| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| Dictionary |
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| 0.0;0 | ||||
| Dictionary$Table |
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| 0.0;0 |
| 1 | /* | |
| 2 | * Dictionary.java July 2006 | |
| 3 | * | |
| 4 | * Copyright (C) 2006, Niall Gallagher <niallg@users.sf.net> | |
| 5 | * | |
| 6 | * This library is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation. | |
| 9 | * | |
| 10 | * This library is distributed in the hope that it will be useful, | |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | * GNU Lesser General Public License for more details. | |
| 14 | * | |
| 15 | * You should have received a copy of the GNU Lesser General | |
| 16 | * Public License along with this library; if not, write to the | |
| 17 | * Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
| 18 | * Boston, MA 02111-1307 USA | |
| 19 | */ | |
| 20 | ||
| 21 | package org.simpleframework.xml.util; | |
| 22 | ||
| 23 | import java.util.AbstractSet; | |
| 24 | import java.util.HashMap; | |
| 25 | import java.util.Iterator; | |
| 26 | ||
| 27 | /** | |
| 28 | * The <code>Dictionary</code> object represents a mapped set of entry | |
| 29 | * objects that can be serialized and deserialized. This is used when | |
| 30 | * there is a need to load a list of objects that can be mapped using | |
| 31 | * a name attribute. Using this object avoids the need to implement a | |
| 32 | * commonly required pattern of building a map of XML element objects. | |
| 33 | * <pre> | |
| 34 | * | |
| 35 | * <dictionary> | |
| 36 | * <entry name="example"> | |
| 37 | * <element>example text</element> | |
| 38 | * </entry> | |
| 39 | * <entry name="example"> | |
| 40 | * <element>example text</element> | |
| 41 | * </entry> | |
| 42 | * </dictionary> | |
| 43 | * | |
| 44 | * </pre> | |
| 45 | * This can contain implementations of the <code>Entry</code> object | |
| 46 | * which contains a required "name" attribute. Implementations of the | |
| 47 | * entry object can add further XML attributes an elements. This must | |
| 48 | * be annotated with the <code>ElementList</code> annotation in order | |
| 49 | * to be serialized and deserialized as an object field. | |
| 50 | * | |
| 51 | * @author Niall Gallagher | |
| 52 | * | |
| 53 | * @see org.simpleframework.xml.util.Entry | |
| 54 | */ | |
| 55 | 138 | public class Dictionary<E extends Entry> extends AbstractSet<E> { |
| 56 | ||
| 57 | /** | |
| 58 | * Used to map the entries to their configured names. | |
| 59 | */ | |
| 60 | protected Table map; | |
| 61 | ||
| 62 | /** | |
| 63 | * Constructor for the <code>Dictionary</code> object. This | |
| 64 | * is used to create a set that contains entry objects mapped | |
| 65 | * to an XML attribute name value. Entry objects added to this | |
| 66 | * dictionary can be retrieved using its name value. | |
| 67 | */ | |
| 68 | 8 | public Dictionary() { |
| 69 | 8 | this.map = new Table(); |
| 70 | 8 | } |
| 71 | ||
| 72 | /** | |
| 73 | * This method is used to add the provided entry to this set. If | |
| 74 | * an entry of the same name already existed within the set then | |
| 75 | * it is replaced with the specified <code>Entry</code> object. | |
| 76 | * | |
| 77 | * @param item this is the entry object that is to be inserted | |
| 78 | */ | |
| 79 | public boolean add(E item) { | |
| 80 | 138 | return map.put(item.name, item) != null; |
| 81 | } | |
| 82 | ||
| 83 | /** | |
| 84 | * This returns the number of <code>Entry</code> objects within | |
| 85 | * the dictionary. This will use the internal map to acquire the | |
| 86 | * number of entry objects that have been inserted to the map. | |
| 87 | * | |
| 88 | * @return this returns the number of entry objects in the set | |
| 89 | */ | |
| 90 | public int size() { | |
| 91 | 1 | return map.size(); |
| 92 | } | |
| 93 | ||
| 94 | /** | |
| 95 | * Returns an iterator of <code>Entry</code> objects which can be | |
| 96 | * used to remove items from this set. This will use the internal | |
| 97 | * map object and return the iterator for the map values. | |
| 98 | * | |
| 99 | * @return this returns an iterator for the entry objects | |
| 100 | */ | |
| 101 | public Iterator<E> iterator() { | |
| 102 | 9 | return map.values().iterator(); |
| 103 | } | |
| 104 | ||
| 105 | /** | |
| 106 | * This is used to acquire an <code>Entry</code> from the set by | |
| 107 | * its name. This uses the internal map to look for the entry, if | |
| 108 | * the entry exists it is returned, if not this returns null. | |
| 109 | * | |
| 110 | * @param name this is the name of the entry object to retrieve | |
| 111 | * | |
| 112 | * @return this returns the entry mapped to the specified name | |
| 113 | */ | |
| 114 | public E get(String name) { | |
| 115 | 144 | return map.get(name); |
| 116 | } | |
| 117 | ||
| 118 | /** | |
| 119 | * This is used to remove an <code>Entry</code> from the set by | |
| 120 | * its name. This uses the internal map to look for the entry, if | |
| 121 | * the entry exists it is returned and removed from the map. | |
| 122 | * | |
| 123 | * @param name this is the name of the entry object to remove | |
| 124 | * | |
| 125 | * @return this returns the entry mapped to the specified name | |
| 126 | */ | |
| 127 | public E remove(String name) { | |
| 128 | 0 | return map.remove(name); |
| 129 | } | |
| 130 | ||
| 131 | /** | |
| 132 | * The <code>Table</code> object is used to represent a map of | |
| 133 | * entries mapped to a string name. Each implementation of the | |
| 134 | * entry must contain a name attribute, which is used to insert | |
| 135 | * the entry into the map. This acts as a typedef. | |
| 136 | * | |
| 137 | * @see org.simpleframework.xml.util.Entry | |
| 138 | */ | |
| 139 | private class Table extends HashMap<String, E> { | |
| 140 | ||
| 141 | /** | |
| 142 | * Constructor for the <code>Table</code> object. This will | |
| 143 | * create a map that is used to store the entry objects that | |
| 144 | * are serialized and deserialized to and from an XML source. | |
| 145 | */ | |
| 146 | 8 | public Table() { |
| 147 | 8 | super(); |
| 148 | 8 | } |
| 149 | } | |
| 150 | } |