bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/TypeHierarchy.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.impl.query;
  13
  14 import org.simantics.db.exception.DatabaseException;
  15 import org.simantics.db.impl.graph.ReadGraphImpl;
  16 import org.simantics.db.impl.procedure.InternalProcedure;
  17 import org.simantics.db.procedure.ListenerBase;
  18
  19 import gnu.trove.procedure.TIntProcedure;
  20
  21 final public class TypeHierarchy extends UnaryQueryP<IntSet> {
  22
  23     TypeHierarchy(final int resource) {
  24         super(resource);
  25     }
  26
  27     final public static void queryEach(ReadGraphImpl graph, final int r, final QueryProcessor provider, final CacheEntry parent, final ListenerBase listener, final InternalProcedure<IntSet> procedure) throws DatabaseException {
  28         QueryCache.runnerTypeHierarchy(graph, r, parent, listener, procedure);
  29     }
  30
  31         @Override
  32         final public void removeEntry(QueryProcessor provider) {
  33                 provider.cache.remove(this);
  34         }
  35
  36         @Override
  37         public void compute(final ReadGraphImpl graph, final InternalProcedure<IntSet> procedure) throws DatabaseException {
  38             computeForEach(graph, id, this, procedure);
  39         }
  40
  41         public static IntSet computeForEach(ReadGraphImpl graph, int id, TypeHierarchy entry, final InternalProcedure<IntSet> procedure_) throws DatabaseException {
  42
  43            InternalProcedure<IntSet> procedure = entry != null ? entry : procedure_;
  44
  45                 QueryProcessor processor = graph.processor;
  46
  47         final IntSet result = new IntSet(processor.querySupport, id);
  48
  49         final TIntProcedure addToResult = new TIntProcedure() {
  50             @Override
  51             public boolean execute(int r) {
  52                 result.add(r);
  53                 return true;
  54             }
  55         };
  56
  57         QueryCache.runnerSuperTypes(graph, id, entry, null, new InternalProcedure<IntSet>() {
  58
  59                 @Override
  60                 public void execute(ReadGraphImpl graph, IntSet types) throws DatabaseException {
  61                         types.forEach(addToResult);
  62                         procedure.execute(graph, result);
  63                 }
  64
  65                 @Override
  66                 public void exception(ReadGraphImpl graph, Throwable t) throws DatabaseException {
  67                         procedure.exception(graph, t);
  68                 }
  69
  70         });
  71
  72         if(entry != null) entry.performFromCache(graph, procedure_);
  73
  74         return result;
  75
  76     }
  77
  78     @Override
  79     public String toString() {
  80         return "TypeHierarchy[" + id + "]";
  81     }
  82
  83 }