/*
* *************************************************************************************
* Copyright (C) 2008 EsperTech, Inc. All rights reserved. *
* http://esper.codehaus.org *
* 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;
/**
* Frequency expression for use in crontab expressions.
*/
public class CrontabFrequencyExpression extends ExpressionBase
{
private static final long serialVersionUID = -5781607347729616944L;
/**
* Ctor.
*/
public CrontabFrequencyExpression()
{
}
/**
* Ctor.
* @param numericParameter the frequency value
*/
public CrontabFrequencyExpression(Expression numericParameter)
{
this.getChildren().add(numericParameter);
}
public ExpressionPrecedenceEnum getPrecedence()
{
return ExpressionPrecedenceEnum.UNARY;
}
public void toPrecedenceFreeEPL(StringWriter writer)
{
writer.append("*/");
this.getChildren().get(0).toEPL(writer, ExpressionPrecedenceEnum.MINIMUM);
}
}