Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.common / src / org / simantics / db / common / procedure / single / wrapper / ExceptionToNullProcedure.java

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/single/wrapper/ExceptionToNullProcedure.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/single/wrapper/ExceptionToNullProcedure.java
new file mode 100644 (file)
index 0000000..3087416
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/single/wrapper/ExceptionToNullProcedure.java
@@ -0,0 +1,41 @@
+/*******************************************************************************\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.common.procedure.single.wrapper;\r
+\r
+import org.simantics.db.AsyncReadGraph;\r
+import org.simantics.db.procedure.AsyncProcedure;\r
+\r
+final public class ExceptionToNullProcedure<Result> implements AsyncProcedure<Result> {\r
+\r
+       final private AsyncProcedure<Result> procedure;\r
+       \r
+    public ExceptionToNullProcedure(AsyncProcedure<Result> procedure) {\r
+        this.procedure = procedure;\r
+    }\r
+    \r
+    @Override\r
+    public void execute(AsyncReadGraph graph, Result result) {\r
+       procedure.execute(graph, result);\r
+    }\r
+       \r
+    \r
+    @Override\r
+    public void exception(AsyncReadGraph graph, Throwable t) {\r
+       procedure.execute(graph, null);\r
+    }\r
+    \r
+    @Override\r
+    public String toString() {\r
+        return "ExceptionToNullProcedure -> " + procedure;\r
+    }\r
+\r
+}\r