01: /*
02:
03: Derby - Class org.apache.derby.impl.store.access.UTF
04:
05: Licensed to the Apache Software Foundation (ASF) under one or more
06: contributor license agreements. See the NOTICE file distributed with
07: this work for additional information regarding copyright ownership.
08: The ASF licenses this file to you under the Apache License, Version 2.0
09: (the "License"); you may not use this file except in compliance with
10: the License. You may obtain a copy of the License at
11:
12: http://www.apache.org/licenses/LICENSE-2.0
13:
14: Unless required by applicable law or agreed to in writing, software
15: distributed under the License is distributed on an "AS IS" BASIS,
16: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17: See the License for the specific language governing permissions and
18: limitations under the License.
19:
20: */
21:
22: package org.apache.derby.impl.store.access;
23:
24: import org.apache.derby.iapi.services.sanity.SanityManager;
25: import org.apache.derby.iapi.types.DataValueDescriptor;
26: import org.apache.derby.iapi.types.UserType;
27:
28: /**
29: A class that is used to store java.lang.Strings and provide
30: ordering capability.
31:
32: @see org.apache.derby.iapi.services.io.FormatIdOutputStream
33: **/
34:
35: public class UTF extends UserType {
36: public UTF() {
37: }
38:
39: public UTF(String value) {
40: super (value);
41: }
42:
43: /*
44: * The following methods implement the Orderable protocol.
45: */
46:
47: public int compare(DataValueDescriptor other) {
48: if (SanityManager.DEBUG)
49: SanityManager.ASSERT(other instanceof UTF);
50:
51: UTF arg = (UTF) other;
52:
53: return ((String) getObject()).compareTo((String) arg
54: .getObject());
55:
56: }
57: }
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