DisableTriggersChangeSet.java
/**
* The contents of this file are subject to the OpenMRS Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://license.openmrs.org
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* Copyright (C) OpenMRS, LLC. All Rights Reserved.
*/
package org.openmrs.util.databasechange;
import java.sql.DatabaseMetaData;
import java.sql.ResultSet;
import java.sql.SQLException;
import liquibase.change.custom.CustomTaskChange;
import liquibase.database.Database;
import liquibase.database.jvm.JdbcConnection;
import liquibase.exception.CustomChangeException;
import liquibase.exception.DatabaseException;
import liquibase.exception.SetupException;
import liquibase.exception.ValidationErrors;
import liquibase.resource.ResourceAccessor;
/**
* Disables all triggers for the current schema
* Postgres does not have a call to disable all foreign key constraints. This
* changeset alters table and disable triggers for all tables.
*/
public class DisableTriggersChangeSet implements CustomTaskChange {
@Override
public void execute(Database database) throws CustomChangeException {
JdbcConnection connection = (JdbcConnection) database.getConnection();
DatabaseMetaData metadata;
try {
metadata = connection.getMetaData();
String[] types = { "TABLE" };
ResultSet rs = metadata.getTables(null, null, "%", types);
while (rs.next()) {
String tableName = rs.getString(3);
connection.prepareStatement("ALTER TABLE " + tableName + " DISABLE TRIGGER ALL").execute();
}
}
catch (DatabaseException ex) {
throw new CustomChangeException("Error disabling trigger: " + ex);
}
catch (SQLException ex) {
throw new CustomChangeException("Error disabling trigger: " + ex);
}
}
@Override
public String getConfirmationMessage() {
return "Finished disabling triggers for all tables";
}
@Override
public void setUp() throws SetupException {
}
@Override
public void setFileOpener(ResourceAccessor resourceAccessor) {
}
@Override
public ValidationErrors validate(Database database) {
return new ValidationErrors();
}
}