package org.apache.ddlutils.task; | |
/* | |
* 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.Platform; | |
import org.apache.ddlutils.model.Database; | |
import org.apache.ddlutils.platform.CreationParameters; | |
import org.apache.tools.ant.BuildException; | |
/** | |
* Parses the schema XML files specified for the enclosing task, and creates the corresponding | |
* schema in the database. | |
* | |
* @version $Revision: 289996 $ | |
* @ant.task name="writeSchemaToDatabase" | |
*/ | |
public class WriteSchemaToDatabaseCommand extends DatabaseCommandWithCreationParameters | |
{ | |
/** Whether to alter or re-set the database if it already exists. */ | |
private boolean _alterDb = true; | |
/** Whether to drop tables and the associated constraints if necessary. */ | |
private boolean _doDrops = true; | |
/** | |
* Determines whether to alter the database if it already exists, or re-set it. | |
* | |
* @return <code>true</code> if to alter the database | |
*/ | |
protected boolean isAlterDatabase() | |
{ | |
return _alterDb; | |
} | |
/** | |
* Specifies whether DdlUtils shall alter an existing database rather than clearing it and | |
* creating it new. | |
* | |
* @param alterTheDb <code>true</code> if to alter the database | |
* @ant.not-required Per default an existing database is altered | |
*/ | |
public void setAlterDatabase(boolean alterTheDb) | |
{ | |
_alterDb = alterTheDb; | |
} | |
/** | |
* Determines whether to drop tables and the associated constraints before re-creating them | |
* (this implies <code>alterDatabase</code> is <code>false</code>). | |
* | |
* @return <code>true</code> if drops shall be performed | |
*/ | |
protected boolean isDoDrops() | |
{ | |
return _doDrops; | |
} | |
/** | |
* Specifies whether tables, external constraints, etc. can be dropped if necessary. | |
* Note that this is only relevant when <code>alterDatabase</code> is <code>false</code>. | |
* | |
* @param doDrops <code>true</code> if drops shall be performed | |
* @ant.not-required Per default database structures are dropped if necessary | |
*/ | |
public void setDoDrops(boolean doDrops) | |
{ | |
_doDrops = doDrops; | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
public void execute(DatabaseTaskBase task, Database model) throws BuildException | |
{ | |
if (getDataSource() == null) | |
{ | |
throw new BuildException("No database specified."); | |
} | |
Platform platform = getPlatform(); | |
boolean isCaseSensitive = platform.isDelimitedIdentifierModeOn(); | |
CreationParameters params = getFilteredParameters(model, platform.getName(), isCaseSensitive); | |
platform.setScriptModeOn(false); | |
// we're disabling the comment generation because we're writing directly to the database | |
platform.setSqlCommentsOn(false); | |
try | |
{ | |
if (isAlterDatabase()) | |
{ | |
Database currentModel = platform.readModelFromDatabase(model.getName(), getCatalogPattern(), getSchemaPattern(), null); | |
platform.alterModel(currentModel, model, params, true); | |
} | |
else | |
{ | |
platform.createModel(model, | |
params, | |
_doDrops, | |
true); | |
} | |
_log.info("Written schema to database"); | |
} | |
catch (Exception ex) | |
{ | |
handleException(ex, ex.getMessage()); | |
} | |
} | |
} |