Mega Code Archive
Injection of datasource
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/**
* 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.superbiz.injection;
import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import javax.ejb.Stateful;
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.List;
import java.util.ArrayList;
@Stateful(name = "Movies")
public class MoviesImpl implements Movies {
/**
* The field name "movieDatabase" matches the DataSource we
* configure in the TestCase via :
* p.put("movieDatabase", "new://Resource?type=DataSource");
*
* This would also match an equivalent delcaration in an openejb.xml:
* <Resource id="movieDatabase" type="DataSource"/>
*
* If you'd like the freedom to change the field name without
* impact on your configuration you can set the "name" attribute
* of the @Resource annotation to "movieDatabase" instead.
*/
@Resource
private DataSource movieDatabase;
@PostConstruct
private void construct() throws Exception {
Connection connection = movieDatabase.getConnection();
try {
PreparedStatement stmt = connection.prepareStatement("CREATE TABLE movie ( director VARCHAR(255), title VARCHAR(255), year integer)");
stmt.execute();
} finally {
connection.close();
}
}
public void addMovie(Movie movie) throws Exception {
Connection conn = movieDatabase.getConnection();
try {
PreparedStatement sql = conn.prepareStatement("INSERT into movie (director, title, year) values (?, ?, ?)");
sql.setString(1, movie.getDirector());
sql.setString(2, movie.getTitle());
sql.setInt(3, movie.getYear());
sql.execute();
} finally {
conn.close();
}
}
public void deleteMovie(Movie movie) throws Exception {
Connection conn = movieDatabase.getConnection();
try {
PreparedStatement sql = conn.prepareStatement("DELETE from movie where director = ? AND title = ? AND year = ?");
sql.setString(1, movie.getDirector());
sql.setString(2, movie.getTitle());
sql.setInt(3, movie.getYear());
sql.execute();
} finally {
conn.close();
}
}
public List<Movie> getMovies() throws Exception {
ArrayList<Movie> movies = new ArrayList<Movie>();
Connection conn = movieDatabase.getConnection();
try {
PreparedStatement sql = conn.prepareStatement("SELECT director, title, year from movie");
ResultSet set = sql.executeQuery();
while ( set.next() ) {
Movie movie = new Movie();
movie.setDirector(set.getString("director"));
movie.setTitle(set.getString("title"));
movie.setYear(set.getInt("year"));
movies.add( movie );
}
} finally {
conn.close();
}
return movies;
}
}
OpenEjBinjection-of-datasource.zip( 14 k)
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