Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.common / src / org / simantics / db / common / procedure / adapter / CacheListener.java

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/adapter/CacheListener.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/adapter/CacheListener.java
new file mode 100644 (file)
index 0000000..49ba384
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/adapter/CacheListener.java
@@ -0,0 +1,59 @@
+/*******************************************************************************\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.adapter;\r
+\r
+import org.simantics.db.procedure.Listener;\r
+\r
+/*\r
+ * Use this listener to ensure caching for a request. This listener will not lock the request in cache.\r
+ * \r
+ */\r
+final public class CacheListener<T> implements Listener<T> {\r
+\r
+    final private ListenerSupport support;\r
+\r
+    public CacheListener(ListenerSupport support) {\r
+        this.support = support;\r
+    }\r
+\r
+    @Override\r
+    final public void exception(Throwable throwable) {\r
+        support.exception(throwable);\r
+    }\r
+\r
+    @Override\r
+    final public boolean isDisposed() {\r
+        return support.isDisposed();\r
+    }\r
+\r
+    @Override\r
+    public void execute(T result) {\r
+    }\r
+\r
+    @Override\r
+    public int hashCode() {\r
+        return support.hashCode();\r
+    }\r
+\r
+    @Override\r
+    public boolean equals(Object object) {\r
+        if (this == object)\r
+            return true;\r
+        else if (object == null)\r
+            return false;\r
+        else if (CacheListener.class != object.getClass())\r
+            return false;\r
+        CacheListener<?> r = (CacheListener<?>)object;\r
+        return r.support.equals(support);\r
+    }\r
+\r
+}
\ No newline at end of file