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1
58
59 package org.apache.ecs.storage;
60
61 import java.util.Enumeration  ;
62 import java.util.Vector ;
63
64 public class Hash implements java.io.Serializable
65 {
66 private Array keys = new Array();
67 private Array elements = new Array();
68
69 public Hash()
70 {
71 }
72
73 public void setSize(int newSize)
74 {
75 keys.setSize(newSize);
76 elements.setSize(newSize);
77 }
78
79 public void setGrow(int growBy)
80 {
81 keys.setGrow(growBy);
82 elements.setGrow(growBy);
83 }
84
85 public synchronized void put(String key,Object element)
86 {
87 try
88 {
89 if( containsKey(key) )
90 {
91 elements.add(keys.location(key),element);
92 }
93 else
94 {
95 keys.add( key );
96 elements.add(element);
97 }
98 }
99 catch(org.apache.ecs.storage.NoSuchObjectException nsoe)
100 {
101 }
102 }
103
104 public synchronized void remove(String key)
105 {
106 try
107 {
108 if(containsKey(key))
109 {
110 elements.remove(keys.location(key));
111 elements.remove(elements.location(key));
112 }
113 }
114 catch(org.apache.ecs.storage.NoSuchObjectException nsoe)
115 {
116 }
117 }
118
119 public int size()
120 {
121 return keys.getCurrentSize();
122 }
123
124 public boolean contains(Object element)
125 {
126 try
127 {
128 elements.location(element);
129 return(true);
130 }
131 catch(org.apache.ecs.storage.NoSuchObjectException noSuchObject)
132 {
133 return false;
134 }
135 }
136
137 public Enumeration keys()
138 {
139 return keys;
140 }
141
142 public boolean containsKey(String key)
143 {
144 try
145 {
146 keys.location(key);
147 }
148 catch(org.apache.ecs.storage.NoSuchObjectException noSuchObject)
149 {
150 return false;
151 }
152 return(true);
153 }
154
155 public Enumeration elements()
156 {
157 return elements;
158 }
159
160 public Object get(String key)
161 {
162 try
163 {
164 if( containsKey(key) )
165 return(elements.get(keys.location(key)));
166 }
167 catch(org.apache.ecs.storage.NoSuchObjectException nsoe)
168 {
169 }
170 return null;
171 }
172 }
173 |
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