| /* |
| |
| Derby - Class org.apache.derbyTesting.functionTests.tests.lang.OptionalToolExample |
| |
| 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. |
| |
| */ |
| |
| package org.apache.derbyTesting.functionTests.tests.lang; |
| |
| import org.apache.derby.iapi.sql.dictionary.OptionalTool; |
| |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.sql.SQLException; |
| |
| /** |
| * <p> |
| * Simple OptionalTool. |
| * </p> |
| */ |
| public class OptionalToolExample implements OptionalTool |
| { |
| /////////////////////////////////////////////////////////////////////////////////// |
| // |
| // CONSTANTS |
| // |
| /////////////////////////////////////////////////////////////////////////////////// |
| |
| /////////////////////////////////////////////////////////////////////////////////// |
| // |
| // STATE |
| // |
| /////////////////////////////////////////////////////////////////////////////////// |
| |
| /////////////////////////////////////////////////////////////////////////////////// |
| // |
| // CONSTRUCTOR |
| // |
| /////////////////////////////////////////////////////////////////////////////////// |
| |
| /** 0-arg constructor required by the OptionalTool contract */ |
| public OptionalToolExample() {} |
| |
| /////////////////////////////////////////////////////////////////////////////////// |
| // |
| // OptionalTool BEHAVIOR |
| // |
| /////////////////////////////////////////////////////////////////////////////////// |
| |
| public void loadTool( String... configurationParameters ) |
| throws SQLException |
| { loadToolMinion( "toString" ); } |
| |
| public void unloadTool( String... configurationParameters ) |
| throws SQLException |
| { unloadToolMinion( "toString" ); } |
| |
| /////////////////////////////////////////////////////////////////////////////////// |
| // |
| // MINIONS |
| // |
| /////////////////////////////////////////////////////////////////////////////////// |
| |
| protected void loadToolMinion( String functionName ) |
| throws SQLException |
| { |
| getDerbyConnection().prepareStatement |
| ( |
| "create function " + functionName + "( intVal int ) returns varchar( 32672 )\n" + |
| "language java parameter style java no sql\n" + |
| "external name 'java.lang.Integer.toString'" |
| ).execute(); |
| |
| } |
| |
| protected void unloadToolMinion( String functionName ) |
| throws SQLException |
| { |
| getDerbyConnection().prepareStatement( "drop function " + functionName ).execute(); |
| } |
| |
| private Connection getDerbyConnection() throws SQLException |
| { |
| return DriverManager.getConnection( "jdbc:default:connection" ); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////// |
| // |
| // NESTED CLASS |
| // |
| /////////////////////////////////////////////////////////////////////////////////// |
| |
| public static final class VariableName extends OptionalToolExample |
| { |
| public void loadTool( String... configurationParameters ) |
| throws SQLException |
| { loadToolMinion( configurationParameters[ 0 ] ); } |
| |
| public void unloadTool( String... configurationParameters ) |
| throws SQLException |
| { unloadToolMinion( configurationParameters[ 0 ] ); } |
| } |
| |
| } |