zkoss/zk

/* Binary.java


    Purpose: 
    Description: 
    History:
    2001/10/21 21:32:27, Create, Tom M. Yeh.

Copyright (C) 2001 Potix Corporation. All Rights Reserved.

{{IS_RIGHT
    This program is distributed under LGPL Version 2.1 in the hope that
    it will be useful, but WITHOUT ANY WARRANTY.
}}IS_RIGHT
*/
package org.zkoss.idom;

import org.zkoss.idom.impl.AbstractTextual;

/**
 * The binary item. It is iDOM's extension to W3C/DOM, which allows
 * only String-type value. However, XML files doesn't convey the type
 * information, so, when loading back an XML file, Binary vertices
 * become CData vertices.
 *
 * <p>To be compatible with W3C/DOM utility, it fakes as Text.
 * Thus, getNodeName returns "#text", rather than getName ("#binary").
 *
 * @author tomyeh
 * @see CData
 */
public class Binary extends AbstractTextual
implements org.w3c.dom.Text, Binable {
    /** The value. */
    Object _value;

    /** Constructor.
     */
     public Binary(String value) {
         setValue(value);
     }
    /** Constructor.
     */
     public Binary(Object value) {
         setValue(value);
     }
    /** Constructor.
     */
     public Binary() {
     }

    //-- AbstractTextual extras --//
    protected void checkText(String text) {
    }

    //-- Binable --//
    public final Object getValue() {
        return _value;
    }
    public final void setValue(Object o) {
        _value = o;
    }

    //-- Item --//
    /**
     * Gets the text representation of the value. Never null.
     */
    public final String getText() {
        String s = _value != null ? _value.toString(): null;
        return s != null ? s: "";
    }
    public final void setText(String text) {
        setValue(text);
    }
    public final String getName() {
        return "#binary";
    }

    //-- Node --//
    public final String getNodeName() {
        return "#text"; //fake as TEXT_NODE
    }
    public final short getNodeType() {
        return TEXT_NODE; //fake as TEXT_NODE
    }

    //-- Object --//
    /**
     * Gets the textual representation for debug.
     */
    public String toString() {
        String s = super.toString();
        if (_value == null)
            return s;

        int len = s.length();
        char cc = s.charAt(len - 1);
        return s.substring(0, len - 1) + ' ' + _value.getClass().getName() + cc;
    }
}