Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/AbstractRemover.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/AbstractRemover.java
new file mode 100644 (file)
index 0000000..9fcee02
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/AbstractRemover.java
@@ -0,0 +1,55 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in 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
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.db.layer0.adapter.impl;\r
+\r
+import java.util.Map;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.adapter.Remover;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public abstract class AbstractRemover implements Remover {\r
+\r
+    protected final Resource resource;\r
+\r
+    public AbstractRemover(Resource resource) {\r
+        this.resource = resource;\r
+    }\r
+\r
+    protected String consultPossibleCanRemove(ReadGraph graph, Resource r, Map<Object, Object> aux) throws DatabaseException {\r
+        Remover remover = graph.getPossibleAdapter(r, Remover.class);\r
+        if (remover != null) {\r
+            return remover.canRemove(graph, aux);\r
+        }\r
+        return null;\r
+    }\r
+\r
+    protected boolean consultPossibleRemover(WriteGraph graph, Resource r) throws DatabaseException {\r
+        Remover remover = graph.getPossibleAdapter(r, Remover.class);\r
+        if (remover != null) {\r
+            remover.remove(graph);\r
+            return true;\r
+        }\r
+        return false;\r
+    }\r
+\r
+    @Override\r
+    public String canRemove(ReadGraph graph, Map<Object, Object> aux) throws DatabaseException {\r
+        return null;\r
+    }\r
+\r
+}\r