| package org.apache.ddlutils.alteration; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.ddlutils.model.Database; |
| import org.apache.ddlutils.model.Index; |
| import org.apache.ddlutils.model.Table; |
| |
| /** |
| * The base class for changes affecting indexes. |
| * |
| * @version $Revision: $ |
| */ |
| public abstract class IndexChangeImplBase extends TableChangeImplBase |
| implements IndexChange |
| { |
| /** The names of the columns in the index. */ |
| private List _columnNames = new ArrayList(); |
| |
| /** |
| * Creates a new change object. |
| * |
| * @param tableName The name of the changed table |
| * @param index The index; note that this change object will not maintain a reference |
| * to the index object |
| */ |
| public IndexChangeImplBase(String tableName, Index index) |
| { |
| super(tableName); |
| for (int colIdx = 0; colIdx < index.getColumnCount(); colIdx++) |
| { |
| _columnNames.add(index.getColumn(colIdx).getName()); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Index findChangedIndex(Database model, boolean caseSensitive) |
| { |
| Table table = findChangedTable(model, caseSensitive); |
| |
| if (table != null) |
| { |
| for (int indexIdx = 0; indexIdx < table.getIndexCount(); indexIdx++) |
| { |
| Index curIndex = table.getIndex(indexIdx); |
| |
| if (curIndex.getColumnCount() == _columnNames.size()) |
| { |
| for (int colIdx = 0; colIdx < curIndex.getColumnCount(); colIdx++) |
| { |
| String curColName = curIndex.getColumn(colIdx).getName(); |
| String expectedColName = (String)_columnNames.get(colIdx); |
| |
| if ((caseSensitive && curColName.equals(expectedColName)) || |
| (!caseSensitive && curColName.equalsIgnoreCase(expectedColName))) |
| { |
| return curIndex; |
| } |
| } |
| } |
| } |
| } |
| return null; |
| } |
| } |