GUI -- refactored all the table views (server side) to use the new TableModel method of data generation.

Change-Id: Ib8a188ad432ff335db6cff1e49e08dbaf039436b
diff --git a/core/api/src/main/java/org/onosproject/ui/table/AbstractTableRow.java b/core/api/src/main/java/org/onosproject/ui/table/AbstractTableRow.java
index 5dd11a4..9f456b9 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/AbstractTableRow.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/AbstractTableRow.java
@@ -26,6 +26,7 @@
 /**
  * Provides a partial implementation of {@link TableRow}.
  */
+@Deprecated
 public abstract class AbstractTableRow implements TableRow {
 
     private static final ObjectMapper MAPPER = new ObjectMapper();
diff --git a/core/api/src/main/java/org/onosproject/ui/table/RowComparator.java b/core/api/src/main/java/org/onosproject/ui/table/RowComparator.java
index 9859a65..86f25c1 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/RowComparator.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/RowComparator.java
@@ -21,6 +21,7 @@
 /**
  * Comparator for {@link TableRow}.
  */
+@Deprecated
 public class RowComparator implements Comparator<TableRow> {
     /** Designates the sort direction. */
     public enum Direction {
diff --git a/core/api/src/main/java/org/onosproject/ui/table/TableModel.java b/core/api/src/main/java/org/onosproject/ui/table/TableModel.java
index 2c3ffc5..91e23be 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/TableModel.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/TableModel.java
@@ -46,8 +46,8 @@
  */
 public class TableModel {
 
-    private static final CellComparator DEF_CMP = new DefaultCellComparator();
-    private static final CellFormatter DEF_FMT = new DefaultCellFormatter();
+    private static final CellComparator DEF_CMP = DefaultCellComparator.INSTANCE;
+    private static final CellFormatter DEF_FMT = DefaultCellFormatter.INSTANCE;
 
     private final String[] columnIds;
     private final Set<String> idSet;
@@ -99,13 +99,16 @@
     }
 
     /**
-     * Returns the {@link TableRow} representation of the rows in this table.
+     * Returns the array of column IDs for this table model.
+     * <p>
+     * Implementation note: we are knowingly passing you a reference to
+     * our internal array to avoid copying. Don't mess with it. It's your
+     * table you'll break if you do!
      *
-     * @return formatted table rows
+     * @return the column identifiers
      */
-    // TODO: still need to decide if we need this
-    public TableRow[] getTableRows() {
-        return new TableRow[0];
+    public String[] getColumnIds() {
+        return columnIds;
     }
 
     /**
@@ -113,7 +116,6 @@
      *
      * @return raw table rows
      */
-    // TODO: still need to decide if we should expose this
     public Row[] getRows() {
         return rows.toArray(new Row[rows.size()]);
     }
@@ -264,9 +266,22 @@
          * @param columnId column identifier
          * @return formatted cell value
          */
-        public String getAsString(String columnId) {
+        String getAsString(String columnId) {
             return getFormatter(columnId).format(get(columnId));
         }
+
+        /**
+         * Returns the row as an array of formatted strings.
+         *
+         * @return the formatted row data
+         */
+        public String[] getAsFormattedStrings() {
+            List<String> formatted = new ArrayList<>(columnCount());
+            for (String c : columnIds) {
+                formatted.add(getAsString(c));
+            }
+            return formatted.toArray(new String[formatted.size()]);
+        }
     }
 
     private static final String DESC = "desc";
diff --git a/core/api/src/main/java/org/onosproject/ui/table/TableRequestHandler.java b/core/api/src/main/java/org/onosproject/ui/table/TableRequestHandler.java
index f90c187..b8d4857 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/TableRequestHandler.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/TableRequestHandler.java
@@ -17,10 +17,9 @@
 package org.onosproject.ui.table;
 
 import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.ui.JsonUtils;
 import org.onosproject.ui.RequestHandler;
 
-import java.util.Arrays;
-
 /**
  * Message handler specifically for table views.
  */
@@ -47,29 +46,66 @@
 
     @Override
     public void process(long sid, ObjectNode payload) {
-        RowComparator rc = TableUtils.createRowComparator(payload, defaultColId());
-        TableRow[] rows = generateTableRows(payload);
-        Arrays.sort(rows, rc);
+        TableModel tm = createTableModel();
+        populateTable(tm, payload);
+
+        String sortCol = JsonUtils.string(payload, "sortCol", defaultColumnId());
+        String sortDir = JsonUtils.string(payload, "sortDir", "asc");
+        tm.sort(sortCol, TableModel.sortDir(sortDir));
+
         ObjectNode rootNode = MAPPER.createObjectNode();
-        rootNode.set(nodeName, TableUtils.generateArrayNode(rows));
+        rootNode.set(nodeName, TableUtils.generateArrayNode(tm));
         sendMessage(respType, 0, rootNode);
     }
 
     /**
-     * Returns the default column ID, when one is not supplied in the payload
-     * defining the column on which to sort. This implementation returns "id".
+     * Creates the table model (devoid of data) using {@link #getColumnIds()}
+     * to initialize it, ready to be populated.
+     * <p>
+     * This default implementation returns a table model with default
+     * formatters and comparators for all columns.
      *
-     * @return default sort column id
+     * @return an empty table model
      */
-    protected String defaultColId() {
+    protected TableModel createTableModel() {
+        return new TableModel(getColumnIds());
+    }
+
+    /**
+     * Returns the default column ID to be used when one is not supplied in
+     * the payload as the column on which to sort.
+     * <p>
+     * This default implementation returns "id".
+     *
+     * @return default sort column identifier
+     */
+    protected String defaultColumnId() {
         return "id";
     }
 
     /**
-     * Subclasses should generate table rows for their specific table instance.
+     * Subclasses should return the array of column IDs with which
+     * to initialize their table model.
      *
-     * @param payload provided in case custom parameters are present
-     * @return generated table rows
+     * @return the column IDs
      */
-    protected abstract TableRow[] generateTableRows(ObjectNode payload);
+    protected abstract String[] getColumnIds();
+
+    /**
+     * Subclasses should populate the table model by adding
+     * {@link TableModel.Row rows}.
+     * <pre>
+     *     tm.addRow()
+     *         .cell(COL_ONE, ...)
+     *         .cell(COL_TWO, ...)
+     *         ... ;
+     * </pre>
+     * The request payload is provided in case there are request filtering
+     * parameters (other than sort column and sort direction) that are required
+     * to generate the appropriate data.
+     *
+     * @param tm the table model
+     * @param payload request payload
+     */
+    protected abstract void populateTable(TableModel tm, ObjectNode payload);
 }
diff --git a/core/api/src/main/java/org/onosproject/ui/table/TableRow.java b/core/api/src/main/java/org/onosproject/ui/table/TableRow.java
index 4775687..1824be8 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/TableRow.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/TableRow.java
@@ -22,6 +22,7 @@
 /**
  * Defines a table row abstraction to support sortable tables on the GUI.
  */
+@Deprecated
 public interface TableRow {
 
     // TODO: Define TableCell interface and return that, rather than String
diff --git a/core/api/src/main/java/org/onosproject/ui/table/TableUtils.java b/core/api/src/main/java/org/onosproject/ui/table/TableUtils.java
index 9f63cba..eb2dff7 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/TableUtils.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/TableUtils.java
@@ -16,10 +16,10 @@
 
 package org.onosproject.ui.table;
 
+import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
-import org.onosproject.ui.JsonUtils;
 
 /**
  * Provides static utility methods for dealing with tables.
@@ -32,46 +32,27 @@
     private TableUtils() { }
 
     /**
-     * Produces a JSON array node from the specified table rows.
+     * Generates a JSON array node from a table model.
      *
-     * @param rows table rows
-     * @return JSON array
+     * @param tm the table model
+     * @return the array node representation
      */
-    public static ArrayNode generateArrayNode(TableRow[] rows) {
+    public static ArrayNode generateArrayNode(TableModel tm) {
         ArrayNode array = MAPPER.createArrayNode();
-        for (TableRow r : rows) {
-            array.add(r.toJsonNode());
+        for (TableModel.Row r : tm.getRows()) {
+            array.add(toJsonNode(r, tm));
         }
         return array;
     }
 
-    /**
-     * Creates a row comparator for the given request. The ID of the column
-     * to sort on is the payload's "sortCol" property (defaults to "id").
-     * The direction for the sort is the payload's "sortDir" property
-     * (defaults to "asc").
-     *
-     * @param payload the event payload
-     * @return a row comparator
-     */
-    public static RowComparator createRowComparator(ObjectNode payload) {
-        return createRowComparator(payload, "id");
-    }
-
-    /**
-     * Creates a row comparator for the given request. The ID of the column to
-     * sort on is the payload's "sortCol" property (or the specified default).
-     * The direction for the sort is the payload's "sortDir" property
-     * (defaults to "asc").
-     *
-     * @param payload the event payload
-     * @param defColId the default column ID
-     * @return a row comparator
-     */
-    public static RowComparator createRowComparator(ObjectNode payload,
-                                                    String defColId) {
-        String sortCol = JsonUtils.string(payload, "sortCol", defColId);
-        String sortDir = JsonUtils.string(payload, "sortDir", "asc");
-        return new RowComparator(sortCol, RowComparator.direction(sortDir));
+    private static JsonNode toJsonNode(TableModel.Row row, TableModel tm) {
+        ObjectNode result = MAPPER.createObjectNode();
+        String[] keys = tm.getColumnIds();
+        String[] cells = row.getAsFormattedStrings();
+        int n = keys.length;
+        for (int i = 0; i < n; i++) {
+            result.put(keys[i], cells[i]);
+        }
+        return result;
     }
 }
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/AppIdFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/AppIdFormatter.java
new file mode 100644
index 0000000..f6ccf2c0
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/AppIdFormatter.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.onosproject.ui.table.cell;
+
+import org.onosproject.core.ApplicationId;
+import org.onosproject.ui.table.CellFormatter;
+
+/**
+ * Formats an application identifier as "(app-id) : (app-name)".
+ */
+public class AppIdFormatter extends AbstractCellFormatter {
+
+    @Override
+    protected String nonNullFormat(Object value) {
+        ApplicationId appId = (ApplicationId) value;
+        return appId.id() + " : " + appId.name();
+    }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new AppIdFormatter();
+}
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/ConnectPointFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/ConnectPointFormatter.java
new file mode 100644
index 0000000..18f7233
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/ConnectPointFormatter.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.onosproject.ui.table.cell;
+
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.ui.table.CellFormatter;
+
+/**
+ * Formats a connect point as "(element-id)/(port)".
+ */
+public class ConnectPointFormatter extends AbstractCellFormatter {
+
+    @Override
+    protected String nonNullFormat(Object value) {
+        ConnectPoint cp = (ConnectPoint) value;
+        return cp.elementId() + "/" + cp.port();
+    }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new ConnectPointFormatter();
+}
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellComparator.java b/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellComparator.java
index 7846f89..fa49755 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellComparator.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellComparator.java
@@ -17,6 +17,8 @@
 
 package org.onosproject.ui.table.cell;
 
+import org.onosproject.ui.table.CellComparator;
+
 /**
  * A default cell comparator. Implements a lexicographical compare function
  * (i.e. string sorting). Uses the objects' toString() method and then
@@ -24,8 +26,14 @@
  * are considered "smaller" than any non-null value.
  */
 public class DefaultCellComparator extends AbstractCellComparator {
+
     @Override
     protected int nonNullCompare(Object o1, Object o2) {
         return o1.toString().compareTo(o2.toString());
     }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellComparator INSTANCE = new DefaultCellComparator();
 }
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellFormatter.java
index c030236..5e4f5ba 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellFormatter.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/DefaultCellFormatter.java
@@ -17,12 +17,20 @@
 
 package org.onosproject.ui.table.cell;
 
+import org.onosproject.ui.table.CellFormatter;
+
 /**
  * A default cell formatter. Uses the object's toString() method.
  */
 public class DefaultCellFormatter extends AbstractCellFormatter {
+
     @Override
     public String nonNullFormat(Object value) {
         return value.toString();
     }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new DefaultCellFormatter();
 }
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/HexFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/HexFormatter.java
index d4aaade..8104f48 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/cell/HexFormatter.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/HexFormatter.java
@@ -17,12 +17,20 @@
 
 package org.onosproject.ui.table.cell;
 
+import org.onosproject.ui.table.CellFormatter;
+
 /**
- * Formats integer values as hex strings.
+ * Formats integer values as hex strings with a "0x" prefix.
  */
 public class HexFormatter extends AbstractCellFormatter {
+
     @Override
     protected String nonNullFormat(Object value) {
         return "0x" + Integer.toHexString((Integer) value);
     }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new HexFormatter();
 }
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/HostLocationFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/HostLocationFormatter.java
new file mode 100644
index 0000000..9d6024d
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/HostLocationFormatter.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.onosproject.ui.table.cell;
+
+import org.onosproject.net.HostLocation;
+import org.onosproject.ui.table.CellFormatter;
+
+/**
+ * Formats a host location as "(device-id)/(port)".
+ */
+public class HostLocationFormatter extends AbstractCellFormatter {
+
+    @Override
+    protected String nonNullFormat(Object value) {
+        HostLocation loc = (HostLocation) value;
+        return loc.deviceId() + "/" + loc.port();
+    }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new HostLocationFormatter();
+}
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/IntComparator.java b/core/api/src/main/java/org/onosproject/ui/table/cell/IntComparator.java
index c399d53..ddd90eb 100644
--- a/core/api/src/main/java/org/onosproject/ui/table/cell/IntComparator.java
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/IntComparator.java
@@ -17,14 +17,22 @@
 
 package org.onosproject.ui.table.cell;
 
+import org.onosproject.ui.table.CellComparator;
+
 /**
  * An integer-based cell comparator.
  * Note that null values are acceptable and are considered "smaller" than
  * any non-null value.
  */
 public class IntComparator extends AbstractCellComparator {
+
     @Override
     protected int nonNullCompare(Object o1, Object o2) {
         return ((int) o1) - ((int) o2);
     }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellComparator INSTANCE = new IntComparator();
 }
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/LongComparator.java b/core/api/src/main/java/org/onosproject/ui/table/cell/LongComparator.java
new file mode 100644
index 0000000..3234e50
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/LongComparator.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.onosproject.ui.table.cell;
+
+import org.onosproject.ui.table.CellComparator;
+
+/**
+ * A long-based cell comparator.
+ * Note that null values are acceptable and are considered "smaller" than
+ * any non-null value.
+ */
+public class LongComparator extends AbstractCellComparator {
+
+    @Override
+    protected int nonNullCompare(Object o1, Object o2) {
+        long diff = ((long) o1) - ((long) o2);
+        return diff == 0 ? 0 : (diff < 0 ? -1 : 1);
+    }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellComparator INSTANCE = new LongComparator();
+}
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/TimeFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/TimeFormatter.java
new file mode 100644
index 0000000..e0aec9d
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/TimeFormatter.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.onosproject.ui.table.cell;
+
+import org.joda.time.DateTime;
+import org.joda.time.format.DateTimeFormat;
+import org.joda.time.format.DateTimeFormatter;
+import org.onosproject.ui.table.CellFormatter;
+
+/**
+ * Formats time values using {@link DateTimeFormatter}.
+ */
+public class TimeFormatter extends AbstractCellFormatter {
+
+    private static final DateTimeFormatter DTF = DateTimeFormat.longTime();
+
+    @Override
+    protected String nonNullFormat(Object value) {
+        return DTF.print((DateTime) value);
+    }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new TimeFormatter();
+}
diff --git a/core/api/src/test/java/org/onosproject/ui/table/TableModelTest.java b/core/api/src/test/java/org/onosproject/ui/table/TableModelTest.java
index 40a9672..53725f2 100644
--- a/core/api/src/test/java/org/onosproject/ui/table/TableModelTest.java
+++ b/core/api/src/test/java/org/onosproject/ui/table/TableModelTest.java
@@ -45,7 +45,6 @@
     private TableModel tm;
     private TableModel.Row[] rows;
     private TableModel.Row row;
-    private TableRow[] tableRows;
     private CellFormatter fmt;
 
     @Test(expected = NullPointerException.class)
@@ -68,9 +67,6 @@
         tm = new TableModel(FOO, BAR);
         assertEquals("column count", 2, tm.columnCount());
         assertEquals("row count", 0, tm.rowCount());
-
-        tableRows = tm.getTableRows();
-        assertEquals("row count alt", 0, tableRows.length);
     }
 
     @Test
@@ -225,7 +221,7 @@
         initUnsortedTable();
 
         // first, tell the table to use an integer-based comparator
-        tm.setComparator(BAR, new IntComparator());
+        tm.setComparator(BAR, IntComparator.INSTANCE);
 
         // sort by number
         tm.sort(BAR, SortDir.ASC);
@@ -256,8 +252,8 @@
         initUnsortedTable();
 
         // set integer-based comparator and hex formatter
-        tm.setComparator(BAR, new IntComparator());
-        tm.setFormatter(BAR, new HexFormatter());
+        tm.setComparator(BAR, IntComparator.INSTANCE);
+        tm.setFormatter(BAR, HexFormatter.INSTANCE);
 
         // sort by number
         tm.sort(BAR, SortDir.ASC);
diff --git a/core/api/src/test/java/org/onosproject/ui/table/cell/DefaultCellComparatorTest.java b/core/api/src/test/java/org/onosproject/ui/table/cell/DefaultCellComparatorTest.java
index d4cd8ed..38c6bed 100644
--- a/core/api/src/test/java/org/onosproject/ui/table/cell/DefaultCellComparatorTest.java
+++ b/core/api/src/test/java/org/onosproject/ui/table/cell/DefaultCellComparatorTest.java
@@ -39,7 +39,7 @@
     private static final int NUMBER = 42;
     private static final TestClass OBJECT = new TestClass();
 
-    private CellComparator cmp = new DefaultCellComparator();
+    private CellComparator cmp = DefaultCellComparator.INSTANCE;
 
     @Test
     public void sameString() {
diff --git a/core/api/src/test/java/org/onosproject/ui/table/cell/DefaultCellFormatterTest.java b/core/api/src/test/java/org/onosproject/ui/table/cell/DefaultCellFormatterTest.java
index 8934f48..6351a1f 100644
--- a/core/api/src/test/java/org/onosproject/ui/table/cell/DefaultCellFormatterTest.java
+++ b/core/api/src/test/java/org/onosproject/ui/table/cell/DefaultCellFormatterTest.java
@@ -37,7 +37,7 @@
         }
     }
 
-    private CellFormatter fmt = new DefaultCellFormatter();
+    private CellFormatter fmt = DefaultCellFormatter.INSTANCE;
 
     @Test
     public void formatNull() {
diff --git a/core/api/src/test/java/org/onosproject/ui/table/cell/HexFormatterTest.java b/core/api/src/test/java/org/onosproject/ui/table/cell/HexFormatterTest.java
index 738fbdd..ad23b02 100644
--- a/core/api/src/test/java/org/onosproject/ui/table/cell/HexFormatterTest.java
+++ b/core/api/src/test/java/org/onosproject/ui/table/cell/HexFormatterTest.java
@@ -18,6 +18,7 @@
 package org.onosproject.ui.table.cell;
 
 import org.junit.Test;
+import org.onosproject.ui.table.CellFormatter;
 
 import static org.junit.Assert.assertEquals;
 
@@ -26,7 +27,7 @@
  */
 public class HexFormatterTest {
 
-    private HexFormatter fmt = new HexFormatter();
+    private CellFormatter fmt = HexFormatter.INSTANCE;
 
     @Test
     public void nullValue() {
diff --git a/core/api/src/test/java/org/onosproject/ui/table/cell/IntComparatorTest.java b/core/api/src/test/java/org/onosproject/ui/table/cell/IntComparatorTest.java
index 2b45b3f..9455329 100644
--- a/core/api/src/test/java/org/onosproject/ui/table/cell/IntComparatorTest.java
+++ b/core/api/src/test/java/org/onosproject/ui/table/cell/IntComparatorTest.java
@@ -27,7 +27,7 @@
  */
 public class IntComparatorTest {
 
-    private CellComparator cmp = new IntComparator();
+    private CellComparator cmp = IntComparator.INSTANCE;
 
     @Test
     public void twoNulls() {
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/ApplicationViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/ApplicationViewMessageHandler.java
index 6a00f13..61a543a 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/ApplicationViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/ApplicationViewMessageHandler.java
@@ -24,13 +24,10 @@
 import org.onosproject.core.ApplicationId;
 import org.onosproject.ui.RequestHandler;
 import org.onosproject.ui.UiMessageHandler;
-import org.onosproject.ui.table.AbstractTableRow;
+import org.onosproject.ui.table.TableModel;
 import org.onosproject.ui.table.TableRequestHandler;
-import org.onosproject.ui.table.TableRow;
 
 import java.util.Collection;
-import java.util.List;
-import java.util.stream.Collectors;
 
 import static org.onosproject.app.ApplicationState.ACTIVE;
 
@@ -55,6 +52,10 @@
     private static final String ICON_ID_ACTIVE = "active";
     private static final String ICON_ID_INACTIVE = "appInactive";
 
+    private static final String[] COL_IDS = {
+            STATE, STATE_IID, ID, VERSION, ORIGIN, DESC
+    };
+
     @Override
     protected Collection<RequestHandler> getHandlers() {
         return ImmutableSet.of(
@@ -70,14 +71,31 @@
         }
 
         @Override
-        protected TableRow[] generateTableRows(ObjectNode payload) {
-            ApplicationService service = get(ApplicationService.class);
-            List<TableRow> list = service.getApplications().stream()
-                    .map(application -> new ApplicationTableRow(service, application))
-                    .collect(Collectors.toList());
-            return list.toArray(new TableRow[list.size()]);
+        protected String[] getColumnIds() {
+            return COL_IDS;
         }
 
+        @Override
+        protected void populateTable(TableModel tm, ObjectNode payload) {
+            ApplicationService as = get(ApplicationService.class);
+            for (Application app : as.getApplications()) {
+                populateRow(tm.addRow(), app, as);
+            }
+        }
+
+        private void populateRow(TableModel.Row row, Application app,
+                                 ApplicationService as) {
+            ApplicationId id = app.id();
+            ApplicationState state = as.getState(id);
+            String iconId = state == ACTIVE ? ICON_ID_ACTIVE : ICON_ID_INACTIVE;
+
+            row.cell(STATE, state)
+                .cell(STATE_IID, iconId)
+                .cell(ID, id.name())
+                .cell(VERSION, app.version())
+                .cell(ORIGIN, app.origin())
+                .cell(DESC, app.description());
+        }
     }
 
     // handler for application management control button actions
@@ -104,33 +122,4 @@
             }
         }
     }
-
-    /**
-     * TableRow implementation for
-     * {@link org.onosproject.core.Application applications}.
-     */
-    private static class ApplicationTableRow extends AbstractTableRow {
-
-        private static final String[] COL_IDS = {
-                STATE, STATE_IID, ID, VERSION, ORIGIN, DESC
-        };
-
-        public ApplicationTableRow(ApplicationService service, Application app) {
-            ApplicationState state = service.getState(app.id());
-            String iconId = state == ACTIVE ? ICON_ID_ACTIVE : ICON_ID_INACTIVE;
-
-            add(STATE, state);
-            add(STATE_IID, iconId);
-            add(ID, app.id().name());
-            add(VERSION, app.version());
-            add(ORIGIN, app.origin());
-            add(DESC, app.description());
-        }
-
-        @Override
-        protected String[] columnIds() {
-            return COL_IDS;
-        }
-    }
-
 }
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/ClusterViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/ClusterViewMessageHandler.java
index 1199b13..ab0da70 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/ClusterViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/ClusterViewMessageHandler.java
@@ -19,19 +19,17 @@
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.collect.ImmutableSet;
 import org.joda.time.DateTime;
-import org.joda.time.format.DateTimeFormat;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.ControllerNode;
 import org.onosproject.cluster.NodeId;
 import org.onosproject.ui.RequestHandler;
 import org.onosproject.ui.UiMessageHandler;
-import org.onosproject.ui.table.AbstractTableRow;
+import org.onosproject.ui.table.TableModel;
 import org.onosproject.ui.table.TableRequestHandler;
-import org.onosproject.ui.table.TableRow;
+import org.onosproject.ui.table.cell.IntComparator;
+import org.onosproject.ui.table.cell.TimeFormatter;
 
 import java.util.Collection;
-import java.util.List;
-import java.util.stream.Collectors;
 
 
 /**
@@ -49,6 +47,13 @@
     private static final String STATE_IID = "_iconid_state";
     private static final String UPDATED = "updated";
 
+    private static final String[] COL_IDS = {
+            ID, IP, TCP_PORT, STATE_IID, UPDATED
+    };
+
+    private static final String ICON_ID_ONLINE = "active";
+    private static final String ICON_ID_OFFLINE = "inactive";
+
     @Override
     protected Collection<RequestHandler> getHandlers() {
         return ImmutableSet.of(new ClusterDataRequest());
@@ -61,45 +66,38 @@
         }
 
         @Override
-        protected TableRow[] generateTableRows(ObjectNode payload) {
-            ClusterService service = get(ClusterService.class);
-            List<TableRow> list = service.getNodes().stream()
-                    .map(node -> new ControllerNodeTableRow(service, node))
-                    .collect(Collectors.toList());
-            return list.toArray(new TableRow[list.size()]);
-        }
-    }
-
-    /**
-     * TableRow implementation for {@link ControllerNode controller nodes}.
-     */
-    private static class ControllerNodeTableRow extends AbstractTableRow {
-
-        private static final String[] COL_IDS = {
-                ID, IP, TCP_PORT, STATE_IID, UPDATED
-        };
-
-        private static final String ICON_ID_ONLINE = "active";
-        private static final String ICON_ID_OFFLINE = "inactive";
-
-        public ControllerNodeTableRow(ClusterService service, ControllerNode n) {
-            NodeId id = n.id();
-            DateTime lastUpdated = service.getLastUpdated(id);
-            org.joda.time.format.DateTimeFormatter format = DateTimeFormat.longTime();
-            String iconId = (service.getState(id) == ControllerNode.State.ACTIVE) ?
-                    ICON_ID_ONLINE : ICON_ID_OFFLINE;
-
-            add(ID, id.toString());
-            add(IP, n.ip().toString());
-            add(TCP_PORT, Integer.toString(n.tcpPort()));
-            add(STATE_IID, iconId);
-            add(UPDATED, format.print(lastUpdated));
+        protected String[] getColumnIds() {
+            return COL_IDS;
         }
 
         @Override
-        protected String[] columnIds() {
-            return COL_IDS;
+        protected TableModel createTableModel() {
+            TableModel tm = super.createTableModel();
+            tm.setComparator(TCP_PORT, IntComparator.INSTANCE);
+            tm.setFormatter(UPDATED, TimeFormatter.INSTANCE);
+            return tm;
+        }
+
+        @Override
+        protected void populateTable(TableModel tm, ObjectNode payload) {
+            ClusterService cs = get(ClusterService.class);
+            for (ControllerNode node : cs.getNodes()) {
+                populateRow(tm.addRow(), node, cs);
+            }
+        }
+
+        private void populateRow(TableModel.Row row, ControllerNode node,
+                                 ClusterService cs) {
+            NodeId id = node.id();
+            DateTime lastUpdated = cs.getLastUpdated(id);
+            String iconId = (cs.getState(id) == ControllerNode.State.ACTIVE) ?
+                    ICON_ID_ONLINE : ICON_ID_OFFLINE;
+
+            row.cell(ID, id)
+                .cell(IP, node.ip())
+                .cell(TCP_PORT, node.tcpPort())
+                .cell(STATE_IID, iconId)
+                .cell(UPDATED, lastUpdated);
         }
     }
-
 }
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/DeviceViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/DeviceViewMessageHandler.java
index 806e8c6..22c1723 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/DeviceViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/DeviceViewMessageHandler.java
@@ -29,9 +29,9 @@
 import org.onosproject.net.link.LinkService;
 import org.onosproject.ui.RequestHandler;
 import org.onosproject.ui.UiMessageHandler;
-import org.onosproject.ui.table.AbstractTableRow;
+import org.onosproject.ui.table.TableModel;
 import org.onosproject.ui.table.TableRequestHandler;
-import org.onosproject.ui.table.TableRow;
+import org.onosproject.ui.table.cell.IntComparator;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -73,6 +73,15 @@
     private static final String NAME = "name";
 
 
+    private static final String[] COL_IDS = {
+            AVAILABLE, AVAILABLE_IID, TYPE_IID, ID,
+            NUM_PORTS, MASTER_ID, MFR, HW, SW,
+            PROTOCOL, CHASSIS_ID, SERIAL
+    };
+
+    private static final String ICON_ID_ONLINE = "active";
+    private static final String ICON_ID_OFFLINE = "inactive";
+
     @Override
     protected Collection<RequestHandler> getHandlers() {
         return ImmutableSet.of(
@@ -81,6 +90,10 @@
         );
     }
 
+    private static String getTypeIconId(Device d) {
+        return DEV_ICON_PREFIX + d.type().toString();
+    }
+
     // handler for device table requests
     private final class DataRequestHandler extends TableRequestHandler {
         private DataRequestHandler() {
@@ -88,14 +101,42 @@
         }
 
         @Override
-        protected TableRow[] generateTableRows(ObjectNode payload) {
-            DeviceService service = get(DeviceService.class);
-            MastershipService mastershipService = get(MastershipService.class);
-            List<TableRow> list = new ArrayList<>();
-            for (Device dev : service.getDevices()) {
-                list.add(new DeviceTableRow(service, mastershipService, dev));
+        protected String[] getColumnIds() {
+            return COL_IDS;
+        }
+
+        @Override
+        protected TableModel createTableModel() {
+            TableModel tm = super.createTableModel();
+            tm.setComparator(NUM_PORTS, IntComparator.INSTANCE);
+            return tm;
+        }
+
+        @Override
+        protected void populateTable(TableModel tm, ObjectNode payload) {
+            DeviceService ds = get(DeviceService.class);
+            MastershipService ms = get(MastershipService.class);
+            for (Device dev : ds.getDevices()) {
+                populateRow(tm.addRow(), dev, ds, ms);
             }
-            return list.toArray(new TableRow[list.size()]);
+        }
+
+        private void populateRow(TableModel.Row row, Device dev,
+                                 DeviceService ds, MastershipService ms) {
+            DeviceId id = dev.id();
+            boolean available = ds.isAvailable(id);
+            String iconId = available ? ICON_ID_ONLINE : ICON_ID_OFFLINE;
+
+            row.cell(ID, id)
+                .cell(AVAILABLE, available)
+                .cell(AVAILABLE_IID, iconId)
+                .cell(TYPE_IID, getTypeIconId(dev))
+                .cell(MFR, dev.manufacturer())
+                .cell(HW, dev.hwVersion())
+                .cell(SW, dev.swVersion())
+                .cell(PROTOCOL, dev.annotations().value(PROTOCOL))
+                .cell(NUM_PORTS, ds.getPorts(id).size())
+                .cell(MASTER_ID, ms.getMasterFor(id));
         }
     }
 
@@ -168,51 +209,5 @@
 
             return port;
         }
-
     }
-
-    private static String getTypeIconId(Device d) {
-        return DEV_ICON_PREFIX + d.type().toString();
-    }
-
-    /**
-     * TableRow implementation for {@link Device devices}.
-     */
-    private static class DeviceTableRow extends AbstractTableRow {
-
-        private static final String[] COL_IDS = {
-                AVAILABLE, AVAILABLE_IID, TYPE_IID, ID,
-                NUM_PORTS, MASTER_ID, MFR, HW, SW,
-                PROTOCOL, CHASSIS_ID, SERIAL
-        };
-
-        private static final String ICON_ID_ONLINE = "active";
-        private static final String ICON_ID_OFFLINE = "inactive";
-
-        public DeviceTableRow(DeviceService service,
-                              MastershipService ms,
-                              Device d) {
-            boolean available = service.isAvailable(d.id());
-            String iconId = available ? ICON_ID_ONLINE : ICON_ID_OFFLINE;
-            DeviceId id = d.id();
-            List<Port> ports = service.getPorts(id);
-
-            add(ID, id.toString());
-            add(AVAILABLE, Boolean.toString(available));
-            add(AVAILABLE_IID, iconId);
-            add(TYPE_IID, getTypeIconId(d));
-            add(MFR, d.manufacturer());
-            add(HW, d.hwVersion());
-            add(SW, d.swVersion());
-            add(PROTOCOL, d.annotations().value(PROTOCOL));
-            add(NUM_PORTS, Integer.toString(ports.size()));
-            add(MASTER_ID, ms.getMasterFor(d.id()).toString());
-        }
-
-        @Override
-        protected String[] columnIds() {
-            return COL_IDS;
-        }
-    }
-
 }
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/FlowViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/FlowViewMessageHandler.java
index 5a795ed..61417cd 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/FlowViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/FlowViewMessageHandler.java
@@ -28,11 +28,11 @@
 import org.onosproject.net.flow.instructions.Instruction;
 import org.onosproject.ui.RequestHandler;
 import org.onosproject.ui.UiMessageHandler;
-import org.onosproject.ui.table.AbstractTableRow;
+import org.onosproject.ui.table.TableModel;
 import org.onosproject.ui.table.TableRequestHandler;
-import org.onosproject.ui.table.TableRow;
+import org.onosproject.ui.table.cell.IntComparator;
+import org.onosproject.ui.table.cell.LongComparator;
 
-import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.Set;
@@ -64,6 +64,11 @@
 
     private static final String COMMA = ", ";
 
+    private static final String[] COL_IDS = {
+            ID, APP_ID, GROUP_ID, TABLE_ID, PRIORITY, SELECTOR,
+            TREATMENT, TIMEOUT, PERMANENT, STATE, PACKETS, BYTES
+    };
+
     @Override
     protected Collection<RequestHandler> getHandlers() {
         return ImmutableSet.of(new FlowDataRequest());
@@ -77,45 +82,47 @@
         }
 
         @Override
-        protected TableRow[] generateTableRows(ObjectNode payload) {
-            String uri = string(payload, "devId");
-            if (Strings.isNullOrEmpty(uri)) {
-                return new TableRow[0];
-            }
-            DeviceId deviceId = DeviceId.deviceId(uri);
-            FlowRuleService service = get(FlowRuleService.class);
-            List<TableRow> list = new ArrayList<>();
-            for (FlowEntry flow : service.getFlowEntries(deviceId)) {
-                list.add(new FlowTableRow(flow));
-            }
-            return list.toArray(new TableRow[list.size()]);
+        protected String[] getColumnIds() {
+            return COL_IDS;
         }
-    }
 
-    /**
-     * TableRow implementation for
-     * {@link org.onosproject.net.flow.FlowRule flows}.
-     */
-    private static class FlowTableRow extends AbstractTableRow {
+        @Override
+        protected TableModel createTableModel() {
+            TableModel tm = super.createTableModel();
+            tm.setComparator(GROUP_ID, IntComparator.INSTANCE);
+            tm.setComparator(TABLE_ID, IntComparator.INSTANCE);
+            tm.setComparator(PRIORITY, IntComparator.INSTANCE);
+            tm.setComparator(TIMEOUT, IntComparator.INSTANCE);
+            tm.setComparator(PACKETS, LongComparator.INSTANCE);
+            tm.setComparator(BYTES, LongComparator.INSTANCE);
+            return tm;
+        }
 
-        private static final String[] COL_IDS = {
-                ID, APP_ID, GROUP_ID, TABLE_ID, PRIORITY, SELECTOR,
-                TREATMENT, TIMEOUT, PERMANENT, STATE, PACKETS, BYTES
-        };
+        @Override
+        protected void populateTable(TableModel tm, ObjectNode payload) {
+            String uri = string(payload, "devId");
+            if (!Strings.isNullOrEmpty(uri)) {
+                DeviceId deviceId = DeviceId.deviceId(uri);
+                FlowRuleService frs = get(FlowRuleService.class);
+                for (FlowEntry flow : frs.getFlowEntries(deviceId)) {
+                    populateRow(tm.addRow(), flow);
+                }
+            }
+        }
 
-        public FlowTableRow(FlowEntry f) {
-            add(ID, f.id().value());
-            add(APP_ID, f.appId());
-            add(GROUP_ID, f.groupId().id());
-            add(TABLE_ID, f.tableId());
-            add(PRIORITY, f.priority());
-            add(SELECTOR, getSelectorString(f));
-            add(TREATMENT, getTreatmentString(f));
-            add(TIMEOUT, f.timeout());
-            add(PERMANENT, f.isPermanent());
-            add(STATE, capitalizeFully(f.state().toString()));
-            add(PACKETS, f.packets());
-            add(BYTES, f.packets());
+        private void populateRow(TableModel.Row row, FlowEntry flow) {
+            row.cell(ID, flow.id().value())
+                .cell(APP_ID, flow.appId())
+                .cell(GROUP_ID, flow.groupId().id())
+                .cell(TABLE_ID, flow.tableId())
+                .cell(PRIORITY, flow.priority())
+                .cell(SELECTOR, getSelectorString(flow))
+                .cell(TREATMENT, getTreatmentString(flow))
+                .cell(TIMEOUT, flow.timeout())
+                .cell(PERMANENT, flow.isPermanent())
+                .cell(STATE, capitalizeFully(flow.state().toString()))
+                .cell(PACKETS, flow.packets())
+                .cell(BYTES, flow.bytes());
         }
 
         private String getSelectorString(FlowEntry f) {
@@ -184,11 +191,5 @@
             sb.delete(pos, sb.length());
             return sb;
         }
-
-        @Override
-        protected String[] columnIds() {
-            return COL_IDS;
-        }
     }
-
 }
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/HostViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/HostViewMessageHandler.java
index e20b3e1..643fe40 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/HostViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/HostViewMessageHandler.java
@@ -19,17 +19,14 @@
 import com.google.common.collect.ImmutableSet;
 import org.onosproject.net.AnnotationKeys;
 import org.onosproject.net.Host;
-import org.onosproject.net.HostLocation;
 import org.onosproject.net.host.HostService;
 import org.onosproject.ui.RequestHandler;
 import org.onosproject.ui.UiMessageHandler;
-import org.onosproject.ui.table.AbstractTableRow;
+import org.onosproject.ui.table.TableModel;
 import org.onosproject.ui.table.TableRequestHandler;
-import org.onosproject.ui.table.TableRow;
+import org.onosproject.ui.table.cell.HostLocationFormatter;
 
-import java.util.ArrayList;
 import java.util.Collection;
-import java.util.List;
 
 import static com.google.common.base.Strings.isNullOrEmpty;
 
@@ -51,6 +48,9 @@
 
     private static final String HOST_ICON_PREFIX = "hostIcon_";
 
+    private static final String[] COL_IDS = {
+            TYPE_IID, ID, MAC, VLAN, IPS, LOCATION
+    };
 
     @Override
     protected Collection<RequestHandler> getHandlers() {
@@ -64,34 +64,32 @@
         }
 
         @Override
-        protected TableRow[] generateTableRows(ObjectNode payload) {
-            HostService service = get(HostService.class);
-            List<TableRow> list = new ArrayList<>();
-            for (Host host : service.getHosts()) {
-                list.add(new HostTableRow(host));
-            }
-            return list.toArray(new TableRow[list.size()]);
+        protected String[] getColumnIds() {
+            return COL_IDS;
         }
-    }
 
-    /**
-     * TableRow implementation for {@link Host hosts}.
-     */
-    private static class HostTableRow extends AbstractTableRow {
+        @Override
+        protected TableModel createTableModel() {
+            TableModel tm = super.createTableModel();
+            tm.setFormatter(LOCATION, HostLocationFormatter.INSTANCE);
+            return tm;
+        }
 
-        private static final String[] COL_IDS = {
-                TYPE_IID, ID, MAC, VLAN, IPS, LOCATION
-        };
+        @Override
+        protected void populateTable(TableModel tm, ObjectNode payload) {
+            HostService hs = get(HostService.class);
+            for (Host host : hs.getHosts()) {
+                populateRow(tm.addRow(), host);
+            }
+        }
 
-        public HostTableRow(Host h) {
-            HostLocation location = h.location();
-
-            add(TYPE_IID, getTypeIconId(h));
-            add(ID, h.id());
-            add(MAC, h.mac());
-            add(VLAN, h.vlan());
-            add(IPS, h.ipAddresses());
-            add(LOCATION, concat(location.deviceId(), "/", location.port()));
+        private void populateRow(TableModel.Row row, Host host) {
+            row.cell(TYPE_IID, getTypeIconId(host))
+                    .cell(ID, host.id())
+                    .cell(MAC, host.mac())
+                    .cell(VLAN, host.vlan())
+                    .cell(IPS, host.ipAddresses())
+                    .cell(LOCATION, host.location());
         }
 
         private String getTypeIconId(Host host) {
@@ -99,11 +97,5 @@
             return HOST_ICON_PREFIX +
                     (isNullOrEmpty(hostType) ? "endstation" : hostType);
         }
-
-        @Override
-        protected String[] columnIds() {
-            return COL_IDS;
-        }
     }
-
 }
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/IntentViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/IntentViewMessageHandler.java
index 6d4ef6d..2ab2f08 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/IntentViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/IntentViewMessageHandler.java
@@ -17,7 +17,6 @@
 
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.collect.ImmutableSet;
-import org.onosproject.core.ApplicationId;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.flow.criteria.Criterion;
 import org.onosproject.net.flow.instructions.Instruction;
@@ -33,11 +32,11 @@
 import org.onosproject.net.intent.SinglePointToMultiPointIntent;
 import org.onosproject.ui.RequestHandler;
 import org.onosproject.ui.UiMessageHandler;
-import org.onosproject.ui.table.AbstractTableRow;
+import org.onosproject.ui.table.TableModel;
 import org.onosproject.ui.table.TableRequestHandler;
-import org.onosproject.ui.table.TableRow;
+import org.onosproject.ui.table.cell.AppIdFormatter;
+import org.onosproject.ui.table.cell.IntComparator;
 
-import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.Set;
@@ -58,6 +57,10 @@
     private static final String RESOURCES = "resources";
     private static final String DETAILS = "details";
 
+    private static final String[] COL_IDS = {
+            APP_ID, KEY, TYPE, PRIORITY, RESOURCES, DETAILS
+    };
+
     @Override
     protected Collection<RequestHandler> getHandlers() {
         return ImmutableSet.of(new IntentDataRequest());
@@ -70,30 +73,42 @@
         }
 
         @Override
-        protected TableRow[] generateTableRows(ObjectNode payload) {
-            IntentService service = get(IntentService.class);
-            List<TableRow> list = new ArrayList<>();
-            for (Intent intent : service.getIntents()) {
-                list.add(new IntentTableRow(intent));
-            }
-            return list.toArray(new TableRow[list.size()]);
+        protected String defaultColumnId() {
+            return APP_ID;
         }
 
         @Override
-        protected String defaultColId() {
-            return APP_ID;
+        protected String[] getColumnIds() {
+            return COL_IDS;
         }
-    }
 
-    /**
-     * TableRow implementation for {@link Intent intents}.
-     */
-    private static class IntentTableRow extends AbstractTableRow {
+        @Override
+        protected TableModel createTableModel() {
+            TableModel tm = super.createTableModel();
+            tm.setComparator(PRIORITY, IntComparator.INSTANCE);
+            tm.setFormatter(APP_ID, AppIdFormatter.INSTANCE);
+            return tm;
+        }
 
-        private static final String[] COL_IDS = {
-                APP_ID, KEY, TYPE, PRIORITY, RESOURCES, DETAILS
-        };
+        @Override
+        protected void populateTable(TableModel tm, ObjectNode payload) {
+            IntentService is = get(IntentService.class);
+            for (Intent intent : is.getIntents()) {
+                populateRow(tm.addRow(), intent);
+            }
+        }
 
+        private void populateRow(TableModel.Row row, Intent intent) {
+            row.cell(APP_ID, intent.appId())
+                .cell(KEY, intent.key())
+                .cell(TYPE, intent.getClass().getSimpleName())
+                .cell(PRIORITY, intent.priority())
+                .cell(RESOURCES, formatResources(intent))
+                .cell(DETAILS, formatDetails(intent));
+        }
+
+
+        // == TODO: Review -- Move the following code to a helper class?
         private StringBuilder details = new StringBuilder();
 
         private void appendMultiPointsDetails(Set<ConnectPoint> points) {
@@ -217,25 +232,8 @@
 
         private String formatResources(Intent intent) {
             return (intent.resources().isEmpty() ?
-                     "(No resources for this intent)" :
-                     "Resources: " + intent.resources());
-        }
-
-        public IntentTableRow(Intent intent) {
-            ApplicationId appid = intent.appId();
-
-            add(APP_ID, concat(appid.id(), " : ", appid.name()));
-            add(KEY, intent.key());
-            add(TYPE, intent.getClass().getSimpleName());
-            add(PRIORITY, intent.priority());
-            add(RESOURCES, formatResources(intent));
-            add(DETAILS, formatDetails(intent));
-        }
-
-        @Override
-        protected String[] columnIds() {
-            return COL_IDS;
+                    "(No resources for this intent)" :
+                    "Resources: " + intent.resources());
         }
     }
-
 }
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/LinkViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/LinkViewMessageHandler.java
index ae7f489..e361563 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/LinkViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/LinkViewMessageHandler.java
@@ -19,20 +19,17 @@
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Maps;
-import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.Link;
 import org.onosproject.net.LinkKey;
 import org.onosproject.net.link.LinkService;
 import org.onosproject.ui.RequestHandler;
 import org.onosproject.ui.UiMessageHandler;
 import org.onosproject.ui.impl.TopologyViewMessageHandlerBase.BiLink;
-import org.onosproject.ui.table.AbstractTableRow;
+import org.onosproject.ui.table.TableModel;
 import org.onosproject.ui.table.TableRequestHandler;
-import org.onosproject.ui.table.TableRow;
+import org.onosproject.ui.table.cell.ConnectPointFormatter;
 
-import java.util.ArrayList;
 import java.util.Collection;
-import java.util.List;
 import java.util.Map;
 
 import static org.onosproject.ui.impl.TopologyViewMessageHandlerBase.addLink;
@@ -53,6 +50,13 @@
     private static final String DIRECTION = "direction";
     private static final String DURABLE = "durable";
 
+    private static final String[] COL_IDS = {
+            ONE, TWO, TYPE, STATE, DIRECTION, DURABLE
+    };
+
+    private static final String ICON_ID_ONLINE = "active";
+    private static final String ICON_ID_OFFLINE = "inactive";
+
     @Override
     protected Collection<RequestHandler> getHandlers() {
         return ImmutableSet.of(new LinkDataRequest());
@@ -65,48 +69,51 @@
         }
 
         @Override
-        protected TableRow[] generateTableRows(ObjectNode payload) {
-            LinkService service = get(LinkService.class);
-            List<TableRow> list = new ArrayList<>();
-
-            // First consolidate all uni-directional links into two-directional ones.
-            Map<LinkKey, BiLink> biLinks = Maps.newHashMap();
-            service.getLinks().forEach(link -> addLink(biLinks, link));
-
-            // Now scan over all bi-links and produce table rows from them.
-            biLinks.values().forEach(biLink -> list.add(new LinkTableRow(biLink)));
-            return list.toArray(new TableRow[list.size()]);
+        protected String[] getColumnIds() {
+            return COL_IDS;
         }
 
         @Override
-        protected String defaultColId() {
+        protected String defaultColumnId() {
             return ONE;
         }
-    }
 
-    /**
-     * TableRow implementation for {@link org.onosproject.net.Link links}.
-     */
-    private static class LinkTableRow extends AbstractTableRow {
+        @Override
+        protected TableModel createTableModel() {
+            TableModel tm = super.createTableModel();
+            tm.setFormatter(ONE, ConnectPointFormatter.INSTANCE);
+            tm.setFormatter(TWO, ConnectPointFormatter.INSTANCE);
+            return tm;
+        }
 
-        private static final String[] COL_IDS = {
-                ONE, TWO, TYPE, STATE, DIRECTION, DURABLE
-        };
+        @Override
+        protected void populateTable(TableModel tm, ObjectNode payload) {
+            LinkService ls = get(LinkService.class);
 
-        private static final String ICON_ID_ONLINE = "active";
-        private static final String ICON_ID_OFFLINE = "inactive";
+            // First consolidate all uni-directional links into two-directional ones.
+            Map<LinkKey, BiLink> biLinks = Maps.newHashMap();
+            ls.getLinks().forEach(link -> addLink(biLinks, link));
 
-        public LinkTableRow(BiLink link) {
-            ConnectPoint src = link.one.src();
-            ConnectPoint dst = link.one.dst();
-            linkState(link);
+            // Now scan over all bi-links and produce table rows from them.
+            biLinks.values().forEach(biLink -> populateRow(tm.addRow(), biLink));
+        }
 
-            add(ONE, concat(src.elementId(), "/", src.port()));
-            add(TWO, concat(dst.elementId(), "/", dst.port()));
-            add(TYPE, linkType(link).toLowerCase());
-            add(STATE, linkState(link));
-            add(DIRECTION, link.two != null ? "A <--> B" : "A --> B");
-            add(DURABLE, Boolean.toString(link.one.isDurable()));
+        private void populateRow(TableModel.Row row, BiLink biLink) {
+            row.cell(ONE, biLink.one.src())
+                .cell(TWO, biLink.one.dst())
+                .cell(TYPE, linkType(biLink))
+                .cell(STATE, linkState(biLink))
+                .cell(DIRECTION, linkDir(biLink))
+                .cell(DURABLE, biLink.one.isDurable());
+        }
+
+        private String linkType(BiLink link) {
+            StringBuilder sb = new StringBuilder();
+            sb.append(link.one.type());
+            if (link.two != null && link.two.type() != link.one.type()) {
+                sb.append(" / ").append(link.two.type());
+            }
+            return sb.toString().toLowerCase();
         }
 
         private String linkState(BiLink link) {
@@ -115,16 +122,8 @@
                     ICON_ID_ONLINE : ICON_ID_OFFLINE;
         }
 
-        private String linkType(BiLink link) {
-            return link.two == null || link.one.type() == link.two.type() ?
-                    link.one.type().toString() :
-                    link.one.type().toString() + " / " + link.two.type().toString();
-        }
-
-        @Override
-        protected String[] columnIds() {
-            return COL_IDS;
+        private String linkDir(BiLink link) {
+            return link.two != null ? "A <--> B" : "A --> B";
         }
     }
-
 }
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/PortViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/PortViewMessageHandler.java
index 796207c..a6b5818 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/PortViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/PortViewMessageHandler.java
@@ -24,13 +24,11 @@
 import org.onosproject.net.device.PortStatistics;
 import org.onosproject.ui.RequestHandler;
 import org.onosproject.ui.UiMessageHandler;
-import org.onosproject.ui.table.AbstractTableRow;
+import org.onosproject.ui.table.TableModel;
 import org.onosproject.ui.table.TableRequestHandler;
-import org.onosproject.ui.table.TableRow;
+import org.onosproject.ui.table.cell.LongComparator;
 
-import java.util.ArrayList;
 import java.util.Collection;
-import java.util.List;
 
 
 /**
@@ -51,6 +49,11 @@
     private static final String PKT_TX_DRP = "pkt_tx_drp";
     private static final String DURATION = "duration";
 
+    private static final String[] COL_IDS = {
+            ID, PKT_RX, PKT_TX, BYTES_RX, BYTES_TX,
+            PKT_RX_DRP, PKT_TX_DRP, DURATION
+    };
+
     @Override
     protected Collection<RequestHandler> getHandlers() {
         return ImmutableSet.of(new PortDataRequest());
@@ -64,47 +67,44 @@
         }
 
         @Override
-        protected TableRow[] generateTableRows(ObjectNode payload) {
-            String uri = string(payload, "devId");
-            if (Strings.isNullOrEmpty(uri)) {
-                return new TableRow[0];
-            }
-            DeviceId deviceId = DeviceId.deviceId(uri);
-            DeviceService service = get(DeviceService.class);
-            List<TableRow> list = new ArrayList<>();
-            for (PortStatistics stat : service.getPortStatistics(deviceId)) {
-                list.add(new PortTableRow(stat));
-            }
-            return list.toArray(new TableRow[list.size()]);
-        }
-    }
-
-    /**
-     * TableRow implementation for
-     * {@link org.onosproject.net.device.PortStatistics port statistics}.
-     */
-    private static class PortTableRow extends AbstractTableRow {
-
-        private static final String[] COL_IDS = {
-                ID, PKT_RX, PKT_TX, BYTES_RX, BYTES_TX,
-                PKT_RX_DRP, PKT_TX_DRP, DURATION
-        };
-
-        public PortTableRow(PortStatistics stat) {
-            add(ID, Integer.toString(stat.port()));
-            add(PKT_RX, Long.toString(stat.packetsReceived()));
-            add(PKT_TX, Long.toString(stat.packetsSent()));
-            add(BYTES_RX, Long.toString(stat.bytesReceived()));
-            add(BYTES_TX, Long.toString(stat.bytesSent()));
-            add(PKT_RX_DRP, Long.toString(stat.packetsRxDropped()));
-            add(PKT_TX_DRP, Long.toString(stat.packetsTxDropped()));
-            add(DURATION, Long.toString(stat.durationSec()));
+        protected String[] getColumnIds() {
+            return COL_IDS;
         }
 
         @Override
-        protected String[] columnIds() {
-            return COL_IDS;
+        protected TableModel createTableModel() {
+            TableModel tm = super.createTableModel();
+            tm.setComparator(PKT_RX, LongComparator.INSTANCE);
+            tm.setComparator(PKT_TX, LongComparator.INSTANCE);
+            tm.setComparator(BYTES_RX, LongComparator.INSTANCE);
+            tm.setComparator(BYTES_TX, LongComparator.INSTANCE);
+            tm.setComparator(PKT_RX_DRP, LongComparator.INSTANCE);
+            tm.setComparator(PKT_TX_DRP, LongComparator.INSTANCE);
+            tm.setComparator(DURATION, LongComparator.INSTANCE);
+            return tm;
+        }
+
+        @Override
+        protected void populateTable(TableModel tm, ObjectNode payload) {
+            String uri = string(payload, "devId");
+            if (!Strings.isNullOrEmpty(uri)) {
+                DeviceId deviceId = DeviceId.deviceId(uri);
+                DeviceService ds = get(DeviceService.class);
+                for (PortStatistics stat : ds.getPortStatistics(deviceId)) {
+                    populateRow(tm.addRow(), stat);
+                }
+            }
+        }
+
+        private void populateRow(TableModel.Row row, PortStatistics stat) {
+            row.cell(ID, stat.port())
+                .cell(PKT_RX, stat.packetsReceived())
+                .cell(PKT_TX, stat.packetsSent())
+                .cell(BYTES_RX, stat.bytesReceived())
+                .cell(BYTES_TX, stat.bytesSent())
+                .cell(PKT_RX_DRP, stat.packetsRxDropped())
+                .cell(PKT_TX_DRP, stat.packetsTxDropped())
+                .cell(DURATION, stat.durationSec());
         }
     }
-
 }