X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Fprocedure%2Fadapter%2FCacheListener.java;fp=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Fprocedure%2Fadapter%2FCacheListener.java;h=49ba384913da4b247b3ca32f8f98db39f4da81ae;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

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
index 000000000..49ba38491
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/adapter/CacheListener.java
@@ -0,0 +1,59 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.common.procedure.adapter;
+
+import org.simantics.db.procedure.Listener;
+
+/*
+ * Use this listener to ensure caching for a request. This listener will not lock the request in cache.
+ * 
+ */
+final public class CacheListener<T> implements Listener<T> {
+
+    final private ListenerSupport support;
+
+    public CacheListener(ListenerSupport support) {
+        this.support = support;
+    }
+
+    @Override
+    final public void exception(Throwable throwable) {
+        support.exception(throwable);
+    }
+
+    @Override
+    final public boolean isDisposed() {
+        return support.isDisposed();
+    }
+
+    @Override
+    public void execute(T result) {
+    }
+
+    @Override
+    public int hashCode() {
+        return support.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object object) {
+        if (this == object)
+            return true;
+        else if (object == null)
+            return false;
+        else if (CacheListener.class != object.getClass())
+            return false;
+        CacheListener<?> r = (CacheListener<?>)object;
+        return r.support.equals(support);
+    }
+
+}
\ No newline at end of file