SelectClauseElement.java

/**************************************************************************************
 * 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.Serializable;
import java.io.StringWriter;

/**
 * Item in a select-clause to describe individual select-clause expressions or wildcard(s).
 */
public interface SelectClauseElement extends Serializable
{
    /**
     * Output the string rendering of the select clause element.
     * @param writer to output to
     */
    public void toEPLElement(StringWriter writer);
}