ExprConstantNode.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.epl.expression;

/**
 * Represents a constant in an expressiun tree.
 */
public interface ExprConstantNode extends ExprNode, ExprEvaluator
{
    public Class getType();
    public Object getValue();
    public boolean isConstantValue();
}