1 /* 2 * Copyright (c) 2000, 2017, Oracle and/or its affiliates. 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package javax.print.attribute; 27 28 /** 29 * Interface {@code PrintServiceAttributeSet} specifies the interface for a set 30 * of print job attributes, i.e. printing attributes that implement interface 31 * {@link PrintServiceAttribute PrintServiceAttribute}. In the Print Service 32 * API, the Print Service instance uses a {@code PrintServiceAttributeSet} to 33 * report the status of the print service. 34 * <p> 35 * A {@code PrintServiceAttributeSet} is just an 36 * {@link AttributeSet AttributeSet} whose constructors and mutating operations 37 * guarantee an additional invariant, namely that all attribute values in the 38 * {@code PrintServiceAttributeSet} must be instances of interface 39 * {@link PrintServiceAttribute PrintServiceAttribute}. The 40 * {@link #add(Attribute) add(Attribute)}, and 41 * {@link #addAll(AttributeSet) addAll(AttributeSet)} operations are respecified 42 * below to guarantee this additional invariant. 43 * 44 * @author Alan Kaminsky 45 */ 46 public interface PrintServiceAttributeSet extends AttributeSet { 47 48 /** 49 * Adds the specified attribute value to this attribute set if it is not 50 * already present, first removing any existing value in the same attribute 51 * category as the specified attribute value (optional operation). 52 * 53 * @param attribute attribute value to be added to this attribute set 54 * @return {@code true} if this attribute set changed as a result of the 55 * call, i.e., the given attribute value was not already a member of 56 * this attribute set 57 * @throws UnmodifiableSetException if this attribute set does not support 58 * the {@code add()} operation 59 * @throws ClassCastException if the {@code attribute} is not an instance of 60 * interface {@link PrintServiceAttribute PrintServiceAttribute} 61 * @throws NullPointerException if the {@code attribute} is {@code null} 62 */ 63 public boolean add(Attribute attribute); 64 65 /** 66 * Adds all of the elements in the specified set to this attribute. The 67 * outcome is the same as if the {@link #add(Attribute) add(Attribute)} 68 * operation had been applied to this attribute set successively with each 69 * element from the specified set. If none of the categories in the 70 * specified set are the same as any categories in this attribute set, the 71 * {@code addAll()} operation effectively modifies this attribute set so 72 * that its value is the <i>union</i> of the two sets. 73 * <p> 74 * The behavior of the {@code addAll()} operation is unspecified if the 75 * specified set is modified while the operation is in progress. 76 * <p> 77 * If the {@code addAll()} operation throws an exception, the effect on this 78 * attribute set's state is implementation dependent; elements from the 79 * specified set before the point of the exception may or may not have been 80 * added to this attribute set. 81 * 82 * @param attributes whose elements are to be added to this attribute set 83 * @return {@code true} if this attribute set changed as a result of the 84 * call 85 * @throws UnmodifiableSetException if this attribute set does not support 86 * the {@code addAll()} method 87 * @throws ClassCastException if some element in the specified set is not an 88 * instance of interface 89 * {@link PrintServiceAttribute PrintServiceAttribute} 90 * @throws NullPointerException if the specified set is {@code null} 91 * @see #add(Attribute) 92 */ 93 public boolean addAll(AttributeSet attributes); 94 }