From 5c94d4f9a0648fcd36db3292abf229fb0767698a Mon Sep 17 00:00:00 2001
From: Jannis Harder <harder@informatik.uni-luebeck.de>
Date: Thu, 5 May 2011 19:49:59 +0200
Subject: Implemented Connection creation in event classes

git-svn-id: svn://sunsvr01.isp.uni-luebeck.de/swproj13/trunk@151 72836036-5685-4462-b002-a69064685172
---
 src/jrummikub/util/Event.java  | 10 ++++++++--
 src/jrummikub/util/Event1.java | 10 ++++++++--
 src/jrummikub/util/Event2.java | 10 ++++++++--
 3 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/src/jrummikub/util/Event.java b/src/jrummikub/util/Event.java
index f76b861..491e10f 100644
--- a/src/jrummikub/util/Event.java
+++ b/src/jrummikub/util/Event.java
@@ -7,9 +7,15 @@ public class Event implements IEvent {
   private HashSet<IListener> listeners = new HashSet<IListener>();
 
   @Override
-  public Connection add(IListener listener) {
+  public Connection add(final IListener listener) {
     listeners.add(listener);
-    return null;
+    return new Connection() {
+		
+		@Override
+		public void remove() {
+			Event.this.remove(listener);
+		}
+	};
   }
 
   @Override
diff --git a/src/jrummikub/util/Event1.java b/src/jrummikub/util/Event1.java
index ff6c037..d721a7e 100644
--- a/src/jrummikub/util/Event1.java
+++ b/src/jrummikub/util/Event1.java
@@ -12,9 +12,15 @@ public class Event1<T> implements IEvent1<T> {
 	private HashSet<IListener1<T>> listeners = new HashSet<IListener1<T>>();
 
 	@Override
-	public Connection add(IListener1<T> listener) {
+	public Connection add(final IListener1<T> listener) {
 		listeners.add(listener);
-		return null;
+	    return new Connection() {
+			
+			@Override
+			public void remove() {
+				Event1.this.remove(listener);
+			}
+		};
 	}
 
 	@Override
diff --git a/src/jrummikub/util/Event2.java b/src/jrummikub/util/Event2.java
index 4b6575f..7087975 100644
--- a/src/jrummikub/util/Event2.java
+++ b/src/jrummikub/util/Event2.java
@@ -14,9 +14,15 @@ public class Event2<T1, T2> implements IEvent2<T1, T2> {
 	private HashSet<IListener2<T1, T2>> listeners = new HashSet<IListener2<T1, T2>>();
 
 	@Override
-	public Connection add(IListener2<T1, T2> listener) {
+	public Connection add(final IListener2<T1, T2> listener) {
 		listeners.add(listener);
-		return null;
+	    return new Connection() {
+			
+			@Override
+			public void remove() {
+				Event2.this.remove(listener);
+			}
+		};
 	}
 
 	@Override
-- 
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