numberofdocuments.java

java jdk 1.4的源码

/*
 * @(#)NumberOfDocuments.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.PrintJobAttribute;

/**
 * Class NumberOfDocuments is an integer valued printing attribute that 
 * indicates the number of individual docs the printer has accepted for this 
 * job, regardless of whether the docs' print data has reached the printer or 
 * not. 
 * <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 NumberOfDocuments extends IntegerSyntax 
    implements PrintJobAttribute {

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

    /**
     * Returns whether this number of documents 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 NumberOfDocuments.
     * <LI>
     * This number of documents 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 number of
     *          documents attribute, false otherwise. 
     */
    public boolean equals(Object object) {
	return (super.equals (object) &&
		object instanceof NumberOfDocuments);
    }

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

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