/*
 * @(#)OrQueryExp.java	4.17 03/12/19
 * 
 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package javax.management;



/**
 * This class is used by the query-building mechanism to represent
 * disjunctions of relational expressions.
 * @serial include
 *
 * @since 1.5
 */
class OrQueryExp extends QueryEval implements QueryExp {

    /* Serial version */
    private static final long serialVersionUID = 2962973084421716523L;

    /** 
     * @serial The left query expression
     */
    private QueryExp exp1;

    /** 
     * @serial The right query expression
     */
    private QueryExp exp2;

    
    /**
     * Basic Constructor.
     */    
    public OrQueryExp() {
    }
    
    /**
     * Creates a new OrQueryExp with the specified ValueExps 
     */
    public OrQueryExp(QueryExp q1, QueryExp q2) {
	exp1 = q1;
	exp2 = q2;
    }


    /**
     * Returns the left query expression.
     */    
    public QueryExp getLeftExp() {
	return exp1;
    }

    /**
     * Returns the right query expression.
     */    
    public QueryExp getRightExp() {
	return exp2;
    }
      
    /**
     * Applies the OrQueryExp on a MBean.
     *
     * @param name The name of the MBean on which the OrQueryExp will be applied.
     *
     * @return  True if the query was successfully applied to the MBean, false otherwise.
     *
     *
     * @exception BadStringOperationException The string passed to the method is invalid. 
     * @exception BadBinaryOpValueExpException The expression passed to the method is invalid.
     * @exception BadAttributeValueExpException The attribute value passed to the method is invalid.
     */    
    public boolean apply(ObjectName name) throws BadStringOperationException,
	BadBinaryOpValueExpException, BadAttributeValueExpException, 
	InvalidApplicationException {
	return exp1.apply(name) || exp2.apply(name);
    }
    
    /**
     * Returns a string representation of this AndQueryExp
     */    
    public String toString() {
	return "(" + exp1 + ") or (" + exp2 + ")";
    }
}