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Posted to user@beehive.apache.org by "Ricci, Massimiliano (HPS C&I, HP-Italy)" <ma...@hp.com> on 2006/08/04 10:29:19 UTC
RE: EJB Control doesn't work on java class
Hi Chris,
_Probably_ the problem is that the EJB Control need a "container context" to run. Is it possible to add a "container context" to a simple a Java class to use an EJB Control?
Thanks in advance,
Max
> -----Original Message-----
> From: Chris Hogue [mailto:cshogue@gmail.com]
> Sent: 27 July 2006 21:20
> To: Beehive Users
> Subject: Re: EJB Control doesn't work on java class
>
> This actually looks more problematic than it first appears.
> The EJB control (and others) rely on some of the lifecycle
> methods like onAcquire and onRelease to get and release their
> resources.
>
> So unfortunately I don't know of a quick answer to that
> problem outside of a control container, it will take some
> digging. If others have tips on how to accomplish this or
> where to look that would be helpful.
>
> -Chris
>
> On 7/27/06, Ricci, Massimiliano (HPS C&I, HP-Italy)
> <ma...@hp.com> wrote:
> > Hi Chris,
> >
> > I'm retyped the code using programmatic and declarative
> mechanism to instance the control.
> >
> > Unfortunately calling the two method (welcomeDeclarative,
> welcomeProgrammatic) I'm getting in both case the same exception:
> >
> > org.apache.beehive.controls.api.ControlException: Control
> > initialization failure[Contextual service
> > org.apache.beehive.controls.api.context.ResourceContext is not
> > available]
> >
> > Do you have any advice to solve this (two) problems
> (declarative (if is possible) and programmatic)?
> >
> > This is my client class:
> >
> > package controls;
> >
> > import org.apache.beehive.controls.api.bean.Control;
> > import org.apache.beehive.controls.api.bean.Controls;
> > import org.apache.beehive.controls.api.context.ControlThreadContext;
> >
> > public class Prova {
> >
> > @Control
> > private ProvaSessioBeanCtrl provaSessioBeanCtrl;
> >
> > public Prova() throws ClassNotFoundException {
> >
> > try {
> > Controls.initializeClient(null, this, null);
> > } catch (ClassNotFoundException e) {
> >
> > e.printStackTrace();
> > }
> > }
> >
> > public String welcomeProgrammatic(String name) {
> > String ritorno = "bubububu";
> > try {
> >
> > ProvaSessioBeanCtrlBean
> provaSessioBeanCtrl = (ProvaSessioBeanCtrlBean) Controls
> >
> .instantiate(ProvaSessioBeanCtrlBean.class, null,
> >
> ControlThreadContext.getContext(),
> >
> "provaSessioBeanCtrl");
> > ritorno =
> > provaSessioBeanCtrl.welcomeName(name);
> >
> > } catch (Exception ex) {
> > //cnfe.printStackTrace();
> > ritorno = "Exception by
> Programmatic: " + ex.toString();
> > }
> > return ritorno;
> > }
> >
> > public String welcomeDeclarative(String name) {
> > String ritorno = "bububub";
> > try {
> >
> > ritorno =
> provaSessioBeanCtrl.welcomeName(name);
> > } catch (Exception cnfe) {
> > //cnfe.printStackTrace();
> > ritorno = "Exception by
> Declarative: " + cnfe.toString();
> > }
> > return ritorno;
> > }
> >
> > }
> >
> > > -----Original Message-----
> > > From: Chris Hogue [mailto:cshogue@gmail.com]
> > > Sent: mercoledì 26 luglio 2006 16.23
> > > To: Beehive Users
> > > Subject: Re: EJB Control doesn't work on java class
> > >
> > > Hi Max,
> > >
> > > I'm not sure you can use @Control instantiation in a regular Java
> > > class. I don't believe there's anything that triggers the
> > > instantiation. When you run in a page flow or another
> control those
> > > have a "control container" that handles this.
> > >
> > > Have you tried programmatic instantiation as described here?
> > >
> > > http://beehive.apache.org/docs/1.0.1/controls/programming.html
> > > #Programmatic+Instantiation
> > >
> > >
> > > -Chris
> > >
> > >
> > > On 7/26/06, Ricci, Massimiliano (HPS C&I, HP-Italy)
> > > <ma...@hp.com> wrote:
> > > > Hi folks,
> > > >
> > > > I'm trying to use Beehive EJB control in my project.
> > > > I've done two tests.
> > > > In the first one I've created a Session EJB
> > > ("ProvaSessionBean") using
> > > > IBM Application Server Toolkit (AST), with just one
> method (String
> > > > welcomeName (String name)), and imported (the jar file)
> it on BEA
> > > > Workshop 9.2.0 for Weblogic Platform. I've created a new
> > > "Dynamic Web
> > > > Project" using Beehive facets (Controls & NetUI). By the
> > > wizard I've
> > > > created an EJB Control (filling the field "JNDI Name" with
> > > the value
> > > > in META-INF\ibm-ejb-jar-bnd.xmi
> > > ("ejb/ejbs/ProvaSessionBeanHome") and
> > > > from META-INF\ejb-jar.xml for Home/Business Interface
> > > > ("ejbs.ProvaSessionBean" and "ejbs.ProvaSessionBeanHome")).
> > > >
> > > > In Controller class I've instanced the EJB Control by annotation
> > > > (@Control) and call the EJB method in the Controller
> method. I've
> > > > exported the ear file and deployed it on IBM WebSphere
> Application
> > > > Server 6.1 In this case all work correctly.
> > > >
> > > > Then I've tried to use the EJB Control in a normal Java class.
> > > > I've imported the EJB (jar) in my project, and created a
> > > "Dynamic Web
> > > > Project" not using Beehive technology (in particular
> Beehive NetUI).
> > > > I've imported jar to use EJB Control (beehive-controls.jar,
> > > > beehive-ejb-control.jar) and created EJB Control
> > > > (ProvaSessioBeanCtrl.java) following the same step
> described above.
> > > > Then I've created a (simple) Java class (Prova.java) to
> > > instance the
> > > > control (using annotation @Control) and use EJB method, and
> > > a jsp page
> > > > where I called this java class.
> > > > I've exported the ear file and deployed it on IBM WebSphere
> > > > Application Server 6.1.
> > > > When I've tested the application a
> "java.lang.NullPointerException"
> > > > was generated because the EJB Control in java class not was
> > > instanced!
> > > > I've checked that every class by APT was created (Prova.class,
> > > > Prova.controls.properties, ProvaClientInitializer.class,
> > > > ProvaSessioBeanCtrl.class, ProvaSessioBeanCtrlBean.class,
> > > > ProvaSessioBeanCtrlBean.class.manifest,
> > > > ProvaSessioBeanCtrlBeanBeanInfo.class) and all seems correct.
> > > >
> > > > Have anybody some idea because EJB Control doesn't work on
> > > java class?
> > > > Is it possibile use Beehive EJB Control (or Beehive Control in
> > > > general) in a Java class instead in a PageFlow?
> > > >
> > > > Thanks in advance,
> > > > Max
> > > >
> > >
> >
>
Re: EJB Control doesn't work on java class
Posted by Chad Schoettger <ch...@gmail.com>.
Hi Max,
If you really want to do this, the following pattern should work. It
is not very pretty and a bit cumbersome, but the only way I'm aware of
to get a control which relies on lifecycle events to function in a
pojo.
I should also note that for the current version of Beehive controls
this is not a supported use case and only became possible recently
after the ControlTestContainerContext was written.
Any how, here's the pattern:
public class PojoTest {
public void pojoMethod() throws Exception {
org.apache.beehive.controls.test.container.ControlTestContainerContext
ctcc
= new org.apache.beehive.controls.test.container.ControlTestContainerContext();
ctcc.beginContext();
ControlLifecycleBean clb =
Controls.instantiate(ControlLifecycleBean.class, null, ctcc, null);
//
// use the control
//
ctcc.endContext();
}
}
The following should be noted:
1) The control must be instantiated via programmatic instantiation.
2) The beginContext() and endContext() roughly correspond to
onAquire/onRelease lifecycle invocations.
3) beginContext() must be invoked BEFORE the control is instantiated.
Hope this helps,
- Chad
On 8/4/06, Ricci, Massimiliano (HPS C&I, HP-Italy)
<ma...@hp.com> wrote:
> Hi Chris,
>
> _Probably_ the problem is that the EJB Control need a "container context" to run. Is it possible to add a "container context" to a simple a Java class to use an EJB Control?
>
> Thanks in advance,
> Max
>
> > -----Original Message-----
> > From: Chris Hogue [mailto:cshogue@gmail.com]
> > Sent: 27 July 2006 21:20
> > To: Beehive Users
> > Subject: Re: EJB Control doesn't work on java class
> >
> > This actually looks more problematic than it first appears.
> > The EJB control (and others) rely on some of the lifecycle
> > methods like onAcquire and onRelease to get and release their
> > resources.
> >
> > So unfortunately I don't know of a quick answer to that
> > problem outside of a control container, it will take some
> > digging. If others have tips on how to accomplish this or
> > where to look that would be helpful.
> >
> > -Chris
> >
> > On 7/27/06, Ricci, Massimiliano (HPS C&I, HP-Italy)
> > <ma...@hp.com> wrote:
> > > Hi Chris,
> > >
> > > I'm retyped the code using programmatic and declarative
> > mechanism to instance the control.
> > >
> > > Unfortunately calling the two method (welcomeDeclarative,
> > welcomeProgrammatic) I'm getting in both case the same exception:
> > >
> > > org.apache.beehive.controls.api.ControlException: Control
> > > initialization failure[Contextual service
> > > org.apache.beehive.controls.api.context.ResourceContext is not
> > > available]
> > >
> > > Do you have any advice to solve this (two) problems
> > (declarative (if is possible) and programmatic)?
> > >
> > > This is my client class:
> > >
> > > package controls;
> > >
> > > import org.apache.beehive.controls.api.bean.Control;
> > > import org.apache.beehive.controls.api.bean.Controls;
> > > import org.apache.beehive.controls.api.context.ControlThreadContext;
> > >
> > > public class Prova {
> > >
> > > @Control
> > > private ProvaSessioBeanCtrl provaSessioBeanCtrl;
> > >
> > > public Prova() throws ClassNotFoundException {
> > >
> > > try {
> > > Controls.initializeClient(null, this, null);
> > > } catch (ClassNotFoundException e) {
> > >
> > > e.printStackTrace();
> > > }
> > > }
> > >
> > > public String welcomeProgrammatic(String name) {
> > > String ritorno = "bubububu";
> > > try {
> > >
> > > ProvaSessioBeanCtrlBean
> > provaSessioBeanCtrl = (ProvaSessioBeanCtrlBean) Controls
> > >
> > .instantiate(ProvaSessioBeanCtrlBean.class, null,
> > >
> > ControlThreadContext.getContext(),
> > >
> > "provaSessioBeanCtrl");
> > > ritorno =
> > > provaSessioBeanCtrl.welcomeName(name);
> > >
> > > } catch (Exception ex) {
> > > //cnfe.printStackTrace();
> > > ritorno = "Exception by
> > Programmatic: " + ex.toString();
> > > }
> > > return ritorno;
> > > }
> > >
> > > public String welcomeDeclarative(String name) {
> > > String ritorno = "bububub";
> > > try {
> > >
> > > ritorno =
> > provaSessioBeanCtrl.welcomeName(name);
> > > } catch (Exception cnfe) {
> > > //cnfe.printStackTrace();
> > > ritorno = "Exception by
> > Declarative: " + cnfe.toString();
> > > }
> > > return ritorno;
> > > }
> > >
> > > }
> > >
> > > > -----Original Message-----
> > > > From: Chris Hogue [mailto:cshogue@gmail.com]
> > > > Sent: mercoledì 26 luglio 2006 16.23
> > > > To: Beehive Users
> > > > Subject: Re: EJB Control doesn't work on java class
> > > >
> > > > Hi Max,
> > > >
> > > > I'm not sure you can use @Control instantiation in a regular Java
> > > > class. I don't believe there's anything that triggers the
> > > > instantiation. When you run in a page flow or another
> > control those
> > > > have a "control container" that handles this.
> > > >
> > > > Have you tried programmatic instantiation as described here?
> > > >
> > > > http://beehive.apache.org/docs/1.0.1/controls/programming.html
> > > > #Programmatic+Instantiation
> > > >
> > > >
> > > > -Chris
> > > >
> > > >
> > > > On 7/26/06, Ricci, Massimiliano (HPS C&I, HP-Italy)
> > > > <ma...@hp.com> wrote:
> > > > > Hi folks,
> > > > >
> > > > > I'm trying to use Beehive EJB control in my project.
> > > > > I've done two tests.
> > > > > In the first one I've created a Session EJB
> > > > ("ProvaSessionBean") using
> > > > > IBM Application Server Toolkit (AST), with just one
> > method (String
> > > > > welcomeName (String name)), and imported (the jar file)
> > it on BEA
> > > > > Workshop 9.2.0 for Weblogic Platform. I've created a new
> > > > "Dynamic Web
> > > > > Project" using Beehive facets (Controls & NetUI). By the
> > > > wizard I've
> > > > > created an EJB Control (filling the field "JNDI Name" with
> > > > the value
> > > > > in META-INF\ibm-ejb-jar-bnd.xmi
> > > > ("ejb/ejbs/ProvaSessionBeanHome") and
> > > > > from META-INF\ejb-jar.xml for Home/Business Interface
> > > > > ("ejbs.ProvaSessionBean" and "ejbs.ProvaSessionBeanHome")).
> > > > >
> > > > > In Controller class I've instanced the EJB Control by annotation
> > > > > (@Control) and call the EJB method in the Controller
> > method. I've
> > > > > exported the ear file and deployed it on IBM WebSphere
> > Application
> > > > > Server 6.1 In this case all work correctly.
> > > > >
> > > > > Then I've tried to use the EJB Control in a normal Java class.
> > > > > I've imported the EJB (jar) in my project, and created a
> > > > "Dynamic Web
> > > > > Project" not using Beehive technology (in particular
> > Beehive NetUI).
> > > > > I've imported jar to use EJB Control (beehive-controls.jar,
> > > > > beehive-ejb-control.jar) and created EJB Control
> > > > > (ProvaSessioBeanCtrl.java) following the same step
> > described above.
> > > > > Then I've created a (simple) Java class (Prova.java) to
> > > > instance the
> > > > > control (using annotation @Control) and use EJB method, and
> > > > a jsp page
> > > > > where I called this java class.
> > > > > I've exported the ear file and deployed it on IBM WebSphere
> > > > > Application Server 6.1.
> > > > > When I've tested the application a
> > "java.lang.NullPointerException"
> > > > > was generated because the EJB Control in java class not was
> > > > instanced!
> > > > > I've checked that every class by APT was created (Prova.class,
> > > > > Prova.controls.properties, ProvaClientInitializer.class,
> > > > > ProvaSessioBeanCtrl.class, ProvaSessioBeanCtrlBean.class,
> > > > > ProvaSessioBeanCtrlBean.class.manifest,
> > > > > ProvaSessioBeanCtrlBeanBeanInfo.class) and all seems correct.
> > > > >
> > > > > Have anybody some idea because EJB Control doesn't work on
> > > > java class?
> > > > > Is it possibile use Beehive EJB Control (or Beehive Control in
> > > > > general) in a Java class instead in a PageFlow?
> > > > >
> > > > > Thanks in advance,
> > > > > Max
> > > > >
> > > >
> > >
> >
>