X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Fprimitiverequest%2FPossibleUniqueAdapter.java;fp=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Fprimitiverequest%2FPossibleUniqueAdapter.java;h=2330054e3c1db764e9ab86bc6ec3f06b0c061cda;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/primitiverequest/PossibleUniqueAdapter.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/primitiverequest/PossibleUniqueAdapter.java
new file mode 100644
index 000000000..2330054e3
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/primitiverequest/PossibleUniqueAdapter.java
@@ -0,0 +1,63 @@
+/*******************************************************************************
+ * 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.primitiverequest;
+
+import org.simantics.db.AsyncReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.procedure.AsyncProcedure;
+import org.simantics.db.request.AsyncRead;
+
+final public class PossibleUniqueAdapter<T> implements AsyncRead<T> {
+
+	final private Resource resource;
+    final private Class<T> clazz;
+    
+    @Override
+    public int hashCode() {
+        return resource.hashCode() + 31 * clazz.hashCode();
+    }
+    
+    @Override
+    public boolean equals(Object object) {
+        if (this == object)
+            return true;
+        else if (object == null)
+            return false;
+        else if (getClass() != object.getClass())
+            return false;
+        PossibleUniqueAdapter<?> r = (PossibleUniqueAdapter<?>)object;
+        return resource.equals(r.resource) && clazz.equals(r.clazz);
+    }
+
+    @Override
+    public int threadHash() {
+    	return hashCode();
+    }
+
+    @Override
+    public int getFlags() {
+        return 0;
+    }
+    
+    public PossibleUniqueAdapter(Resource resource, Class<T> clazz) {
+        this.resource = resource;
+        this.clazz = clazz;
+    }
+
+    @Override
+    public void perform(AsyncReadGraph graph, AsyncProcedure<T> procedure) {
+        
+        graph.forPossibleUniqueAdapted(resource, clazz, procedure);
+        
+    }
+
+}