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Our JAXB representation of OpenXML, except for pml and sml (handled separately)
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/*
 *  Copyright 2007-2013, Plutext Pty Ltd.
 *   
 *  This file is part of docx4j.

    docx4j is licensed under the Apache License, Version 2.0 (the "License"); 
    you may not use this file except in compliance with the License. 

    You may obtain a copy of the License at 

        http://www.apache.org/licenses/LICENSE-2.0 

    Unless required by applicable law or agreed to in writing, software 
    distributed under the License is distributed on an "AS IS" BASIS, 
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
    See the License for the specific language governing permissions and 
    limitations under the License.

 */


package org.docx4j.wml; 

import java.math.BigInteger;

import javax.xml.bind.Unmarshaller;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
import javax.xml.bind.annotation.XmlType;

import org.jvnet.jaxb2_commons.ppp.Child;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * Java class for anonymous complex type.
 * 
 * 
The following schema fragment specifies the expected content contained within this class.
 * 
 * 
 * <complexType>
 *   <complexContent>
 *     <restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
 *       <attribute name="val" use="required">
 *         <simpleType>
 *           <restriction base="{http://www.w3.org/2001/XMLSchema}integer">
 *           </restriction>
 *         </simpleType>
 *       </attribute>
 *     </restriction>
 *   </complexContent>
 * </complexType>
 * 
 * 
 * 
 */
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "")
@XmlRootElement(name = "id")
public class Id implements Child
{

	private static Logger log = LoggerFactory.getLogger(Id.class);
	
    @XmlAttribute(name = "val", namespace = "http://schemas.openxmlformats.org/wordprocessingml/2006/main", required = true)
    protected BigInteger val;
    @XmlTransient
    private Object parent;

    /**
     * Gets the value of the val property.
     * 
     * @return
     *     possible object is
     *     {@link BigInteger }
     *     
     */
    public BigInteger getVal() {
        return val;
    }

    /**
     * Sets the value of the val property.
     * 
     * @param value
     *     allowed object is
     *     {@link BigInteger }
     *     
     */
    public void setVal(BigInteger value) {
        this.val = value;
    }

    /**
     * Gets the parent object in the object tree representing the unmarshalled xml document.
     * 
     * @return
     *     The parent object.
     */
    public Object getParent() {
        return this.parent;
    }

    public void setParent(Object parent) {
        this.parent = parent;
    }

    /**
     * This method is invoked by the JAXB implementation on each instance when unmarshalling completes.
     * 
     * @param parent
     *     The parent object in the object tree.
     * @param unmarshaller
     *     The unmarshaller that generated the instance.
     */
    public void afterUnmarshal(Unmarshaller unmarshaller, Object parent) {
        setParent(parent);
    }

    public boolean equals(Object obj) {
    	if (obj instanceof Id) {
	    		return val.equals( ((Id)obj).getVal() ); 
	    	} else {
	    		return false;
	    	}
	    }
	   
	    public int hashCode() {
	    	
	    	if (val==null) {
	    		
	        	java.math.BigInteger newIdVal = java.math.BigInteger.valueOf(Math.abs(new java.util.Random().nextInt()));
	        	this.setVal( newIdVal );
    			log.warn("Generated Id val " + newIdVal);
	    		
	    	}
	    	
	    	// Natural and good enough...
    		return val.intValue();
	    }
        
    
    
}