Re: NEWBIE QUESTION:Configuring a web application, that is not contained in a WAR file
the web app structure should look something like this(which is really just an unpacked WAR) web-app/ *.html, *.jsp, ... WEB-INF/ web.xml classes/ loose classes(override lib directory jarred classes) lib/ jar and zip files of classes Then I believe you need to add a line to server.xml in orion/config that looks like this: application name="my app" path="path/to/my/app" deployment-directory="path/to/my/app/deploy" / Hope this helps -Matt
Re: EJB vs Servlets
I would say that using J2EE architecture and EJB is most useful if you don't have specific performance needs. When you don't have leeway on performance you have to bite the bullet and use whatever gives you the performance you need. Obviously EJB2.0 OR mapping is a huge key, this allows the full usage of CMP as it's intended. CMP is a huge benefit since it puts more code on the shoulders of the server vendor and not the application developer(or a separate team of developers). And using a standardized architecture that is supported by multiple app server vendors(who are in multiple price/quality arenas) is a benefit in my eyes as well. In the past we've done our own code generation for OR mapping, and at first it did not handle transactions and connection pooling for you. We had to upgrade it and maintain it to provide these features. With J2EE servers you get all that stuff without having to maintain the code for it -- we've upgraded our tier that has this code about 5 times over the past year and a half! Probably the majority of us out there right now are inbetween a pre-J2EE/EJB solution and a post solution. I'm looking forward to EJB2.0 and plan on writing or using one code-generator for CMP Entity beans and possibly generating Session Beans as well, or Session Bean shells for the different interfaces and such. This will take care of the 'time-to-develop' problem, remember, the use of EJBs is supposed to cut development/maintenance time. Also you get a fully distributed system(probably the performance hit) which has it's benefits if the application scope is right. Can the tiers of business code you have written be accessed(re-used) by any app running on any machine, no matter who develops it(VB team vs. Swing team vs. JSP or ASP teams)? If you've implemented them using RMI then you may be able to, but again you end up doing the maintenance and upgrades on that code too. Even with all the benefits I've listed, I'm not developing production code with EJBs just yet - one prototype application is all - the bleeding edge of EJB looks to be a sharp one if the project/application isn't right for it. The bottom line is time to market and a solution that fits the price - bigger customers can afford to wait a bit and pay for WebLogic and the like - but this list is most probably filled with us smaller company types who cater to smaller customers. Hopefully this info is useful - Matt
Re: Client application Please Help
It seems that you just need to use the standard structure for your ejb jar and client app jar files. The ejb jar file structure is shown in the orion and cmp primers on www.jollem.com -- and the application client jar should be structured like this: app-client.jar app-client.class META-INF/ application-client.xml hope this helps Matt "Daniel C. DiCesare" wrote: Frank, I checked out your example but I am continuing to experience problems. Here is what I have. I have included the script for my xml files below. I have deployed an EJB called Team onto Orion. It sits in a EAR file which within it has a Team.jar file. The JAR file contains the following: Team.class - ( remote interface ) TeamHome.class - ( home interface ) TeamEJB - ( EJB ) ejb-jar.xml - ( deployment descriptor ) I then created a team-client.jar which consists of the following: TeamClient.class - ( client ) application-client.xml - ( client xml ) In my TeamClient I attempt to connect to the TeamEJB as follows: Context ic = new InitialContext(); Object obj = ic.lookup( "TeamBean" ); _TeamHome = ( TeamHome )PortableRemoteObject.narrow( obj, TeamHome.class ); When I try to run the client I get the following message: javax.naming.NamingException: Error reading application-client descriptor: No location specified and no suitable instance of the type 'Team' found for the ejb-ref TeamBean at com.evermind.server.ApplicationClientInitialContextFactory.getInitialContext (JAX, Compiled Code) at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:672) at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:250) at javax.naming.InitialContext.init(InitialContext.java:226) at javax.naming.InitialContext.init(InitialContext.java:182) at TeamRandomTrade.main(TeamRandomTrade.java, Compiled Code) Can you or anyone please advise as to what I am doing wrong? Thanks in advance. -Danno The ejb-jar.xml looks as follows: ?xml version="1.0" encoding="UTF-8"? !DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 1.1//EN' 'http://java.sun.com/j2ee/dtds/ejb-jar_1_1.dtd' ejb-jar descriptionno description/description display-nameTeamEJB/display-name enterprise-beans entity descriptionno description/description display-nameTeamBean/display-name ejb-nameTeamBean/ejb-name homeTeamHome/home remoteTeam/remote ejb-classTeamEJB/ejb-class persistence-typeBean/persistence-type prim-key-classjava.lang.Integer/prim-key-class reentrantFalse/reentrant resource-ref descriptionA description for ResourceRefName/description res-ref-namejdbc/SF/res-ref-name res-typejavax.sql.DataSource/res-type res-authContainer/res-auth /resource-ref /entity /enterprise-beans /ejb-jar My application-client.xml file looks as follows: ?xml version="1.0"? !DOCTYPE application-client PUBLIC "-//Sun Microsystems, Inc.//DTD J2EE Application Client 1.2//EN" "http://java.sun.com/j2ee/dtds/application-client_1_2.dtd" application-client display-nameSportsFund/display-name description/description ejb-ref ejb-ref-nameTeamBean/ejb-ref-name ejb-ref-typeSession/ejb-ref-type homeTeamHome/home remoteTeam/remote /ejb-ref /application-client
Re: Deployment confusions
Richard Landon wrote: I need a command-line method to deploy the ear file once it gets built into the Orion server. for this you just put the ear file in the applications directory and put one line for each ear into server.xml. example: application name="ip" path="../applications/ip-app.ear" / I need a command-line method to acquire the client support files from the Orion server. from what I gathered off your email yesterday you are used to getting a client.jar file from Sun's J2EE RI. I haven't found orion to do this for me so I just create my own client jars by myself. example structure: my-application-client.jar J2EEClient.class META-INF MANIFEST.MF application-client.xml I need a command-line method to invoke a EJB client(s). to invoke ejb clients I write a shell script that sets any needed classpath for the client program(this must include orion.jar from what I remember) and then have the script execute my java program(ejb client) with the inline classpath argument and a system property for the initial context factory. example: CLASSPATH=orion.jar:my-entity-ejb.jar:my-session-ejb.jar:my-application-client.jar java -classpath $CLASSPATH -Djava.naming.factory.initial=com.evermind.server.ApplicationClientInitialContextFactory my.package.MyProgramName Also there is orionsupport web page at www.orionsupport.com site where you may get more information. It seems to me that you're assuming questions posted to the list must be answered and answered correctly, however, the nature of this mailing list is a community list where people exchange questions and answers out of the goodness of their hearts(like give a penny take a penny). There is no guaranteed support on this type of mailing list. Hopefully my answers are helpful - Matt
