bundles/org.simantics.mapping/src/org/simantics/mapping/rule/AndRule.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.mapping.rule;
  13
  14 import gnu.trove.map.hash.TObjectIntHashMap;
  15
  16 import org.simantics.db.Resource;
  17 import org.simantics.mapping.constraint.TooManyUnboundVariablesException;
  18 import org.simantics.mapping.rule.instructions.AndRuleInstruction;
  19 import org.simantics.mapping.rule.instructions.IRuleInstruction;
  20 import org.simantics.utils.datastructures.persistent.ImmutableSet;
  21
  22 public class AndRule implements IRule {
  23
  24         IRule[] rules;
  25
  26         public AndRule(IRule ... rules) {
  27                 this.rules = rules;
  28         }
  29
  30         @Override
  31         public ImmutableSet<Resource> binds() {
  32                 ImmutableSet<Resource> ret = ImmutableSet.empty();
  33                 for(IRule rule : rules)
  34                         ret = ret.addAll(rule.binds());
  35                 return ret;
  36         }
  37
  38         @Override
  39         public IRuleInstruction createInstruction(
  40                         TObjectIntHashMap<Resource> variableIds, ImmutableSet<Resource> bound) throws TooManyUnboundVariablesException {
  41                 IRuleInstruction[] instructions = new IRuleInstruction[rules.length];
  42                 for(int i=0;i<rules.length;++i)
  43                         instructions[i] = rules[i].createInstruction(variableIds, bound);
  44                 return new AndRuleInstruction(instructions);
  45         }
  46
  47 }