/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2000 The Apache Software Foundation.  All rights 
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
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 *    distribution.
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 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:  
 *       "This product includes software developed by the 
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Ant", and "Apache Software
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 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */
package org.apache.tools.ant.taskdefs.optional.depend.constantpool;

import java.io.IOException;
import java.io.DataInputStream;
import java.io.DataOutputStream;

/**
 * The constant pool entry subclass used to represent double constant values.
 * 
 * @author Conor MacNeill
 */
public class DoubleCPInfo extends ConstantCPInfo {
    public DoubleCPInfo() {
        super(CONSTANT_Double, 2);
    }

    /**
     * read a constant pool entry from a class stream.
     * 
     * @param cpStream the DataInputStream which contains the constant pool entry to be read.
     * 
     * @throws IOException if there is a problem reading the entry from the stream.
     */
    public void read(DataInputStream cpStream) throws IOException {
        setValue(new Double(cpStream.readDouble()));
    } 

    /**
     * Print a readable version of the constant pool entry.
     * 
     * @return the string representation of this constant pool entry.
     */
    public String toString() {
        return "Double Constant Pool Entry: " + getValue();
    } 

}