bundles/org.simantics.mapping/src/org/simantics/mapping/rule/AndRule.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.mapping.rule;\r
  13 \r
  14 import gnu.trove.map.hash.TObjectIntHashMap;\r
  15 \r
  16 import org.simantics.db.Resource;\r
  17 import org.simantics.mapping.constraint.TooManyUnboundVariablesException;\r
  18 import org.simantics.mapping.rule.instructions.AndRuleInstruction;\r
  19 import org.simantics.mapping.rule.instructions.IRuleInstruction;\r
  20 import org.simantics.utils.datastructures.persistent.ImmutableSet;\r
  21 \r
  22 public class AndRule implements IRule {\r
  23 \r
  24         IRule[] rules;  \r
  25         \r
  26         public AndRule(IRule ... rules) {\r
  27                 this.rules = rules;\r
  28         }\r
  29 \r
  30         @Override\r
  31         public ImmutableSet<Resource> binds() {\r
  32                 ImmutableSet<Resource> ret = ImmutableSet.empty();\r
  33                 for(IRule rule : rules)\r
  34                         ret = ret.addAll(rule.binds());\r
  35                 return ret;\r
  36         }\r
  37 \r
  38         @Override\r
  39         public IRuleInstruction createInstruction(\r
  40                         TObjectIntHashMap<Resource> variableIds, ImmutableSet<Resource> bound) throws TooManyUnboundVariablesException {\r
  41                 IRuleInstruction[] instructions = new IRuleInstruction[rules.length];\r
  42                 for(int i=0;i<rules.length;++i)\r
  43                         instructions[i] = rules[i].createInstruction(variableIds, bound);\r
  44                 return new AndRuleInstruction(instructions);\r
  45         }\r
  46 \r
  47 }\r