printerstate.java

JAVA的一些源码 JAVA2 STANDARD EDITION DEVELOPMENT KIT 5.0

/*
 * @(#)PrinterState.java	1.8 04/05/05
 *
 * Copyright 2004 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.EnumSyntax;
import javax.print.attribute.PrintServiceAttribute;

/**
 * Class PrinterState is a printing attribute class, an enumeration, that 
 * identifies the current state of a printer. Class PrinterState defines 
 * standard printer state values. A Print Service implementation only needs 
 * to report those printer states which are appropriate for the particular 
 * implementation; it does not have to report every defined printer state. The 
 * {@link PrinterStateReasons PrinterStateReasons} attribute augments the 
 * PrinterState attribute to give more detailed information about the printer
 * in  given printer state. 
 * <P>
 * <B>IPP Compatibility:</B> The category name returned by 
 * <CODE>getName()</CODE> is the IPP attribute name.  The enumeration's 
 * integer value is the IPP enum value.  The <code>toString()</code> method 
 * returns the IPP string representation of the attribute value.
 * <P>
 *
 * @author  Alan Kaminsky
 */
public final class PrinterState extends EnumSyntax 
implements PrintServiceAttribute {

    private static final long serialVersionUID = -649578618346507718L;

    /**
     * The printer state is unknown.
     */
    public static final PrinterState UNKNOWN = new PrinterState(0);

    /**
     * Indicates that new jobs can start processing without waiting.
     */
    public static final PrinterState IDLE = new PrinterState(3);

    /**
     * Indicates that jobs are processing;
     * new jobs will wait before processing.
     */
    public static final PrinterState PROCESSING = new PrinterState(4);

    /**
     * Indicates that no jobs can be processed and intervention is required.
     */
    public static final PrinterState STOPPED = new PrinterState(5);

    /**
     * Construct a new printer state enumeration value with the given integer 
     * value. 
     *
     * @param  value  Integer value.
     */
    protected PrinterState(int value) {
	super (value);
    }

    private static final String[] myStringTable = {
	"unknown",
	null,
	null,
	"idle",
	"processing",
	"stopped"
    };

    private static final PrinterState[] myEnumValueTable = {
	UNKNOWN,
	null,
	null,
	IDLE,
	PROCESSING,
	STOPPED
    };

    /**
     * Returns the string table for class PrinterState.
     */
    protected String[] getStringTable() {
	return myStringTable;
    }

    /**
     * Returns the enumeration value table for class PrinterState.
     */
    protected EnumSyntax[] getEnumValueTable() {
	return myEnumValueTable;
    }

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

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

}