1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.mapping.rule;
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14 import gnu.trove.map.hash.TObjectIntHashMap;
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16 import org.simantics.db.Resource;
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17 import org.simantics.mapping.constraint.IConstraint;
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18 import org.simantics.mapping.constraint.TooManyUnboundVariablesException;
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19 import org.simantics.mapping.constraint.instructions.IInstruction;
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20 import org.simantics.mapping.rule.instructions.IRuleInstruction;
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21 import org.simantics.mapping.rule.instructions.UnlessRuleInstruction;
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22 import org.simantics.utils.datastructures.persistent.ImmutableSet;
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24 public class UnlessRule implements IRule {
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26 IConstraint condition;
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29 public UnlessRule(IConstraint condition, IRule rule) {
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30 this.condition = condition;
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35 public ImmutableSet<Resource> binds() {
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36 return condition.binds().addAll(rule.binds());
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40 public IRuleInstruction createInstruction(
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41 TObjectIntHashMap<Resource> variableIds,
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42 ImmutableSet<Resource> bound) throws TooManyUnboundVariablesException {
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43 IInstruction conditionInstruction =
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44 condition.createInstruction(variableIds, bound);
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45 bound = bound.addAll(condition.binds());
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46 return new UnlessRuleInstruction(conditionInstruction,
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47 rule.createInstruction(variableIds, bound));
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