/*
 * @(#)AndQueryExp.java	4.19 04/02/10
 * 
 * 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 conjunctions
 * of relational expressions.
 * @serial include
 *
 * @since 1.5
 */
class AndQueryExp extends QueryEval implements QueryExp { 
   
    /* Serial version */
    private static final long serialVersionUID = -1081892073854801359L;

    /** 
     * @serial The first QueryExp of the conjunction 
     */
    private QueryExp exp1;

    /** 
     * @serial The second QueryExp of the conjunction 
     */
    private QueryExp exp2;


    /**
     * Default constructor.
     */
    public AndQueryExp() { 
    } 

    /**
     * Creates a new AndQueryExp with q1 and q2 QueryExp.
     */
    public AndQueryExp(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 AndQueryExp on a MBean.
     *
     * @param name The name of the MBean on which the AndQueryExp 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.
     * @exception InvalidApplicationException  An attempt has been made to apply a subquery expression to a 
     * managed object or a qualified attribute expression to a managed object of the wrong class.
     */
    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 + ") and (" + exp2 + ")";
   }
   
 }