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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package javax.print.attribute;


Interface DocAttributeSet specifies the interface for a set of doc attributes, i.e. printing attributes that implement interface DocAttribute. In the Print Service API, the client uses a DocAttributeSet to specify the characteristics of an individual doc and the print job settings to be applied to an individual doc. 
 A DocAttributeSet is just an AttributeSet whose constructors and mutating operations guarantee an additional invariant, namely that all attribute values in the DocAttributeSet must be instances of interface DocAttribute. The add(Attribute), and addAll(AttributeSet) operations are respecified below to guarantee this additional invariant. 


Author: Alan Kaminsky
/**
 * Interface DocAttributeSet specifies the interface for a set of doc
 * attributes, i.e. printing attributes that implement interface {@link
 * DocAttribute DocAttribute}. In the Print Service API, the client uses a
 * DocAttributeSet to specify the characteristics of an individual doc and
 * the print job settings to be applied to an individual doc.
 * <P>
 * A DocAttributeSet is just an {@link AttributeSet AttributeSet} whose
 * constructors and mutating operations guarantee an additional invariant,
 * namely that all attribute values in the DocAttributeSet must be instances
 * of interface {@link DocAttribute DocAttribute}.
 * The {@link #add(Attribute) add(Attribute)}, and
 * {@link #addAll(AttributeSet) addAll(AttributeSet)} operations
 * are respecified below to guarantee this additional invariant.
 * <P>
 *
 * @author  Alan Kaminsky
 */
public interface DocAttributeSet extends AttributeSet {


    
Adds the specified attribute value to this attribute set if it is not
already present, first removing any existing value in the same
attribute category as the specified attribute value (optional
operation).

Params:
  • attribute –  Attribute value to be added to this attribute set.
Throws:
Returns: true if this attribute set changed as a result of
         the call, i.e., the given attribute value was not already a
         member of this attribute set.
/**
     * Adds the specified attribute value to this attribute set if it is not
     * already present, first removing any existing value in the same
     * attribute category as the specified attribute value (optional
     * operation).
     *
     * @param  attribute  Attribute value to be added to this attribute set.
     *
     * @return  <tt>true</tt> if this attribute set changed as a result of
     *          the call, i.e., the given attribute value was not already a
     *          member of this attribute set.
     *
     * @throws  UnmodifiableSetException
     *     (unchecked exception) Thrown if this attribute set does not
     *     support the <CODE>add()</CODE> operation.
     * @throws  ClassCastException
     *     (unchecked exception) Thrown if the <CODE>attribute</CODE> is
     *     not an instance of interface
     *     {@link DocAttribute DocAttribute}.
     * @throws  NullPointerException
     *    (unchecked exception) Thrown if the <CODE>attribute</CODE> is null.
     */
    public boolean add(Attribute attribute);

    
Adds all of the elements in the specified set to this attribute. The outcome is the same as if the add(Attribute) operation had been applied to this attribute set successively with each element from the specified set. If none of the categories in the specified set are the same as any categories in this attribute set, the addAll() operation effectively modifies this attribute
set so that its value is the union of the two sets.


The behavior of the addAll() operation is unspecified if
the specified set is modified while the operation is in progress.


If the addAll() operation throws an exception, the effect
on this attribute set's state is implementation dependent; elements
from the specified set before the point of the exception may or
may not have been added to this attribute set.

Params:
  • attributes –  whose elements are to be added to this attribute
           set.
Throws:
See Also:
Returns: true if this attribute set changed as a result of
         the call.
/**
     * Adds all of the elements in the specified set to this attribute.
     * The outcome is  the same as if the
     * {@link #add(Attribute) add(Attribute)}
     * operation had been applied to this attribute set successively with
     * each element from the specified set. If none of the categories in the
     * specified set  are the same as any categories in this attribute set,
     * the <tt>addAll()</tt> operation effectively modifies this attribute
     * set so that its value is the <i>union</i> of the two sets.
     * <P>
     * The behavior of the <CODE>addAll()</CODE> operation is unspecified if
     * the specified set is modified while the operation is in progress.
     * <P>
     * If the <CODE>addAll()</CODE> operation throws an exception, the effect
     * on this attribute set's state is implementation dependent; elements
     * from the specified set before the point of the exception may or
     * may not have been added to this attribute set.
     *
     * @param  attributes  whose elements are to be added to this attribute
     *            set.
     *
     * @return  <tt>true</tt> if this attribute set changed as a result of
     *          the call.
     *
     * @throws  UnmodifiableSetException
     *     (Unchecked exception) Thrown if this attribute set does not
     *     support the <tt>addAll()</tt> method.
     * @throws  ClassCastException
     *     (Unchecked exception) Thrown if some element in the specified
     *     set is not an instance of interface {@link DocAttribute
     *     DocAttribute}.
     * @throws  NullPointerException
     *     (Unchecked exception) Thrown if the specified  set is null.
     *
     * @see #add(Attribute)
     */
   public boolean addAll(AttributeSet attributes);
}