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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).
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17   * You should have received a copy of the GNU General Public License version
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25  
26  
27  package javax.print.attribute;
28  
29  /**
30   * Interface PrintRequestAttributeSet specifies the interface for a set of
31   * print request attributes, i.e. printing attributes that implement interface
32   * {@link PrintRequestAttribute PrintRequestAttribute}.
33   * The client uses a PrintRequestAttributeSet to specify the settings to be
34   * applied to a whole print job and to all the docs in the print job.
35   * <P>
36   * PrintRequestAttributeSet is just an {@link AttributeSet AttributeSet} whose
37   * constructors and mutating operations guarantee an additional invariant,
38   * namely that all attribute values in the PrintRequestAttributeSet must be
39   * instances of interface {@link PrintRequestAttribute PrintRequestAttribute}.
40   * The {@link #add(Attribute) add(Attribute)}, and
41   * {@link #addAll(AttributeSet) addAll(AttributeSet)} operations
42   * are respecified below to guarantee this additional invariant.
43   * <P>
44   *
45   * @author  Alan Kaminsky
46   */
47  public interface PrintRequestAttributeSet extends AttributeSet {
48  
49      /**
50       * Adds the specified attribute value to this attribute set if it is not
51       * already present, first removing any existing value in the same
52       * attribute category as the specified attribute value (optional
53       * operation).
54       *
55       * @param  attribute  Attribute value to be added to this attribute set.
56       *
57       * @return  <tt>true</tt> if this attribute set changed as a result of
58       *          the call, i.e., the given attribute value was not already a
59       *          member of this attribute set.
60       *
61       * @throws  UnmodifiableSetException
62       *     (unchecked exception) Thrown if this attribute set does not
63       *     support the <CODE>add()</CODE> operation.
64       * @throws  ClassCastException
65       *     (unchecked exception) Thrown if the <CODE>attribute</CODE> is
66       *     not an instance of interface
67       *     {@link PrintRequestAttribute PrintRequestAttribute}.
68       * @throws  NullPointerException
69       *     (unchecked exception) Thrown if the <CODE>attribute</CODE> is null.
70       */
71      public boolean add(Attribute attribute);
72  
73      /**
74       * Adds all of the elements in the specified set to this attribute.
75       * The outcome is  the same as if the
76       * {@link #add(Attribute) add(Attribute)}
77       * operation had been applied to this attribute set successively with
78       * each element from the specified set. If none of the categories in the
79       * specified set  are the same as any categories in this attribute set,
80       * the <tt>addAll()</tt> operation effectively modifies this attribute
81       * set so that its value is the <i>union</i> of the two sets.
82       * <P>
83       * The behavior of the <CODE>addAll()</CODE> operation is unspecified if
84       * the specified set is modified while the operation is in progress.
85       * <P>
86       * If the <CODE>addAll()</CODE> operation throws an exception, the effect
87       * on this attribute set's state is implementation dependent; elements
88       * from the specified set before the point of the exception may or
89       * may not have been added to this attribute set.
90       *
91       * @param  attributes  whose elements are to be added to this attribute
92       *            set.
93       *
94       * @return  <tt>true</tt> if this attribute set changed as a result of
95       *          the call.
96       *
97       * @throws  UnmodifiableSetException
98       *     (Unchecked exception) Thrown if this attribute set does not
99       *     support the <tt>addAll()</tt> method.
100      * @throws  ClassCastException
101      *     (Unchecked exception) Thrown if some element in the specified
102      *     set is not an instance of interface {@link PrintRequestAttribute
103      *     PrintRequestAttribute}.
104      * @throws  NullPointerException
105      *     (Unchecked exception) Thrown if the specified  set is null.
106      *
107      * @see #add(Attribute)
108      */
109     public boolean addAll(AttributeSet attributes);
110 
111 }