1 files changed, 72 insertions, 0 deletions
diff --git a/plugins/org.eclipse.net4j.examples.installer/examples/org.eclipse.net4j.buddies.common/src/org/eclipse/net4j/buddies/internal/common/MembershipKey.java b/plugins/org.eclipse.net4j.examples.installer/examples/org.eclipse.net4j.buddies.common/src/org/eclipse/net4j/buddies/internal/common/MembershipKey.java
new file mode 100644
index 0000000000..eb2119f2d8
--- /dev/null
+++ b/plugins/org.eclipse.net4j.examples.installer/examples/org.eclipse.net4j.buddies.common/src/org/eclipse/net4j/buddies/internal/common/MembershipKey.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Contributors:
+ *    Eike Stepper - initial API and implementation
+ */
+package org.eclipse.net4j.buddies.internal.common;
+
+import org.eclipse.net4j.buddies.common.IBuddy;
+import org.eclipse.net4j.buddies.common.ICollaboration;
+import org.eclipse.net4j.buddies.common.IMembershipKey;
+import org.eclipse.net4j.util.ObjectUtil;
+
+/**
+ * @author Eike Stepper
+ */
+public class MembershipKey implements IMembershipKey
+{
+  private IBuddy buddy;
+
+  private ICollaboration collaboration;
+
+  public MembershipKey(IBuddy buddy, ICollaboration collaboration)
+  {
+    this.buddy = buddy;
+    this.collaboration = collaboration;
+  }
+
+  public IBuddy getBuddy()
+  {
+    return buddy;
+  }
+
+  public ICollaboration getCollaboration()
+  {
+    return collaboration;
+  }
+
+  @Override
+  public boolean equals(Object obj)
+  {
+    if (obj == this)
+    {
+      return true;
+    }
+
+    if (obj instanceof IMembershipKey)
+    {
+      IMembershipKey key = (IMembershipKey)obj;
+      return ObjectUtil.equals(getBuddy(), key.getBuddy())
+          && ObjectUtil.equals(getCollaboration(), key.getCollaboration());
+    }
+
+    return false;
+  }
+
+  @Override
+  public int hashCode()
+  {
+    return ObjectUtil.hashCode(buddy) ^ ObjectUtil.hashCode(collaboration);
+  }
+
+  @Override
+  public String toString()
+  {
+    return buddy + "(" + collaboration + ")"; //$NON-NLS-1$ //$NON-NLS-2$
+  }
+}