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package javax.print.attribute.standard;

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


Class JobPriority is an integer valued printing attribute class that specifies a print job's priority. 
 If a JobPriority attribute is specified for a Print Job, it specifies a priority for scheduling the job. A higher value specifies a higher priority. The value 1 indicates the lowest possible priority. The value 100 indicates the highest possible priority. Among those jobs that are ready to print, a printer must print all jobs with a priority value of n before
printing those with a priority value of n-1 for all n.

 If the client does not specify a JobPriority attribute for a Print Job and the printer does support the JobPriority attribute, the printer must use an implementation-defined default JobPriority value. 

The client can always specify any job priority value from 1 to 100 for a job.
However, a 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.


IPP Compatibility: The integer value gives the IPP integer value. The category name returned by getName() gives the IPP attribute name. 
Author:Alan Kaminsky
/**
 * Class {@code JobPriority} is an integer valued printing attribute class that
 * specifies a print job's priority.
 * <p>
 * If a {@code JobPriority} attribute is specified for a Print Job, it specifies
 * a priority for scheduling the job. A higher value specifies a higher
 * priority. The value 1 indicates the lowest possible priority. The value 100
 * indicates the highest possible priority. Among those jobs that are ready to
 * print, a printer must print all jobs with a priority value of <i>n</i> before
 * printing those with a priority value of <i>n</i>-1 for all <i>n.</i>
 * <p>
 * If the client does not specify a {@code JobPriority} attribute for a Print
 * Job and the printer does support the JobPriority attribute, the printer must
 * use an implementation-defined default JobPriority value.
 * <p>
 * The client can always specify any job priority value from 1 to 100 for a job.
 * However, a 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()} gives the IPP attribute name.
 *
 * @author Alan Kaminsky
 */
public final class JobPriority extends IntegerSyntax
    implements PrintRequestAttribute, PrintJobAttribute {

    
Use serialVersionUID from JDK 1.4 for interoperability.

/**
     * Use serialVersionUID from JDK 1.4 for interoperability.
     */
    private static final long serialVersionUID = -4599900369040602769L;

    
Construct a new job priority attribute with the given integer value.

Params:
  • value – Integer value
Throws:
/**
     * Construct a new job priority attribute with the given integer value.
     *
     * @param  value Integer value
     * @throws IllegalArgumentException if {@code value} is less than 1 or
     *         greater than 100
     */
    public JobPriority(int value) {
        super (value, 1, 100);
    }

    
Returns whether this job priority attribute is equivalent to the passed
in object. To be equivalent, all of the following conditions must be
true:

    
  
  1. object is not null. 
  2. object is an instance of class JobPriority. 
  3. This job priority attribute's value and object's value are equal. 


Params:
  • object – Object to compare to
Returns:true if object is equivalent to this job priority attribute, false otherwise
/**
     * Returns whether this job priority 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} is not {@code null}.
     *   <li>{@code object} is an instance of class {@code JobPriority}.
     *   <li>This job priority attribute's value and {@code object}'s value are
     *   equal.
     * </ol>
     *
     * @param  object {@code Object} to compare to
     * @return {@code true} if {@code object} is equivalent to this job priority
     *         attribute, {@code false} otherwise
     */
    public boolean equals(Object object) {
        return (super.equals (object) && object instanceof JobPriority);
    }

    
Get the printing attribute class which is to be used as the "category"
for this printing attribute value.

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

    
Get the name of the category of which this attribute value is an
instance.

 For class JobPriority, the category name is "job-priority". 
Returns:attribute category name
/**
     * Get the name of the category of which this attribute value is an
     * instance.
     * <p>
     * For class {@code JobPriority}, the category name is
     * {@code "job-priority"}.
     *
     * @return attribute category name
     */
    public final String getName() {
        return "job-priority";
    }
}