1 files changed, 21 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/api/scope/IInstanceObserver.java b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/api/scope/IInstanceObserver.java
new file mode 100644
index 00000000..8ef29cbe
--- /dev/null
+++ b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/api/scope/IInstanceObserver.java
@@ -0,0 +1,21 @@
+/*******************************************************************************

+ * Copyright (c) 2010-2014, Bergmann Gabor, Istvan Rath and Daniel Varro

+ * This program and the accompanying materials are made available under the

+ * terms of the Eclipse Public License v. 2.0 which is available at

+ * http://www.eclipse.org/legal/epl-v20.html.

+ * 

+ * SPDX-License-Identifier: EPL-2.0

+ *******************************************************************************/

+package tools.refinery.viatra.runtime.api.scope;

+

+

+/**

+ * Listener interface for lightweight observation of changes in edges leaving from given source instance elements.

+ * @author Bergmann Gabor

+ * @since 0.9

+ *

+ */

+public interface IInstanceObserver {

+    void notifyBinaryChanged(Object sourceElement, Object edgeType);

+    void notifyTernaryChanged(Object sourceElement, Object edgeType);

+}