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* Copyright (c) 2000, 2001, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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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 {@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) <CODE>add(Attribute)</CODE>}, and
* {@link #addAll(AttributeSet) <CODE>addAll(AttributeSet)</CODE>} 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).
*
* @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
* {@link #add(Attribute) <CODE>add(Attribute)</CODE>}
* 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);
}