1 /*
2 * Copyright 2000-2001 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26
27 package javax.print.attribute;
28
29 /**
30 * Interface DocAttributeSet specifies the interface for a set of doc
31 * attributes, i.e. printing attributes that implement interface {@link
32 * DocAttribute DocAttribute}. In the Print Service API, the client uses a
33 * DocAttributeSet to specify the characteristics of an individual doc and
34 * the print job settings to be applied to an individual doc.
35 * <P>
36 * A DocAttributeSet is just an {@link AttributeSet AttributeSet} whose
37 * constructors and mutating operations guarantee an additional invariant,
38 * namely that all attribute values in the DocAttributeSet must be instances
39 * of interface {@link DocAttribute DocAttribute}.
40 * The {@link #add(Attribute) <CODE>add(Attribute)</CODE>}, and
41 * {@link #addAll(AttributeSet) <CODE>addAll(AttributeSet)</CODE>} operations
42 * are respecified below to guarantee this additional invariant.
43 * <P>
44 *
45 * @author Alan Kaminsky
46 */
47 public interface DocAttributeSet extends AttributeSet {
48
49
50 /**
51 * Adds the specified attribute value to this attribute set if it is not
52 * already present, first removing any existing value in the same
53 * attribute category as the specified attribute value (optional
54 * operation).
55 *
56 * @param attribute Attribute value to be added to this attribute set.
57 *
58 * @return <tt>true</tt> if this attribute set changed as a result of
59 * the call, i.e., the given attribute value was not already a
60 * member of this attribute set.
61 *
62 * @throws UnmodifiableSetException
63 * (unchecked exception) Thrown if this attribute set does not
64 * support the <CODE>add()</CODE> operation.
65 * @throws ClassCastException
66 * (unchecked exception) Thrown if the <CODE>attribute</CODE> is
67 * not an instance of interface
68 * {@link DocAttribute DocAttribute}.
69 * @throws NullPointerException
70 * (unchecked exception) Thrown if the <CODE>attribute</CODE> is null.
71 */
72 public boolean add(Attribute attribute);
73
74 /**
75 * Adds all of the elements in the specified set to this attribute.
76 * The outcome is the same as if the
77 * {@link #add(Attribute) <CODE>add(Attribute)</CODE>}
78 * operation had been applied to this attribute set successively with
79 * each element from the specified set. If none of the categories in the
80 * specified set are the same as any categories in this attribute set,
81 * the <tt>addAll()</tt> operation effectively modifies this attribute
82 * set so that its value is the <i>union</i> of the two sets.
83 * <P>
84 * The behavior of the <CODE>addAll()</CODE> operation is unspecified if
85 * the specified set is modified while the operation is in progress.
86 * <P>
87 * If the <CODE>addAll()</CODE> operation throws an exception, the effect
88 * on this attribute set's state is implementation dependent; elements
89 * from the specified set before the point of the exception may or
90 * may not have been added to this attribute set.
91 *
92 * @param attributes whose elements are to be added to this attribute
93 * set.
94 *
95 * @return <tt>true</tt> if this attribute set changed as a result of
96 * the call.
97 *
98 * @throws UnmodifiableSetException
99 * (Unchecked exception) Thrown if this attribute set does not
100 * support the <tt>addAll()</tt> method.
101 * @throws ClassCastException
102 * (Unchecked exception) Thrown if some element in the specified
103 * set is not an instance of interface {@link DocAttribute
104 * DocAttribute}.
105 * @throws NullPointerException
106 * (Unchecked exception) Thrown if the specified set is null.
107 *
108 * @see #add(Attribute)
109 */
110 public boolean addAll(AttributeSet attributes);
111 }
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