package org.tgdb.model.geneticbackground;
import javax.ejb.*;
//added
import org.tgdb.exceptions.ApplicationException;
import org.tgdb.model.expmodel.ExpModelRemoteHome;
import org.tgdb.project.AbstractTgDbBean;
import org.tgdb.project.project.ProjectRemote;
import org.tgdb.project.project.ProjectRemoteHome;
import org.tgdb.project.user.UserRemoteHome;
import org.tgdb.servicelocator.ServiceLocator;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
import javax.ejb.CreateException;
import javax.ejb.EJBException;
import javax.ejb.FinderException;
import javax.ejb.ObjectNotFoundException;
public class GeneticBackgroundValuesBean extends AbstractTgDbBean implements EntityBean, GeneticBackgroundValuesRemoteBusiness {
private EntityContext context;
private int bid, pid;
private String backname;
private boolean dirty;
private UserRemoteHome userHome;
private ExpModelRemoteHome modelHome;
private ProjectRemoteHome projectHome;
// <editor-fold defaultstate="collapsed" desc="EJB infrastructure methods. Click the + sign on the left to edit the code.">
// TODO Add code to acquire and use other enterprise resources (DataSource, JMS, enterprise beans, Web services)
// TODO Add business methods
// TODO Add create methods
/**
* @see javax.ejb.EntityBean#setEntityContext(javax.ejb.EntityContext)
*/
public void setEntityContext(EntityContext aContext) {
context = aContext;
userHome = (UserRemoteHome)locator.getHome(ServiceLocator.Services.USER);
modelHome = (ExpModelRemoteHome)locator.getHome(ServiceLocator.Services.EXPMODEL);
projectHome = (ProjectRemoteHome)locator.getHome(ServiceLocator.Services.PROJECT);
}
/**
* @see javax.ejb.EntityBean#ejbActivate()
*/
public void ejbActivate() {
}
/**
* @see javax.ejb.EntityBean#ejbPassivate()
*/
public void ejbPassivate() {
}
/**
* @see javax.ejb.EntityBean#ejbRemove()
*/
public void ejbRemove() {
//open connection.
makeConnection();
//declare ps.
PreparedStatement ps = null;
try {
//prepare the query
ps = conn.prepareStatement("delete from genetic_back_values where bid=?");
//replace the questionmark
ps.setInt(1, getBid());
//execute the query.
ps.execute();
} catch (Exception e) {
//if something goes wrong tell me about it.
throw new EJBException("GeneticBackgroundValuesBean#ejbRemove: Unable to delete Genetic Background Strain. \n"+e.getMessage());
} finally {
releaseConnection();
}
}
/**
* @see javax.ejb.EntityBean#unsetEntityContext()
*/
public void unsetEntityContext() {
context = null;
}
/**
* @see javax.ejb.EntityBean#ejbLoad()
*/
public void ejbLoad() {
//open connection.
makeConnection();
//get the primary key+store to Integer pk
Integer pk = (Integer)context.getPrimaryKey();
//declare ps.
PreparedStatement ps = null;
try {
//prepare query
ps = conn.prepareStatement("select bid, backname, pid " +
"from genetic_back_values where bid=?");
//replace ? with the primary key's int value (pk is an Integer).
ps.setInt(1, pk.intValue());
//store the result of the query in rs.
ResultSet rs = ps.executeQuery();
//if the cursor of the resultset can be moved to the next position (row)
//than we assume that all required data from the query have successfully returned(???).
if (rs.next()) {
bid = rs.getInt("bid");
backname = rs.getString("backname");
pid = rs.getInt("pid");
dirty = false;
} else
throw new EJBException("GeneticBackgroundValuesBean#ejbLoad: Error loading Genetic Background Value Tuple");
} catch (Exception e) {
throw new EJBException("GeneticBackgroundValuesBean#ejbLoad: error loading Genetic Background Value. \n"+e.getMessage());
} finally {
releaseConnection();
}
}
/**
* @see javax.ejb.EntityBean#ejbStore()
*/
public void ejbStore() {
if (dirty)
{
makeConnection();
PreparedStatement ps = null;
try {
//prepare the query.
ps = conn.prepareStatement("update genetic_back_values set backname=?, pid=? " +
"where bid=?");
//replace the ? with the following order.
ps.setString(1, backname);
ps.setInt(2, pid);
ps.setInt(3, bid);
ps.execute();
} catch (Exception e) {
throw new EJBException("GeneticBackgroundValuesBean#ejbStore: error storing Genetic Background Values. \n"+e.getMessage());
} finally {
releaseConnection();
dirty = false;
}
}
}
// </editor-fold>
/**
* See EJB 2.0 and EJB 2.1 section 12.2.5
*/
public Integer ejbFindByPrimaryKey(Integer aKey) throws FinderException {
makeConnection();
PreparedStatement ps = null;
ResultSet result = null;
try {
ps = conn.prepareStatement("select bid from genetic_back_values where bid = ?");
ps.setInt(1, aKey.intValue());
result = ps.executeQuery();
if (!result.next()) {
throw new ObjectNotFoundException("GeneticBackgroundValuesBean#ejbFindByPrimaryKey: Cannot find Genetic Background value. No next in resultset");
}
} catch (SQLException se) {
throw new FinderException("GeneticBackgroundBeanValues#ejbFindByPrimaryKey: Cannot find Genetic Background value. \n"+se.getMessage());
} finally {
releaseConnection();
}
return aKey;
}
public int getBid() {
return bid;
}
public String getBackname() {
return backname;
}
public void setBackname(String backname) {
this.backname = backname;
dirty=true;
}
public int getPid() {
return pid;
}
public void setPid(int pid) {
this.pid = pid;
dirty=true;
}
//business method to track down project.
public ProjectRemote getProject() throws ApplicationException
{
try
{
ProjectRemote prj = projectHome.findByPrimaryKey(new Integer(pid));
return prj;
}
catch (Exception e)
{
throw new ApplicationException("Could not get project");
}
}
public Integer ejbCreate(int bid, String backname, ProjectRemote project) throws javax.ejb.CreateException {
makeConnection();
//pk=the Integer that the method will return.
Integer pk = null;
try {
this.bid = bid;
this.backname = backname;
//this.pid = pid;
this.pid = project.getPid();
//pk is the eid=primary key for genetic_back table.
pk = new Integer(bid);
//prepare the SQL query of the create method.
PreparedStatement ps = conn.prepareStatement("insert into genetic_back_values (bid,backname,pid) values (?,?,?)");
//replace the questionmarks with the following data...
ps.setInt(1, bid);
ps.setString(2, backname);
ps.setInt(3, pid);
//execute the statement.
ps.execute();
dirty = false;
} catch (Exception e) {
e.printStackTrace();
throw new CreateException("GeneticBackgroundBeanValues#ejbCreate: Unable to create Genetic Background Strain. \n"+e.getMessage());
} finally {
releaseConnection();
}
return pk;
}
public void ejbPostCreate(int bid, String backname, ProjectRemote project) throws javax.ejb.CreateException {
//TODO implement ejbPostCreate
}
//-------finder methods--------
public java.util.Collection ejbFindByProject(int pid) throws javax.ejb.FinderException {
makeConnection();
Collection arr = new ArrayList();
PreparedStatement ps = null;
ResultSet result = null;
try {
ps = conn.prepareStatement("select bid from genetic_back_values where pid = ? order by backname");
ps.setInt(1,pid);
result = ps.executeQuery();
while (result.next()) {
arr.add(new Integer(result.getInt("bid")));
}
} catch (SQLException se) {
throw new FinderException("GeneticBackgroundBeanValues#ejbFindByProject: Cannot find genetic backgrounds for project "+pid+" \n"+se.getMessage());
} finally {
releaseConnection();
}
return arr;
}
}