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1: /* RequestedAttributes.java -- 2: Copyright (C) 2006 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package gnu.javax.print.ipp.attribute; 40: 41: import java.util.ArrayList; 42: import java.util.List; 43: 44: import javax.print.attribute.Attribute; 45: 46: /** 47: * <code>RequestedAttributes</code> specifies the requested 48: * attributes in an IPP request operation. 49: * 50: * @author Wolfgang Baer (WBaer@gmx.de) 51: */ 52: public final class RequestedAttributes implements Attribute 53: { 54: private ArrayList attributes; 55: 56: /** 57: * Creates a <code>RequestedAttributes</code> object with 58: * the initial value. 59: * 60: * @param value the string for the ipp name 61: * 62: * @exception NullPointerException if value is null 63: */ 64: public RequestedAttributes(String value) 65: { 66: if (value == null) 67: throw new NullPointerException(); 68: 69: attributes = new ArrayList(); 70: attributes.add(value); 71: } 72: 73: /** 74: * Adds the IPP name value to the set. 75: * 76: * @param value the string for the ipp name 77: */ 78: public void addValue(String value) 79: { 80: attributes.add(value); 81: } 82: 83: /** 84: * Returns the values. 85: * 86: * @return The values as list. 87: */ 88: public List getValues() 89: { 90: return attributes; 91: } 92: 93: /** 94: * Returns category of this class. 95: * 96: * @return The class <code>DocumentFormat</code> itself. 97: */ 98: public Class getCategory() 99: { 100: return RequestedAttributes.class; 101: } 102: 103: /** 104: * Returns the name of this attribute. 105: * 106: * @return The name "requested-attributes". 107: */ 108: public String getName() 109: { 110: return "requested-attributes"; 111: } 112: 113: /** 114: * Returns the string representation for this object. 115: * 116: * @return The string representation. 117: */ 118: public String toString() 119: { 120: StringBuffer b = new StringBuffer(); 121: 122: if (attributes.size() > 0) 123: b.append(attributes.get(0)); 124: 125: for (int i=1; i < attributes.size(); i++) 126: b.append(", " + attributes.get(i)); 127: 128: return b.toString(); 129: } 130: }