01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one
03: * or more contributor license agreements. See the NOTICE file
04: * distributed with this work for additional information
05: * regarding copyright ownership. The ASF licenses this file
06: * to you under the Apache License, Version 2.0 (the
07: * "License"); you may not use this file except in compliance
08: * with the License. You may obtain a copy of the License at
09: *
10: * http://www.apache.org/licenses/LICENSE-2.0
11: *
12: * Unless required by applicable law or agreed to in writing,
13: * software distributed under the License is distributed on an
14: * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15: * KIND, either express or implied. See the License for the
16: * specific language governing permissions and limitations
17: * under the License.
18: */
19: package org.apache.openjpa.jdbc.schema;
20:
21: /**
22: * Represents a unique constraint. It can also represent a partial constraint.
23: *
24: * @author Abe White
25: */
26: public class Unique extends LocalConstraint {
27:
28: /**
29: * Default constructor.
30: */
31: public Unique() {
32: }
33:
34: /**
35: * Constructor.
36: *
37: * @param name the name of the constraint, if any
38: * @param table the table of the constraint
39: */
40: public Unique(String name, Table table) {
41: super (name, table);
42: }
43:
44: public boolean isLogical() {
45: return false;
46: }
47:
48: /**
49: * Return true if the structure of this primary key matches that of
50: * the given one (same table, same columns).
51: */
52: public boolean equalsUnique(Unique unq) {
53: return equalsLocalConstraint(unq);
54: }
55: }
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