1 files changed, 71 insertions, 0 deletions
diff --git a/src/plugins/emulator/src/com/motorola/studio/android/emulator/core/emulationui/EmuViewerLeafNode.java b/src/plugins/emulator/src/com/motorola/studio/android/emulator/core/emulationui/EmuViewerLeafNode.java
new file mode 100644
index 0000000..4f1da74
--- /dev/null
+++ b/src/plugins/emulator/src/com/motorola/studio/android/emulator/core/emulationui/EmuViewerLeafNode.java
@@ -0,0 +1,71 @@
+/*
+* Copyright (C) 2012 The Android Open Source Project
+*
+* 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 com.motorola.studio.android.emulator.core.emulationui;
+
+/**
+ * DESCRIPTION:
+ * This is a utility class used to represent a leaf node of the emulation views
+ * tree viewer
+ *
+ * RESPONSIBILITY:
+ * Guarantee that no children is added to this leaf node
+ *
+ * COLABORATORS:
+ * None.
+ *
+ * USAGE:
+ * A class should construct an instance of this class whenever it wishes
+ * to add a leaf node to an emulation view tree 
+ */
+public abstract class EmuViewerLeafNode extends EmuViewerNode
+{
+    /**
+     * Constructor
+     * 
+     * @see EmuViewerNode#EmuViewerNode(EmuViewerNode, String)
+     */
+    public EmuViewerLeafNode(EmuViewerNode parent, String nodeId)
+    {
+        super(parent, nodeId);
+    }
+
+    /**
+     * @see EmuViewerNode#addChild(EmuViewerNode)
+     */
+    @Override
+    public void addChild(EmuViewerNode child)
+    {
+        // Do nothing
+    }
+
+    /**
+     * Retrieves the id that identifies the bean that provides data to this node
+     * 
+     * @return The bean identifier
+     */
+    public abstract long getBeanId();
+
+    /**
+     * @see java.lang.Object#toString()
+     */
+    @Override
+    public String toString()
+    {
+        // For leaf nodes, identify which is the concrete class name and append to that name
+        // the associated bean id 
+        return getClass().getSimpleName() + ":" + getBeanId();
+    }
+}