| <html><head><META http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>OpenEJB -- CMP Guide</title><link href="default.css" rel="stylesheet"><link href="/images/favicon.ico" rel="SHORTCUT ICON"></head><body marginwidth="0" marginheight="0" leftmargin="0" bottommargin="0" topmargin="0" vlink="#6763a9" link="#6763a9" bgcolor="#ffffff"><a name="top"></a><table height="400" width="712" cellspacing="0" cellpadding="0" border="0"><tr><td bgcolor="#7270c2" align="left" valign="top" width="20"><img border="0" height="1" width="1" src="images/dotTrans.gif"></td><td bgcolor="#7270c2" align="left" valign="top" width="95"><img border="0" height="1" width="1" src="images/dotTrans.gif"></td><td align="left" valign="top" width="7"><img height="1" width="1" border="0" src="images/dotTrans.gif"></td><td align="left" valign="top" width="40"><img border="0" height="6" width="40" src="images/dotTrans.gif"></td><td bgcolor="#5A5CB8" align="left" valign="top" width="430"><img border="0" height="6" width="430" src="images/top_2.gif"></td><td bgcolor="#E24717" align="left" valign="top" width="120"><img src="images/top_3.gif" width="120" height="6" border="0"></td></tr><tr><td align="left" valign="top" bgcolor="#7270c2" width="20"><img height="1" width="1" border="0" src="images/dotTrans.gif"></td><td align="left" valign="top" bgcolor="#7270c2" width="95"><img height="1" width="1" border="0" src="images/dotTrans.gif"></td><td align="left" valign="top" bgcolor="#ffffff" width="7"></td><td align="left" valign="top" width="40"><img border="0" height="1" width="1" src="images/dotTrans.gif"></td><td align="left" valign="middle" width="430"><a href="faq.html"><span class="menuTopOff">[ f a q ]</span></a> <a href="http://wiki.codehaus.org/openejb"><span class="menuTopOff">[ w i k i ]</span></a> <a href="http://archive.openejb.codehaus.org/user/"><span class="menuTopOff">[ l i s t s ]</span></a> <a href="http://cvs.openejb.org/"><span class="menuTopOff">[ c v s ]</span></a> <a href="http://jira.codehaus.org/secure/BrowseProject.jspa?id=10401"><span class="menuTopOff">[ b u g s ]</span></a> <br><img border="0" height="2" width="1" src="images/dotTrans.gif"></td><td align="left" valign="top" height="20" width="120"> </td></tr><tr><td align="left" valign="top" bgcolor="#7270c2" width="20"><img border="0" height="3" width="20" src="images/dotTrans.gif"></td><td align="left" valign="top" bgcolor="#7270c2" width="95"><img border="0" height="3" width="105" src="images/line_sm.gif"></td><td align="left" valign="top" bgcolor="#a9a5de" width="7"><img border="0" height="3" width="7" src="images/line_sm.gif"></td><td align="left" valign="top" width="40"><img border="0" height="3" width="40" src="images/line_light.gif"></td><td align="left" valign="top" width="430"><img border="0" height="3" width="430" src="images/line_light.gif"></td><td align="left" valign="top" width="120"><img height="1" width="1" border="0" src="images/dotTrans.gif"></td></tr><tr><td align="left" valign="top" bgcolor="#7270c2"><img border="0" height="10" width="20" src="images/dotTrans.gif"></td><td align="left" valign="top" bgcolor="#7270c2" width="95"><img border="0" height="2" width="1" src="images/dotTrans.gif"><br><table cellspacing="0" cellpadding="0" border="0"><tr><td align="left" valign="top"><span class="subMenuOn">Main</span></td></tr><tr><td align="left" valign="top"><a href="index.html"><span class="subMenuOff"> |
| Welcome!</span></a></td></tr><tr><td align="left" valign="top"><a href="download.html"><span class="subMenuOff"> |
| Download</span></a></td></tr><tr><td align="left" valign="top"><a href="lists.html"><span class="subMenuOff"> |
| Mailing Lists</span></a></td></tr><tr><td align="left" valign="top"><a href="cvs.html"><span class="subMenuOff"> |
| Source Code</span></a></td></tr><tr><td align="left" valign="top"><a href="contributors.html"><span class="subMenuOff"> |
| The Team</span></a></td></tr><tr><td align="left" valign="top"><a href="status.html"><span class="subMenuOff"> |
| Status</span></a></td></tr></table><table cellspacing="0" cellpadding="0" border="0"><tr><td align="left" valign="top"><span class="subMenuOn">Users</span></td></tr><tr><td align="left" valign="top"><a href="quickstart.html"><span class="subMenuOff"> |
| Quickstart</span></a></td></tr><tr><td align="left" valign="top"><a href="hello-world.html"><span class="subMenuOff"> |
| Hello World!</span></a></td></tr><tr><td align="left" valign="top"><a href="cmp_entity_postgresql.html"><span class="subMenuOff"> |
| CMP Example</span></a></td></tr><tr><td align="left" valign="top"><a href="cmp_guide.html"><span class="subMenuOff"> |
| CMP Guide</span></a></td></tr><tr><td align="left" valign="top"><a href="deploy.html"><span class="subMenuOff"> |
| Deploy</span></a></td></tr><tr><td align="left" valign="top"><a href="start-command.html"><span class="subMenuOff"> |
| Startup</span></a></td></tr><tr><td align="left" valign="top"><a href="validate.html"><span class="subMenuOff"> |
| Validation</span></a></td></tr><tr><td align="left" valign="top"><a href="config_containers.html"><span class="subMenuOff"> |
| Configuration</span></a></td></tr><tr><td align="left" valign="top"><a href="properties.html"><span class="subMenuOff"> |
| Properties</span></a></td></tr></table><table cellspacing="0" cellpadding="0" border="0"><tr><td align="left" valign="top"><span class="subMenuOn">Servers</span></td></tr><tr><td align="left" valign="top"><a href="embedded.html"><span class="subMenuOff"> |
| Local Server</span></a></td></tr><tr><td align="left" valign="top"><a href="remote-server.html"><span class="subMenuOff"> |
| Remote Server</span></a></td></tr><tr><td align="left" valign="top"><a href="tomcat.html"><span class="subMenuOff"> |
| Tomcat</span></a></td></tr><tr><td align="left" valign="top"><a href="geronimo.html"><span class="subMenuOff"> |
| Geronimo</span></a></td></tr></table><table cellspacing="0" cellpadding="0" border="0"><tr><td align="left" valign="top"><span class="subMenuOn">Integrators</span></td></tr><tr><td align="left" valign="top"><a href="whyopenejb.html"><span class="subMenuOff"> |
| Why OpenEJB</span></a></td></tr><tr><td align="left" valign="top"><a href="containersystem.html"><span class="subMenuOff"> |
| Overview</span></a></td></tr><tr><td align="left" valign="top"><a href="design_openejb.html"><span class="subMenuOff"> |
| Design</span></a></td></tr><tr><td align="left" valign="top"><a href="OpenEJB_presentaion.ppt"><span class="subMenuOff"> |
| Presentation</span></a></td></tr></table><img border="0" height="15" width="1" src="images/dotTrans.gif"><br><img border="0" height="3" width="105" src="images/line_sm.gif"><br><A href="http://codehaus.org"><IMG alt="The Codehaus" border="0" height="17" width="88" src="http://www.openejb.org/codehaus-smaller.png"></A></td><td align="left" valign="top" bgcolor="#a9a5de" width="7"> </td><td align="left" valign="top" width="40"> </td><td valign="top" width="430" rowspan="4"><table width="430" cellspacing="0" cellpadding="0" border="0" rows="2" cols="1"><tr><td align="left" valign="top"><br><img width="200" vspace="0" src="./images/logo_ejb2.gif" hspace="0" height="55" border="0"><br><img src="images/dotTrans.gif" hspace="0" height="7" border="0"><br><span class="pageTitle">OpenEJB -- CMP Guide</span><br><img src="images/dotTrans.gif" hspace="0" height="1" border="0"></td></tr></table><p></p><br><a name="Introduction"><h2>Introduction</h2></a> |
| <p><span class="bodyBlack"> |
| OpenEJB uses Castor JDO for CMP persistence. The CMP config files are all |
| Castor controlled files (<a href="http://www.castor.org">www.castor.org</a>). |
| There is no difference between configuring a CMP EntityBean in OpenEJB |
| than with any other Castor controlled java object, so anything you learn |
| about Castor's config files will be applicable. |
| </span></p> |
| <a name="The basics"><h2>The basics</h2></a> |
| <p><span class="bodyBlack">Declare a CMP Container in your openejb.conf for the database that you |
| wish to work with. |
| <table cellspacing="2" cellpadding="2" border="0"><tr><td height="5" colspan="2"></td></tr><span class="bodyGrey"> |
| <tr><td width="10" valign="top" align="left"><img src="images/grayDot.gif"></td><td valign="top" align="left"><span class="bodyBlack"><a href="config_containers.html">Declaring containers</a></span></td></tr> |
| </span></table> |
| </span></p> |
| <p><span class="bodyBlack">When declaring a new CMP Container to work with a specific database, you |
| need to setup two Castor JDO database files for it. |
| <table cellspacing="2" cellpadding="2" border="0"><tr><td height="5" colspan="2"></td></tr><span class="bodyGrey"> |
| <tr><td width="10" valign="top" align="left"><img src="images/grayDot.gif"></td><td valign="top" align="left"><span class="bodyBlack"><a href="cmp_dbfiles.html">Database files</a></span></td></tr> |
| <tr><td width="10" valign="top" align="left"><img src="images/grayDot.gif"></td><td valign="top" align="left"><span class="bodyBlack"><a href="http://www.castor.org/database-conf.html">File syntax</a></span></td></tr> |
| </span></table> |
| </span></p> |
| <p><span class="bodyBlack">You'll want to make sure you set the 'engine' attribute to the |
| appropriate database name. |
| </span></p> |
| <p><span class="bodyBlack">When deploying an EntityBean, you need to create a Castor JDO mapping file |
| that maps it to the database tables. |
| <table cellspacing="2" cellpadding="2" border="0"><tr><td height="5" colspan="2"></td></tr><span class="bodyGrey"> |
| <tr><td width="10" valign="top" align="left"><img src="images/grayDot.gif"></td><td valign="top" align="left"><span class="bodyBlack"><a href="http://www.castor.org/jdo-mapping.html">Mapping file syntax</a></span></td></tr> |
| <tr><td width="10" valign="top" align="left"><img src="images/grayDot.gif"></td><td valign="top" align="left"><span class="bodyBlack"><a href="http://www.castor.org/types.html">Supported data types</a></span></td></tr> |
| <tr><td width="10" valign="top" align="left"><img src="images/grayDot.gif"></td><td valign="top" align="left"><span class="bodyBlack"><a href="http://www.castor.org/key-generator.html">Handling primary keys</a></span></td></tr> |
| </span></table> |
| </span></p> |
| <p><span class="bodyBlack"> The most common mistake with these files is not setting the 'key-generator' |
| attribute to one that works with your database. |
| </span></p> |
| <p><span class="bodyBlack">If your EntityBean has any ejbFind methods, you will need to supply an OQL |
| statement for each find method and put it in your |
| <a href="faq_openejb-jar.html">openejb-jar.xml</a> file. |
| <table cellspacing="2" cellpadding="2" border="0"><tr><td height="5" colspan="2"></td></tr><span class="bodyGrey"> |
| <tr><td width="10" valign="top" align="left"><img src="images/grayDot.gif"></td><td valign="top" align="left"><span class="bodyBlack"><a href="faq_cmp.html#finders">Mapping finder methods</a></span></td></tr> |
| <tr><td width="10" valign="top" align="left"><img src="images/grayDot.gif"></td><td valign="top" align="left"><span class="bodyBlack"><a href="http://www.castor.org/oql.html">OQL syntax</a></span></td></tr> |
| </span></table> |
| </span></p> |
| </td><td align="left" valign="top" height="5" width="120"> |
| |
| |
| |
| </td></tr><tr height="5"><td align="left" valign="top" bgcolor="#7270c2" height="5" width="20"> </td><td valign="top" bgcolor="#7270c2" height="5" width="95"> </td><td align="left" valign="top" bgcolor="#a9a5de" height="5" width="7"> </td><td align="left" valign="top" height="5" width="40"> </td><td align="left" valign="top" height="5" width="120"> </td></tr><tr><td align="left" valign="top" bgcolor="#7270c2" height="5" width="20"> </td><td align="left" valign="top" bgcolor="#7270c2" width="95"> </td><td align="left" valign="top" bgcolor="#a9a5de" width="7"><img border="0" height="25" width="1" src="images/dotTrans.gif"></td><td align="left" valign="top" width="40"><img border="0" height="25" width="1" src="images/dotTrans.gif"></td><td align="left" valign="top" width="120"> </td></tr><tr height="5"><td align="left" valign="bottom" bgcolor="#7270c2" height="100%" rowspan="2" width="20"><img border="0" height="125" width="20" src="images/stripes1.gif"></td><td align="left" valign="bottom" bgcolor="#7270c2" height="100%" rowspan="2" width="95"><img border="0" height="125" width="105" src="images/stripe105.gif"></td><td align="left" valign="top" bgcolor="#a9a5de" height="100%" rowspan="2" width="7"> </td><td align="left" valign="top" height="100%" width="40"> </td><td align="left" valign="top" height="100%" width="120"> </td></tr><tr height="5"><td align="left" valign="top" height="25" width="40"> </td><td align="left" valign="bottom" height="25" width="430"><br><br><img height="3" width="430" border="0" src="images/line_light.gif"><br><p></p><span class="bodyGrey"><small><notice> |
| OpenEJB is a trademark of the OpenEJB Group. |
| Java, EJB, JDBC, JNDI, JTA, Sun, Sun Microsystems are trademarks or registered |
| trademarks of Sun Microsystems, Inc. in the United States and in other |
| countries. XML, XML Schema, XSLT and related standards are trademarks or registered |
| trademarks of MIT, INRIA, Keio or others, and a product of the World Wide Web |
| Consortium. All other product names mentioned herein are trademarks of their respective |
| owners. |
| </notice><br> <br></small></span><p></p> |
| |
| </td><td align="left" valign="top" height="25" width="120"> </td></tr></table></body></html> |
