Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.layer0.utils / src / org / simantics / layer0 / utils / queries / QueryExecutor2.java

diff --git a/bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/queries/QueryExecutor2.java b/bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/queries/QueryExecutor2.java
new file mode 100644 (file)
index 0000000..90c2330
--- /dev/null
+++ b/bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/queries/QueryExecutor2.java
@@ -0,0 +1,84 @@
+/*******************************************************************************\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.layer0.utils.queries;\r
+\r
+import org.simantics.db.AsyncReadGraph;\r
+import org.simantics.db.RequestProcessor;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.common.procedure.adapter.AsyncMultiProcedureAdapter;\r
+import org.simantics.db.common.request.ReadRequest;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.procedure.AsyncListener;\r
+import org.simantics.db.procedure.AsyncMultiProcedure;\r
+import org.simantics.db.request.AsyncMultiRead;\r
+\r
+@Deprecated\r
+public abstract class QueryExecutor2 extends ReadRequest implements AsyncListener<Object> {\r
+\r
+//     Object DUMMY = new Object();\r
+//     \r
+//     @Override\r
+//     public void perform(SyncReadGraph graph,\r
+//             SingleQueryProcedure4<Object> procedure) {\r
+//             doPerform(graph);\r
+//             procedure.execute(graph, DUMMY);\r
+//             \r
+//     }\r
+       \r
+//     protected abstract void doPerform(SyncReadGraph g);\r
+       \r
+       @Override\r
+       public void execute(AsyncReadGraph graph, Object result) {\r
+       }\r
+\r
+       public void execute(WriteGraph graph) throws DatabaseException {\r
+               graph.syncRequest(QueryExecutor2.this, QueryExecutor2.this);\r
+       }\r
+\r
+       public void execute(RequestProcessor processor) throws DatabaseException {\r
+               \r
+               AsyncMultiRead<Object> request = new AsyncMultiRead<Object>() {\r
+\r
+                       @Override\r
+                       public int threadHash() {\r
+                               return hashCode();\r
+                       }\r
+                       \r
+                       @Override\r
+                       public void perform(AsyncReadGraph graph,\r
+                                       AsyncMultiProcedure<Object> callback) {\r
+                               graph.asyncRequest(QueryExecutor2.this, QueryExecutor2.this);\r
+                               callback.finished(graph);\r
+                       }\r
+                       \r
+               }; \r
+               \r
+               AsyncMultiProcedureAdapter<Object> procedure = new AsyncMultiProcedureAdapter<Object>() {\r
+\r
+                       @Override\r
+                       public void exception(AsyncReadGraph graph, Throwable t) {\r
+                               t.printStackTrace();\r
+                       }\r
+                       \r
+               }; \r
+               \r
+               if(processor instanceof WriteGraph) processor.syncRequest(request, procedure);\r
+               else processor.asyncRequest(request, procedure);\r
+               \r
+       }\r
+\r
+       @Override\r
+       public void exception(AsyncReadGraph graph, Throwable t) {\r
+               t.printStackTrace();\r
+       }\r
+       \r
+}\r