org.apache.openejb.test.stateless.BeanTxStatelessBean Maven / Gradle / Ivy
/**
* 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.openejb.test.stateless;
import java.rmi.RemoteException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.ejb.CreateException;
import javax.ejb.EJBException;
import javax.ejb.SessionContext;
import javax.naming.InitialContext;
import javax.sql.DataSource;
import javax.transaction.RollbackException;
import javax.transaction.UserTransaction;
import org.apache.openejb.test.object.Account;
import org.apache.openejb.test.object.Transaction;
public class BeanTxStatelessBean implements javax.ejb.SessionBean{
private String name;
private SessionContext ejbContext;
private InitialContext jndiContext;
public final String jndiDatabaseEntry = "jdbc/stateless/beanManagedTransaction/database";
//=============================
// Home interface methods
//
//
// Home interface methods
//=============================
//=============================
// Remote interface methods
//
public Transaction getUserTransaction() throws RemoteException{
UserTransaction ut = null;
try{
ut = ejbContext.getUserTransaction();
} catch (IllegalStateException ise){
throw new RemoteException(ise.getMessage());
}
if (ut == null) return null;
return new Transaction(ut);
}
public Transaction jndiUserTransaction() throws RemoteException{
UserTransaction ut = null;
try{
ut = (UserTransaction)jndiContext.lookup("java:comp/UserTransaction");
} catch (Exception e){
throw new RemoteException(e.getMessage());
}
if (ut == null) return null;
return new Transaction(ut);
}
public void openAccount(Account acct, Boolean rollback) throws RemoteException, RollbackException{
try{
DataSource ds = (DataSource)javax.rmi.PortableRemoteObject.narrow( jndiContext.lookup("java:comp/env/database"), DataSource.class);
Connection con = ds.getConnection();
try {
UserTransaction ut = ejbContext.getUserTransaction();
/*[1] Begin the transaction */
ut.begin();
/*[2] Update the table */
PreparedStatement stmt = con.prepareStatement("insert into Account (SSN, First_name, Last_name, Balance) values (?,?,?,?)");
try {
stmt.setString(1, acct.getSsn());
stmt.setString(2, acct.getFirstName());
stmt.setString(3, acct.getLastName());
stmt.setInt(4, acct.getBalance());
stmt.executeUpdate();
} finally {
stmt.close();
}
/*[3] Commit or Rollback the transaction */
if (rollback.booleanValue()) ut.setRollbackOnly();
/*[4] Commit or Rollback the transaction */
ut.commit();
} finally {
con.close();
}
} catch (RollbackException re){
throw re;
} catch (Exception e){
e.printStackTrace();
throw new RemoteException("[Bean] "+e.getClass().getName()+" : "+e.getMessage());
}
}
public Account retreiveAccount(String ssn) throws RemoteException {
Account acct = new Account();
try{
DataSource ds = (DataSource)javax.rmi.PortableRemoteObject.narrow( jndiContext.lookup("java:comp/env/database"), DataSource.class);
Connection con = ds.getConnection();
try {
PreparedStatement stmt = con.prepareStatement("select * from Account where SSN = ?");
try {
stmt.setString(1, ssn);
ResultSet rs = stmt.executeQuery();
if (!rs.next()) return null;
acct.setSsn( rs.getString(1) );
acct.setFirstName( rs.getString(2) );
acct.setLastName( rs.getString(3) );
acct.setBalance( rs.getInt(4) );
} finally {
stmt.close();
}
} finally {
con.close();
}
} catch (Exception e){
e.printStackTrace();
throw new RemoteException("[Bean] "+e.getClass().getName()+" : "+e.getMessage());
}
return acct;
}
//
// Remote interface methods
//=============================
//=================================
// SessionBean interface methods
//
/**
*
* @param name
* @exception javax.ejb.CreateException
*/
public void ejbCreate() throws javax.ejb.CreateException{
try {
jndiContext = new InitialContext();
} catch (Exception e){
throw new CreateException("Can not get the initial context: "+e.getMessage());
}
}
/**
* Set the associated session context. The container calls this method
* after the instance creation.
*/
public void setSessionContext(SessionContext ctx) throws EJBException,RemoteException {
ejbContext = ctx;
}
/**
* A container invokes this method before it ends the life of the session
* object. This happens as a result of a client's invoking a remove
* operation, or when a container decides to terminate the session object
* after a timeout.
*/
public void ejbRemove() throws EJBException,RemoteException {
}
/**
* The activate method is called when the instance is activated
* from its "passive" state. The instance should acquire any resource
* that it has released earlier in the ejbPassivate() method.
*/
public void ejbActivate() throws EJBException,RemoteException {
}
/**
* The passivate method is called before the instance enters
* the "passive" state. The instance should release any resources that
* it can re-acquire later in the ejbActivate() method.
*/
public void ejbPassivate() throws EJBException,RemoteException {
}
//
// SessionBean interface methods
//==================================
public String remove(String arg) {
return arg;
}
}