| Clover Coverage Report - Impex Parent 1.0.21-SNAPSHOT (Aggregated) |
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| Unique | Line # 35 | 8 | 0% | 3 | 12 | 0% |
0.0
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| No Tests | |||
| 1 | package org.apache.torque.engine.database.model; | |
| 2 | ||
| 3 | /* | |
| 4 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 5 | * or more contributor license agreements. See the NOTICE file | |
| 6 | * distributed with this work for additional information | |
| 7 | * regarding copyright ownership. The ASF licenses this file | |
| 8 | * to you under the Apache License, Version 2.0 (the | |
| 9 | * "License"); you may not use this file except in compliance | |
| 10 | * with 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, | |
| 15 | * software distributed under the License is distributed on an | |
| 16 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 17 | * KIND, either express or implied. See the License for the | |
| 18 | * specific language governing permissions and limitations | |
| 19 | * under the License. | |
| 20 | */ | |
| 21 | ||
| 22 | import java.util.List; | |
| 23 | ||
| 24 | /** | |
| 25 | * Information about unique columns of a table. This class assumes | |
| 26 | * that in the underlying RDBMS, unique constraints and unique indices | |
| 27 | * are roughly equivalent. For example, adding a unique constraint to | |
| 28 | * a column also creates an index on that column (this is known to be | |
| 29 | * true for MySQL and Oracle). | |
| 30 | * | |
| 31 | * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a> | |
| 32 | * @author <a href="mailto:dlr@collab.net">Daniel Rall</a> | |
| 33 | * @version $Id: Unique.java,v 1.1 2007-10-21 07:57:27 abyrne Exp $ | |
| 34 | */ | |
| 35 | public class Unique extends Index | |
| 36 | { | |
| 37 | /** | |
| 38 | * Returns <code>true</code>. | |
| 39 | * | |
| 40 | * @return true | |
| 41 | */ | |
| 42 | 0 |
 public final boolean isUnique() |
| 43 | { | |
| 44 | 0 | return true; |
| 45 | } | |
| 46 | ||
| 47 | /** | |
| 48 | * String representation of the index. This is an xml representation. | |
| 49 | * | |
| 50 | * @return string representation in xml | |
| 51 | */ | |
| 52 | 0 |
public String toString() |
| 53 | { | |
| 54 | 0 | StringBuffer result = new StringBuffer(); |
| 55 | 0 | result.append(" <unique name=\"") |
| 56 | .append(getName()) | |
| 57 | .append("\">\n"); | |
| 58 | ||
| 59 | 0 | List columns = getColumns(); |
| 60 | 0 | for (int i = 0; i < columns.size(); i++) |
| 61 | { | |
| 62 | 0 | result.append(" <unique-column name=\"") |
| 63 | .append(columns.get(i)) | |
| 64 | .append("\"/>\n"); | |
| 65 | } | |
| 66 | 0 | result.append(" </unique>\n"); |
| 67 | 0 | return result.toString(); |
| 68 | } | |
| 69 | } | |
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