queuedjobcount.java

java jdk 1.4的源码

/*
 * @(#)QueuedJobCount.java	1.4 03/01/23
 *
 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package javax.print.attribute.standard;

import javax.print.attribute.IntegerSyntax;
import javax.print.attribute.PrintServiceAttribute;

/**
 * Class QueuedJobCount is an integer valued printing attribute that indicates 
 * the number of jobs in the printer whose {@link JobState JobState} is either 
 * PENDING, PENDING_HELD, PROCESSING, or PROCESSING_STOPPED. 
 * <P>
 * <B>IPP Compatibility:</B> The integer value gives the IPP integer value.
 * The category name returned by <CODE>getName()</CODE> gives the IPP
 * attribute name. 
 * <P>
 *
 * @author  Alan Kaminsky
 */
public final class QueuedJobCount extends IntegerSyntax
    implements PrintServiceAttribute {

    /**
     * Construct a new queued job count attribute with the given integer
     * value. 
     *
     * @param  value  Integer value.
     *
     * @exception  IllegalArgumentException
     *   (Unchecked exception) Thrown if <CODE>value</CODE> is less than 0.
     */
    public QueuedJobCount(int value) {
	super (value, 0, Integer.MAX_VALUE);
    }

    /**
     * Returns whether this queued job count attribute is equivalent to the 
     * passed in object. To be equivalent, all of the following conditions  
     * mus  be true: 
     * <OL TYPE=1>
     * <LI>
     * <CODE>object</CODE> is not null.
     * <LI>
     * <CODE>object</CODE> is an instance of class QueuedJobCount.
     * <LI>
     * This queued job count attribute's value and <CODE>object</CODE>'s 
     * value are equal. 
     * </OL>
     *
     * @param  object  Object to compare to.
     *
     * @return  True if <CODE>object</CODE> is equivalent to this queued job
     *          count attribute, false otherwise. 
     */
    public boolean equals(Object object) {
	return (super.equals (object) &&
	       object instanceof QueuedJobCount);
    }

    /**
     * Get the printing attribute class which is to be used as the "category" 
     * for this printing attribute value.
     * <P>
     * For class QueuedJobCount, the category is class QueuedJobCount itself. 
     *
     * @return  Printing attribute class (category), an instance of class
     *          {@link java.lang.Class java.lang.Class}.
     */
    public final Class getCategory() {
	return QueuedJobCount.class;
    }

    /**
     * Get the name of the category of which this attribute value is an 
     * instance. 
     * <P>
     * For class QueuedJobCount, the
     * category name is <CODE>"queued-job-count"</CODE>. 
     *
     * @return  Attribute category name.
     */
    public final String getName() {
	return "queued-job-count";
    }

}