/*
 * @(#)BinaryOpValueExp.java	4.18 05/11/17
 * 
 * Copyright 2006 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 binary
 * operations.
 * @serial include
 *
 * @since 1.5
 */
class BinaryOpValueExp extends QueryEval implements ValueExp { 
    
    /* Serial version */
    private static final long serialVersionUID = 1216286847881456786L;

    /** 
     * @serial The operator 
     */
    private int op;
    
    /** 
     * @serial The first value 
     */
    private ValueExp exp1;

    /** 
     * @serial The second value 
     */
    private ValueExp exp2;


    /**
     * Basic Constructor.
     */
    public BinaryOpValueExp() { 
    } 

    /**
     * Creates a new BinaryOpValueExp using operator o applied on v1 and
     * v2 values.
     */
    public BinaryOpValueExp(int o, ValueExp v1, ValueExp v2) { 
	op   = o;
	exp1 = v1;
	exp2 = v2;
    } 


    /**
     * Returns the operator of the value expression.
     */
    public int getOperator()  { 
	return op;
    } 
    
    /**
     * Returns the left value of the value expression.
     */
    public ValueExp getLeftValue()  { 
	return exp1;
    } 
   
    /**
     * Returns the right value of the value expression.
     */    
    public ValueExp getRightValue()  { 
	return exp2;
    } 

    /**
     * Applies the BinaryOpValueExp on a MBean.
     *
     * @param name The name of the MBean on which the BinaryOpValueExp will be applied.
     *
     * @return  The ValueExp.
     *
     * @exception BadStringOperationException
     * @exception BadBinaryOpValueExpException
     * @exception BadAttributeValueExpException 
     * @exception InvalidApplicationException
     */
    public ValueExp apply(ObjectName name) throws BadStringOperationException, BadBinaryOpValueExpException,
	BadAttributeValueExpException, InvalidApplicationException  { 
	ValueExp val1 = exp1.apply(name);
	ValueExp val2 = exp2.apply(name);
	String sval1;
	String sval2;
	double dval1;
	double dval2;
	long   lval1;
	long   lval2;
	boolean numeric = val1 instanceof NumericValueExp;