bundles/org.simantics.db.common/src/org/simantics/db/common/adaption/SimpleAdapter.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.adaption;
  13
  14 import org.simantics.db.AsyncReadGraph;
  15 import org.simantics.db.ReadGraph;
  16 import org.simantics.db.Resource;
  17 import org.simantics.db.adaption.Adapter;
  18 import org.simantics.db.exception.DatabaseException;
  19 import org.simantics.db.procedure.AsyncProcedure;
  20 import org.simantics.db.request.Read;
  21
  22 public abstract class SimpleAdapter<T> implements Adapter<T, Resource> {
  23
  24     public abstract T adapt(ReadGraph g, Resource r) throws DatabaseException;
  25
  26     @Override
  27     public void adapt(AsyncReadGraph g, final Resource source, final Resource r, AsyncProcedure<T> procedure) {
  28
  29         //System.out.println("SimpleAdapter.adapt" + this.getClass());
  30
  31         g.asyncRequest(new Read<T>() {
  32
  33             @Override
  34             public T perform(ReadGraph graph) throws DatabaseException {
  35                 //System.out.println("SimpleAdapter.perform" + this.getClass());
  36                 return adapt(graph, r);
  37             }
  38
  39         }, procedure);
  40
  41     }
  42
  43 }