| package org.onosproject.store.service; |
| |
| import java.util.Objects; |
| |
| import com.google.common.base.MoreObjects; |
| |
| /** |
| * Representation of a ConsistentMap update notification. |
| * |
| * @param <K> key type |
| * @param <V> value type |
| */ |
| public class MapEvent<K, V> { |
| |
| /** |
| * MapEvent type. |
| */ |
| public enum Type { |
| /** |
| * Entry inserted into the map. |
| */ |
| INSERT, |
| |
| /** |
| * Existing map entry updated. |
| */ |
| UPDATE, |
| |
| /** |
| * Entry removed from map. |
| */ |
| REMOVE |
| } |
| |
| private final String name; |
| private final Type type; |
| private final K key; |
| private final Versioned<V> value; |
| |
| /** |
| * Creates a new event object. |
| * |
| * @param name map name |
| * @param type the type of the event |
| * @param key the key the event concerns |
| * @param value the value related to the key, or null for remove events |
| */ |
| public MapEvent(String name, Type type, K key, Versioned<V> value) { |
| this.name = name; |
| this.type = type; |
| this.key = key; |
| this.value = value; |
| } |
| |
| /** |
| * Returns the map name. |
| * |
| * @return name of map |
| */ |
| public String name() { |
| return name; |
| } |
| |
| /** |
| * Returns the type of the event. |
| * |
| * @return the type of the event |
| */ |
| public Type type() { |
| return type; |
| } |
| |
| /** |
| * Returns the key this event concerns. |
| * |
| * @return the key |
| */ |
| public K key() { |
| return key; |
| } |
| |
| /** |
| * Returns the value associated with this event. If type is REMOVE, |
| * this is the value that was removed. If type is INSERT/UPDATE, this is |
| * the new value. |
| * |
| * @return the value |
| */ |
| public Versioned<V> value() { |
| return value; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (!(o instanceof MapEvent)) { |
| return false; |
| } |
| |
| MapEvent<K, V> that = (MapEvent) o; |
| return Objects.equals(this.name, that.name) && |
| Objects.equals(this.type, that.type) && |
| Objects.equals(this.key, that.key) && |
| Objects.equals(this.value, that.value); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(type, key, value); |
| } |
| |
| @Override |
| public String toString() { |
| return MoreObjects.toStringHelper(getClass()) |
| .add("name", name) |
| .add("type", type) |
| .add("key", key) |
| .add("value", value) |
| .toString(); |
| } |
| } |