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 org.apache.ddlutils.model.Column;
import org.apache.ddlutils.model.Database;
import org.apache.ddlutils.model.Table;
/**
* Represents the change of the primary key of a table.
*
* @version $Revision: $
*/
public class PrimaryKeyChange extends TableChangeImplBase
{
/** The columns making up the original primary key. */
private Column[] _oldPrimaryKeyColumns;
/** The columns making up the new primary key. */
private Column[] _newPrimaryKeyColumns;
/**
* Creates a new change object.
*
* @param table The table whose primary key is to be changed
* @param oldPrimaryKeyColumns The columns making up the original primary key
* @param newPrimaryKeyColumns The columns making up the new primary key
*/
public PrimaryKeyChange(Table table, Column[] oldPrimaryKeyColumns, Column[] newPrimaryKeyColumns)
{
super(table);
_oldPrimaryKeyColumns = oldPrimaryKeyColumns;
_newPrimaryKeyColumns = newPrimaryKeyColumns;
}
/**
* Returns the columns making up the original primary key.
*
* @return The columns
*/
public Column[] getOldPrimaryKeyColumns()
{
return _oldPrimaryKeyColumns;
}
/**
* Returns the columns making up the new primary key.
*
* @return The columns
*/
public Column[] getNewPrimaryKeyColumns()
{
return _newPrimaryKeyColumns;
}
/**
* {@inheritDoc}
*/
public void apply(Database database, boolean caseSensitive)
{
Table table = database.findTable(getChangedTable().getName(), caseSensitive);
for (int idx = 0; idx < _oldPrimaryKeyColumns.length; idx++)
{
Column column = table.findColumn(_oldPrimaryKeyColumns[idx].getName(), caseSensitive);
column.setPrimaryKey(false);
}
for (int idx = 0; idx < _newPrimaryKeyColumns.length; idx++)
{
Column column = table.findColumn(_newPrimaryKeyColumns[idx].getName(), caseSensitive);
column.setPrimaryKey(true);
}
}
}