bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/wrapper/SyncToAsyncMultiListener.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.db.common.procedure.wrapper;
  13
  14 import org.simantics.db.AsyncReadGraph;
  15 import org.simantics.db.ReadGraph;
  16 import org.simantics.db.common.request.ReadRequest;
  17 import org.simantics.db.exception.DatabaseException;
  18 import org.simantics.db.procedure.AsyncMultiListener;
  19 import org.simantics.db.procedure.SyncMultiListener;
  20
  21 final public class SyncToAsyncMultiListener<T> implements AsyncMultiListener<T> {
  22
  23         final private SyncMultiListener<T> procedure;
  24
  25         public SyncToAsyncMultiListener(SyncMultiListener<T> procedure) {
  26                 this.procedure = procedure;
  27         }
  28
  29         @Override
  30         final public void execute(AsyncReadGraph graph, final T result) {
  31                 graph.asyncRequest(new ReadRequest() {
  32
  33                         @Override
  34                         public void run(ReadGraph graph) throws DatabaseException {
  35                                 procedure.execute(graph, result);
  36                         }
  37
  38                 });
  39         }
  40
  41         @Override
  42         final public void finished(AsyncReadGraph graph) {
  43                 graph.asyncRequest(new ReadRequest() {
  44
  45                         @Override
  46                         public void run(ReadGraph graph) throws DatabaseException {
  47                                 procedure.finished(graph);
  48                         }
  49
  50                 });
  51         }
  52
  53         @Override
  54         final public void exception(AsyncReadGraph graph, final Throwable t) {
  55         graph.asyncRequest(new ReadRequest() {
  56
  57             @Override
  58             public void run(ReadGraph graph) throws DatabaseException {
  59                 procedure.exception(graph, t);
  60             }
  61
  62         });
  63         }
  64
  65     @Override
  66     public boolean isDisposed() {
  67         return procedure.isDisposed();
  68     }
  69
  70     @Override
  71     public String toString() {
  72         return "SyncToAsyncMultiListener -> " + procedure;
  73    }
  74
  75 }