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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.prelude.semantics.rule;
import java.util.Iterator;
import com.yahoo.prelude.semantics.engine.Choicepoint;
import com.yahoo.prelude.semantics.engine.RuleEvaluation;
/**
* A set of conditions which much match the query in sequence
*
* @author <a href="mailto:bratseth@yahoo-inc.com">Jon S Bratseth</a>
*/
public class SequenceCondition extends CompositeCondition {
public SequenceCondition() {
}
public boolean doesMatch(RuleEvaluation e) {
Choicepoint choicepoint=e.getChoicepoint(this,true);
choicepoint.updateState();
boolean matches=allSubConditionsMatches(e);
if (!matches)
choicepoint.backtrack();
return matches;
}
protected boolean useParentheses() {
return (getParent()!=null
&& ! (getParent() instanceof ChoiceCondition));
}
public String toInnerString() {
return toInnerString(" ");
}
}
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