Junction.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;

/**
 * Base junction for conjunction (and) and disjunction (or).
 */
public abstract class Junction extends ExpressionBase
{
    private static final long serialVersionUID = -8660058437278023625L;

    /**
     * Expression to add to the conjunction (AND) or disjunction (OR).
     * @param expression to add
     * @return expression
     */
    public Junction add(Expression expression)
    {
        this.getChildren().add(expression);
        return this;
    }

    /**
     * Property to add to the conjunction (AND) or disjunction (OR).
     * @param propertyName is the name of the property
     * @return expression
     */
    public Junction add(String propertyName)
    {
        this.getChildren().add(new PropertyValueExpression(propertyName));
        return this;
    }
}