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128 lines
3.9 KiB
128 lines
3.9 KiB
/*
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* Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.print.attribute.standard;
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import javax.print.attribute.Attribute;
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import javax.print.attribute.IntegerSyntax;
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import javax.print.attribute.PrintRequestAttribute;
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import javax.print.attribute.PrintJobAttribute;
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/**
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* Class JobPriority is an integer valued printing attribute class that
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* specifies a print job's priority.
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* <P>
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* If a JobPriority attribute is specified for a Print Job, it specifies a
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* priority for scheduling the job. A higher value specifies a higher priority.
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* The value 1 indicates the lowest possible priority. The value 100 indicates
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* the highest possible priority. Among those jobs that are ready to print, a
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* printer must print all jobs with a priority value of <I>n</I> before printing
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* those with a priority value of <I>n</I>-1 for all <I>n.</I>
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* <P>
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* If the client does not specify a JobPriority attribute for a Print Job and
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* the printer does support the JobPriority attribute, the printer must use an
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* implementation-defined default JobPriority value.
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* <P>
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* The client can always specify any job priority value from 1 to 100 for a job.
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* However, a Print Service instance may support fewer than 100 different
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* job priority levels. If this is the case, the Print Service instance
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* automatically maps the client-specified job priority value to one of the
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* supported job priority levels, dividing the 100 job priority values equally
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* among the available job priority levels.
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* <P>
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* <B>IPP Compatibility:</B> The integer value gives the IPP integer value. The
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* category name returned by <CODE>getName()</CODE> gives the IPP attribute
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* name.
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* <P>
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*
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* @author Alan Kaminsky
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*/
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public final class JobPriority extends IntegerSyntax
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implements PrintRequestAttribute, PrintJobAttribute {
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private static final long serialVersionUID = -4599900369040602769L;
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/**
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* Construct a new job priority attribute with the given integer value.
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*
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* @param value Integer value.
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*
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* @exception IllegalArgumentException
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* (Unchecked exception) Thrown if <CODE>value</CODE> is less than 1
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* or greater than 100.
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*/
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public JobPriority(int value) {
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super (value, 1, 100);
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}
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/**
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* Returns whether this job priority attribute is equivalent to the passed
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* in object. To be equivalent, all of the following conditions must be
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* true:
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* <OL TYPE=1>
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* <LI>
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* <CODE>object</CODE> is not null.
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* <LI>
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* <CODE>object</CODE> is an instance of class JobPriority.
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* <LI>
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* This job priority attribute's value and <CODE>object</CODE>'s value
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* are equal.
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* </OL>
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*
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* @param object Object to compare to.
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*
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* @return True if <CODE>object</CODE> is equivalent to this job
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* priority attribute, false otherwise.
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*/
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public boolean equals(Object object) {
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return (super.equals (object) && object instanceof JobPriority);
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}
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/**
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* Get the printing attribute class which is to be used as the "category"
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* for this printing attribute value.
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* <P>
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* For class JobPriority, the category is class JobPriority itself.
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*
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* @return Printing attribute class (category), an instance of class
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* {@link java.lang.Class java.lang.Class}.
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*/
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public final Class<? extends Attribute> getCategory() {
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return JobPriority.class;
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}
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/**
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* Get the name of the category of which this attribute value is an
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* instance.
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* <P>
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* For class JobPriority, the category name is <CODE>"job-priority"</CODE>.
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*
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* @return Attribute category name.
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*/
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public final String getName() {
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return "job-priority";
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}
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}
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