1 files changed, 113 insertions, 0 deletions
diff --git a/framework/src/onos/core/api/src/main/java/org/onosproject/store/service/SetEvent.java b/framework/src/onos/core/api/src/main/java/org/onosproject/store/service/SetEvent.java
new file mode 100644
index 00000000..a869e722
--- /dev/null
+++ b/framework/src/onos/core/api/src/main/java/org/onosproject/store/service/SetEvent.java
@@ -0,0 +1,113 @@
+/*
+ * 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.store.service;
+
+import java.util.Objects;
+
+import com.google.common.base.MoreObjects;
+
+/**
+ * Representation of a DistributedSet update notification.
+ *
+ * @param <E> set element type
+ */
+public final class SetEvent<E> {
+
+    /**
+     * SetEvent type.
+     */
+    public enum Type {
+        /**
+         * Entry added to the set.
+         */
+        ADD,
+
+        /**
+         * Entry removed from the set.
+         */
+        REMOVE
+    }
+
+    private final String name;
+    private final Type type;
+    private final E entry;
+
+    /**
+     * Creates a new event object.
+     *
+     * @param name set name
+     * @param type type of the event
+     * @param entry entry the event concerns
+     */
+    public SetEvent(String name, Type type, E entry) {
+        this.name = name;
+        this.type = type;
+        this.entry = entry;
+    }
+
+    /**
+     * Returns the set name.
+     *
+     * @return name of set
+     */
+    public String name() {
+        return name;
+    }
+
+    /**
+     * Returns the type of the event.
+     *
+     * @return type of the event
+     */
+    public Type type() {
+        return type;
+    }
+
+    /**
+     * Returns the entry this event concerns.
+     *
+     * @return the entry
+     */
+    public E entry() {
+        return entry;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (!(o instanceof SetEvent)) {
+            return false;
+        }
+
+        SetEvent that = (SetEvent) o;
+        return Objects.equals(this.name, that.name) &&
+                Objects.equals(this.type, that.type) &&
+                Objects.equals(this.entry, that.entry);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, type, entry);
+    }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .add("name", name)
+                .add("type", type)
+                .add("entry", entry)
+                .toString();
+    }
+}