?? readaheadbean.java
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package org.jboss.cmp2.crimeportal;
import java.util.Collection;
import java.util.Iterator;
import javax.ejb.CreateException;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import javax.ejb.EJBException;
import javax.ejb.FinderException;
import javax.naming.InitialContext;
import javax.transaction.Status;
import javax.transaction.SystemException;
import javax.transaction.UserTransaction;
import org.apache.log4j.Category;
public class ReadAheadBean implements SessionBean
{
private SessionContext ctx;
private GangsterHome gangsterHome;
public void ejbCreate() throws CreateException
{
try
{
InitialContext jndi = new InitialContext();
gangsterHome = (GangsterHome) jndi.lookup("crimeportal/Gangster");
}
catch (Exception e)
{
throw new CreateException("Error while looking up GangsterHome");
}
}
public String createGangsterHtmlTable_none() throws FinderException
{
StringBuffer table = new StringBuffer();
table.append("<table>");
Collection gangsters = gangsterHome.findAll_none();
for (Iterator iter = gangsters.iterator(); iter.hasNext();)
{
Gangster gangster = (Gangster) iter.next();
table.append("<tr>");
table.append("<td>").append(gangster.getName());
table.append("</td>");
table.append("<td>").append(gangster.getNickName());
table.append("</td>");
table.append("<td>").append(gangster.getBadness());
table.append("</td>");
table.append("</tr>");
}
table.append("</table>");
return table.toString();
}
public String createGangsterHtmlTable_onfind() throws FinderException
{
StringBuffer table = new StringBuffer();
table.append("<table>");
Collection gangsters = gangsterHome.findAll_onfind();
for (Iterator iter = gangsters.iterator(); iter.hasNext();)
{
Gangster gangster = (Gangster) iter.next();
table.append("<tr>");
table.append("<td>").append(gangster.getName()).append("</td>");
table.append("<td>").append(gangster.getNickName()).append("</td>");
table.append("<td>").append(gangster.getBadness()).append("</td>");
table.append("</tr>");
}
table.append("</table>");
return table.toString();
}
public String createGangsterHtmlTable_onload() throws FinderException
{
StringBuffer table = new StringBuffer();
table.append("<table>");
Collection gangsters = gangsterHome.findAll_onload();
for (Iterator iter = gangsters.iterator(); iter.hasNext();)
{
Gangster gangster = (Gangster) iter.next();
table.append("<tr>");
table.append("<td>").append(gangster.getName()).append("</td>");
table.append("<td>").append(gangster.getNickName()).append("</td>");
table.append("<td>").append(gangster.getBadness()).append("</td>");
table.append("</tr>");
}
table.append("</table>");
return table.toString();
}
public String createGangsterHangoutHtmlTable() throws FinderException
{
StringBuffer table = new StringBuffer();
table.append("<table>");
Collection gangsters = gangsterHome.findAll_onfind();
for (Iterator iter = gangsters.iterator(); iter.hasNext();)
{
Gangster gangster = (Gangster) iter.next();
Location hangout = gangster.getHangout();
table.append("<tr>");
table.append("<td>").append(gangster.getName());
table.append("</td>");
table.append("<td>").append(gangster.getNickName());
table.append("</td>");
table.append("<td>").append(gangster.getBadness());
table.append("</td>");
table.append("<td>").append(hangout.getCity());
table.append("</td>");
table.append("<td>").append(hangout.getState());
table.append("</td>");
table.append("<td>").append(hangout.getZipCode());
table.append("</td>");
table.append("</tr>");
}
table.append("</table>");
return table.toString();
}
public String createGangsterHtmlTable_no_tx() throws FinderException
{
StringBuffer table = new StringBuffer();
table.append("<table>");
Collection gangsters = gangsterHome.findFour();
for (Iterator iter = gangsters.iterator(); iter.hasNext();)
{
Gangster gangster = (Gangster) iter.next();
table.append("<tr>");
table.append("<td>").append(gangster.getName());
table.append("</td>");
table.append("<td>").append(gangster.getNickName());
table.append("</td>");
table.append("<td>").append(gangster.getBadness());
table.append("</td>");
table.append("</tr>");
}
table.append("</table>");
return table.toString();
}
public String createGangsterHtmlTable_with_tx() throws FinderException
{
UserTransaction tx = null;
try
{
InitialContext ctx = new InitialContext();
tx = (UserTransaction) ctx.lookup("UserTransaction");
tx.begin();
String table = createGangsterHtmlTable_no_tx();
if (tx.getStatus() == Status.STATUS_ACTIVE)
{
tx.commit();
}
return table;
}
catch (Exception e)
{
try
{
if (tx != null) tx.rollback();
}
catch (SystemException unused)
{
// eat the exception we are exceptioning out anyway
}
if (e instanceof FinderException)
{
throw (FinderException) e;
}
if (e instanceof RuntimeException)
{
throw (RuntimeException) e;
}
throw new EJBException(e);
}
}
public void setSessionContext(SessionContext ctx)
{
ctx = ctx;
}
public void ejbActivate()
{
}
public void ejbPassivate()
{
}
public void ejbRemove()
{
}
}
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