Changed nomenclature from Broker to Registry.
diff --git a/net/api/src/main/java/org/onlab/onos/net/flow/FlowRuleProviderRegistry.java b/net/api/src/main/java/org/onlab/onos/net/flow/FlowRuleProviderRegistry.java
new file mode 100644
index 0000000..099d9f4
--- /dev/null
+++ b/net/api/src/main/java/org/onlab/onos/net/flow/FlowRuleProviderRegistry.java
@@ -0,0 +1,10 @@
+package org.onlab.onos.net.flow;
+
+import org.onlab.onos.net.provider.ProviderRegistry;
+
+/**
+ * Abstraction for a flow rule provider registry.
+ */
+public interface FlowRuleProviderRegistry
+ extends ProviderRegistry<FlowRuleProvider, FlowRuleProviderService> {
+}