jobprioritysupported.java

java jdk 1.4的源码

/*
 * @(#)JobPrioritySupported.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.SupportedValuesAttribute;

/**
 * Class JobPrioritySupported is an integer valued printing attribute class 
 * that specifies whether a Print Service instance supports the {@link 
 * JobPriority JobPriority} attribute and the number of different job priority 
 * levels supported. 
 * <P>
 * The client can always specify any {@link JobPriority JobPriority} value 
 * from 1 to 100 for a job. However, the Print Service instance may support
 * fewer than 100 different job priority levels. If this is the case, the 
 * Print Service instance automatically maps the client-specified job priority 
 * value to one of the supported job priority levels, dividing the 100 job 
 * priority values equally among the available job priority levels. 
 * <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 JobPrioritySupported extends IntegerSyntax
    implements SupportedValuesAttribute {

    /**
     * Construct a new job priority supported attribute with the given integer 
     * value. 
     *
     * @param  value  Number of different job priority levels supported.
     *
     * @exception  IllegalArgumentException
     *     (Unchecked exception) Thrown if <CODE>value</CODE> is less than 1
     *     or greater than 100.
     */
    public JobPrioritySupported(int value) {
	super (value, 1, 100);
    }
        
    /**
     * Returns whether this job priority supported 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 JobPrioritySupported.
     * <LI>
     * This job priority supported 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
     *          priority supported attribute, false otherwise. 
     */
    public boolean equals (Object object) {

	return (super.equals(object) &&
	       object instanceof JobPrioritySupported);
    }
    
    
    /**
     * Get the printing attribute class which is to be used as the "category" 
     * for this printing attribute value.
     * <P>
     * For class JobPrioritySupported, the 
     * category is class JobPrioritySupported itself. 
     *
     * @return  Printing attribute class (category), an instance of class
     *          {@link java.lang.Class java.lang.Class}.
     */
    public final Class getCategory() {
	return JobPrioritySupported.class;
    }
    
    /**
     * Get the name of the category of which this attribute value is an 
     * instance. 
     * <P>
     * For class JobPrioritySupported, the 
     * category name is <CODE>"job-priority-supported"</CODE>. 
     *
     * @return  Attribute category name.
     */
    public final String getName() {
	return "job-priority-supported";
    }
    
}