/*
***************************************************************************************
* 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;
/**
* Parameter expression for use in crontab expressions and representing a range.
*/
public class CrontabRangeExpression extends ExpressionBase {
private static final long serialVersionUID = -6078090679603607493L;
/**
* Ctor.
*/
public CrontabRangeExpression() {
}
/**
* Ctor.
*
* @param lowerBounds provides lower bounds
* @param upperBounds provides upper bounds
*/
public CrontabRangeExpression(Expression lowerBounds, Expression upperBounds) {
this.getChildren().add(lowerBounds);
this.getChildren().add(upperBounds);
}
public ExpressionPrecedenceEnum getPrecedence() {
return ExpressionPrecedenceEnum.UNARY;
}
public void toPrecedenceFreeEPL(StringWriter writer) {
this.getChildren().get(0).toEPL(writer, ExpressionPrecedenceEnum.MINIMUM);
writer.append(":");
this.getChildren().get(1).toEPL(writer, ExpressionPrecedenceEnum.MINIMUM);
}
}