Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / adapter / impl / FailingRemover.java

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/FailingRemover.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/FailingRemover.java
new file mode 100644 (file)
index 0000000..9df4966
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/FailingRemover.java
@@ -0,0 +1,42 @@
+/*******************************************************************************\r
+ * Copyright (c) 2013 Association for Decentralized Information Management in\r
+ * Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     Semantum Oy - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.db.layer0.adapter.impl;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.adapter.Remover;\r
+\r
+/**\r
+ * A {@link Remover} implementation that never allows removal. It uses the\r
+ * provided String as a reason for not allowing removal in\r
+ * {@link #canRemove(ReadGraph, java.util.Map)}\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class FailingRemover implements Remover {\r
+\r
+       String reason;\r
+\r
+       public FailingRemover(String reason) throws DatabaseException {\r
+               this.reason = reason;\r
+       }\r
+\r
+       public String canRemove(ReadGraph graph, java.util.Map<Object,Object> aux) {\r
+               return reason;\r
+       };\r
+\r
+       @Override\r
+       public void remove(WriteGraph graph) throws DatabaseException {\r
+       }\r
+\r
+}\r