/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
***************************************************************************************
*/
package com.espertech.esper.client.soda;
import java.io.StringWriter;
/**
* Pattern 'every' expression that controls the lifecycle of pattern sub-expressions.
*/
public class PatternEveryExpr extends PatternExprBase {
private static final long serialVersionUID = 6325304538100271837L;
/**
* Ctor - for use to create a pattern expression tree, without pattern child expression.
*/
public PatternEveryExpr() {
}
/**
* Ctor.
*
* @param inner is the pattern expression to control lifecycle on
*/
public PatternEveryExpr(PatternExpr inner) {
addChild(inner);
}
public PatternExprPrecedenceEnum getPrecedence() {
return PatternExprPrecedenceEnum.EVERY_NOT;
}
public void toPrecedenceFreeEPL(StringWriter writer, EPStatementFormatter formatter) {
writer.write("every ");
PatternExprPrecedenceEnum precedence = getPrecedence();
if (this.getChildren().get(0) instanceof PatternEveryExpr) {
precedence = PatternExprPrecedenceEnum.MAXIMIM;
}
this.getChildren().get(0).toEPL(writer, precedence, formatter);
}
}