jobmediasheets.java

Mobile 应用程序使用 Java Micro Edition (Java ME) 平台

/*
 * @(#)JobMediaSheets.java	1.7 05/11/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package javax.print.attribute.standard;

import javax.print.attribute.Attribute;
import javax.print.attribute.IntegerSyntax;
import javax.print.attribute.PrintRequestAttribute;
import javax.print.attribute.PrintJobAttribute;

/**
 * Class JobMediaSheets is an integer valued printing attribute class that 
 * specifies the total number of media sheets to be produced for this job. 
 * <P>
 * The JobMediaSheets attribute describes the size of the job. This attribute is 
 * not intended to be a counter; it is intended to be useful routing and 
 * scheduling information if known. The printer may try to compute the 
 * JobMediaSheets attribute's value if it is not supplied in the Print Request. 
 * Even if the client does supply a value for the JobMediaSheets attribute in 
 * the Print Request, the printer may choose to change the value if the printer 
 * is able to compute a value which is more accurate than the client supplied 
 * value. The printer may be able to determine the correct value for the 
 * JobMediaSheets attribute either right at job submission time or at any later 
 * point in time. 
 * <P>
 * Unlike the {@link JobKOctets JobKOctets} and {@link JobImpressions 
 * JobImpressions} attributes, the JobMediaSheets value must include the 
 * multiplicative factors contributed by the number of copies specified by the 
 * {@link Copies Copies} attribute and a "number of copies" instruction embedded 
 * in the document data, if any. This difference allows the system administrator 
 * to control the lower and upper bounds of both (1) the size of the document(s) 
 * with {@link JobKOctetsSupported JobKOctetsSupported} and {@link 
 * JobImpressionsSupported JobImpressionsSupported} and (2) the size of the job 
 * with {@link JobMediaSheetsSupported JobMediaSheetsSupported}. 
 * <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>
 *
 * @see JobMediaSheetsSupported
 * @see JobMediaSheetsCompleted
 * @see JobKOctets
 * @see JobImpressions
 *
 * @author  Alan Kaminsky
 */
public class JobMediaSheets extends IntegerSyntax
	implements PrintRequestAttribute, PrintJobAttribute {


    private static final long serialVersionUID = 408871131531979741L;

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

    /**
     * Returns whether this job media sheets attribute is equivalent to the 
     * passed in object. To be equivalent, all of the following conditions must 
     * be true: 
     * <OL TYPE=1>
     * <LI>
     * <CODE>object</CODE> is not null.
     * <LI>
     * <CODE>object</CODE> is an instance of class JobMediaSheets.
     * <LI>
     * This job media sheets 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 job media
     *          sheets attribute, false otherwise. 
     */
    public boolean equals(Object object) {
	return super.equals(object) && object instanceof JobMediaSheets;
    }

    /**
     * Get the printing attribute class which is to be used as the "category" 
     * for this printing attribute value.
     * <P>
     * For class JobMediaSheets and any vendor-defined subclasses, the category 
     * is class JobMediaSheets itself. 
     *
     * @return  Printing attribute class (category), an instance of class
     *          {@link java.lang.Class java.lang.Class}.
     */
    public final Class<? extends Attribute> getCategory() {
	return JobMediaSheets.class;
    }

    /**
     * Get the name of the category of which this attribute value is an 
     * instance. 
     * <P>
     * For class JobMediaSheets and any vendor-defined subclasses, the
     * category name is <CODE>"job-media-sheets"</CODE>. 
     *
     * @return  Attribute category name.
     */
    public final String getName() {
	return "job-media-sheets";
    }

}