X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.utils.datastructures%2Fsrc%2Forg%2Fsimantics%2Futils%2Fdatastructures%2Fcontext%2FIContextListener.java;fp=bundles%2Forg.simantics.utils.datastructures%2Fsrc%2Forg%2Fsimantics%2Futils%2Fdatastructures%2Fcontext%2FIContextListener.java;h=24bd8a72d3f778acc248927845bcdf768f282b51;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/context/IContextListener.java b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/context/IContextListener.java
new file mode 100644
index 000000000..24bd8a72d
--- /dev/null
+++ b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/context/IContextListener.java
@@ -0,0 +1,35 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * 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:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+/*
+ *
+ * @author Toni Kalajainen
+ */
+package org.simantics.utils.datastructures.context;
+
+
+public interface IContextListener<E> {
+
+	/**
+	 * T has been added to the context
+	 * @param sender context
+	 * @param item
+	 */
+	void itemAdded(IContext<E> sender, E item);
+	
+	/**
+	 * T has been removed from the stack
+	 * @param sender context
+	 * @param item
+	 */
+	void itemRemoved(IContext<E> sender, E item);
+	
+}