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package javax.print.attribute.standard;

import java.util.Collection;
import java.util.HashSet;

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


Class JobStateReasons is a printing attribute class, a set of enumeration values, that provides additional information about the job's current state, i.e., information that augments the value of the job's JobState attribute. 
 Instances of JobStateReason do not appear in a Print Job's attribute set directly. Rather, a JobStateReasons attribute appears in the Print Job's attribute set. The JobStateReasons attribute contains zero, one, or more than one JobStateReason objects which pertain to the Print Job's status. The printer adds a JobStateReason object to the Print Job's JobStateReasons attribute when the corresponding condition becomes true of the Print Job, and the printer removes the JobStateReason object again when the corresponding condition becomes false, regardless of whether the Print Job's overall JobState also changed. 
 Class JobStateReasons inherits its implementation from class java.util.HashSet. Unlike most printing attributes which are immutable once constructed, class JobStateReasons is designed to be mutable; you can add JobStateReason objects to an existing JobStateReasons object and remove them again. However, like class java.util.HashSet, class JobStateReasons is not multiple thread safe. If a JobStateReasons object will be used by multiple threads, be sure to synchronize its operations (e.g., using a synchronized set view obtained from class java.util.Collections). 

IPP Compatibility: The string value returned by each individual JobStateReason object's toString() method gives the IPP keyword value. The category name returned by getName() gives the IPP attribute name. 
Author:Alan Kaminsky
/**
 * Class {@code JobStateReasons} is a printing attribute class, a set of
 * enumeration values, that provides additional information about the job's
 * current state, i.e., information that augments the value of the job's
 * {@link JobState JobState} attribute.
 * <p>
 * Instances of {@link JobStateReason JobStateReason} do not appear in a Print
 * Job's attribute set directly. Rather, a {@code JobStateReasons} attribute
 * appears in the Print Job's attribute set. The {@code JobStateReasons}
 * attribute contains zero, one, or more than one
 * {@link JobStateReason JobStateReason} objects which pertain to the Print
 * Job's status. The printer adds a {@link JobStateReason JobStateReason} object
 * to the Print Job's JobStateReasons attribute when the corresponding condition
 * becomes true of the Print Job, and the printer removes the
 * {@link JobStateReason JobStateReason} object again when the corresponding
 * condition becomes false, regardless of whether the Print Job's overall
 * {@link JobState JobState} also changed.
 * <p>
 * Class {@code JobStateReasons} inherits its implementation from class
 * {@link HashSet java.util.HashSet}. Unlike most printing attributes
 * which are immutable once constructed, class {@code JobStateReasons} is
 * designed to be mutable; you can add {@link JobStateReason JobStateReason}
 * objects to an existing {@code JobStateReasons} object and remove them again.
 * However, like class {@link HashSet java.util.HashSet}, class
 * {@code JobStateReasons} is not multiple thread safe. If a
 * {@code JobStateReasons} object will be used by multiple threads, be sure to
 * synchronize its operations (e.g., using a synchronized set view obtained
 * from class {@link java.util.Collections java.util.Collections}).
 * <p>
 * <b>IPP Compatibility:</b> The string value returned by each individual
 * {@link JobStateReason JobStateReason} object's {@code toString()} method
 * gives the IPP keyword value. The category name returned by {@code getName()}
 * gives the IPP attribute name.
 *
 * @author Alan Kaminsky
 */
public final class JobStateReasons
    extends HashSet<JobStateReason> implements PrintJobAttribute {

    
Use serialVersionUID from JDK 1.4 for interoperability.

/**
     * Use serialVersionUID from JDK 1.4 for interoperability.
     */
    private static final long serialVersionUID = 8849088261264331812L;

    
Construct a new, empty job state reasons attribute; the underlying hash
set has the default initial capacity and load factor.

/**
     * Construct a new, empty job state reasons attribute; the underlying hash
     * set has the default initial capacity and load factor.
     */
    public JobStateReasons() {
        super();
    }

    
Construct a new, empty job state reasons attribute; the underlying hash
set has the given initial capacity and the default load factor.

Params:
  • initialCapacity – initial capacity
Throws:
/**
     * Construct a new, empty job state reasons attribute; the underlying hash
     * set has the given initial capacity and the default load factor.
     *
     * @param  initialCapacity initial capacity
     * @throws IllegalArgumentException if the initial capacity is negative
     */
    public JobStateReasons(int initialCapacity) {
        super (initialCapacity);
    }

    
Construct a new, empty job state reasons attribute; the underlying hash
set has the given initial capacity and load factor.

Params:
  • initialCapacity – initial capacity
  • loadFactor – load factor
Throws:
/**
     * Construct a new, empty job state reasons attribute; the underlying hash
     * set has the given initial capacity and load factor.
     *
     * @param  initialCapacity initial capacity
     * @param  loadFactor load factor
     * @throws IllegalArgumentException if the initial capacity is negative
     */
    public JobStateReasons(int initialCapacity, float loadFactor) {
        super (initialCapacity, loadFactor);
    }

    
Construct a new job state reasons attribute that contains the same JobStateReason objects as the given collection. The underlying hash set's initial capacity and load factor are as specified in the superclass constructor HashSet(Collection). 
Params:
  • collection – collection to copy
Throws:
/**
     * Construct a new job state reasons attribute that contains the same
     * {@link JobStateReason JobStateReason} objects as the given collection.
     * The underlying hash set's initial capacity and load factor are as
     * specified in the superclass constructor
     * {@link HashSet#HashSet(Collection) HashSet(Collection)}.
     *
     * @param  collection collection to copy
     * @throws NullPointerException if {@code collection} is {@code null} or if
     *         any element in {@code collection} is {@code null}
     * @throws ClassCastException if any element in {@code collection} is not an
     *         instance of class {@link JobStateReason JobStateReason}
     */
    public JobStateReasons(Collection<JobStateReason> collection) {
        super (collection);
    }

    
Adds the specified element to this job state reasons attribute if it is not already present. The element to be added must be an instance of class JobStateReason. If this job state reasons attribute already contains the specified element, the call leaves this job state reasons attribute unchanged and returns false. 
Params:
  • o – element to be added to this job state reasons attribute
Throws:
Returns:true if this job state reasons attribute did not already contain the specified element
Since:1.5
/**
     * Adds the specified element to this job state reasons attribute if it is
     * not already present. The element to be added must be an instance of class
     * {@link JobStateReason JobStateReason}. If this job state reasons
     * attribute already contains the specified element, the call leaves this
     * job state reasons attribute unchanged and returns {@code false}.
     *
     * @param  o element to be added to this job state reasons attribute
     * @return {@code true} if this job state reasons attribute did not already
     *         contain the specified element
     * @throws NullPointerException if the specified element is {@code null}
     * @throws ClassCastException if the specified element is not an instance of
     *         class {@link JobStateReason JobStateReason}
     * @since 1.5
     */
    public boolean add(JobStateReason o) {
        if (o == null) {
            throw new NullPointerException();
        }
        return super.add(o);
    }

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

 For class JobStateReasons, the category is class JobStateReasons 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 JobStateReasons}, the category is class
     * JobStateReasons itself.
     *
     * @return printing attribute class (category), an instance of class
     *         {@link Class java.lang.Class}
     */
    public final Class<? extends Attribute> getCategory() {
        return JobStateReasons.class;
    }

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

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