Access Limitations of Bean

I added a Print class that implements Printable in the declaration section of a JSP. The print() method is part of the class and works fine, but the declaration section will not recognize the bean that contains the data to print(the rest of the page does).
I need to instanciate an object the print class inorder to print. Should I move the Print class out of the JSP? If so, how would I access the bean in the print() method. Any suggestions on best practices?

Is bean access not allowed from a class/method declared in the declaration section?

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    Ramya wrote:
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    Ramya wrote:
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    java.rmi.RemoteException: EJB Exception: ; nested exception is:
    java.lang.NullPointerException
    java.lang.NullPointerException
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      </enterprise-beans>
    </sun-ejb-jar>
    Course.java
    package RS;
    import java.rmi.RemoteException;
    public interface Course extends javax.ejb.EJBObject {
      public String getName() throws RemoteException;
      public void setName (String Str) throws RemoteException;
      public int getNumber() throws RemoteException;
      public void setNumber (int n) throws RemoteException;
    CourseHome.java
    package RS;
    import java.rmi.RemoteException;
    import javax.ejb.CreateException;
    import javax.ejb.FinderException;
    public interface CourseHome extends javax.ejb.EJBHome {
    public Course create(int id) throws
    CreateException,RemoteException;
    public Course findByPrimaryKey(CoursePK pk)
    throws FinderException,RemoteException;
    CourseBean.java
    package RS;
    import javax.ejb.EntityContext;
    public abstract class CourseBean implements javax.ejb.EntityBean {
    public CoursePK ejbCreate (int number) throws javax.ejb.CreateException{
      this.setNumber(number);
      return null;
    public void ejbPostCreate (int number) {
    public abstract String getName();
    public abstract void setName (String str);
    public abstract int getNumber ();
    public abstract void setNumber (int number);
    public void setEntityContext (EntityContext ctx) {}
    public void unsetEntityContext() {}
    public void ejbActivate () {}
    public void ejbPassivate () {}
    public void ejbLoad () {}
    public void ejbStore () {}
    public void ejbRemove() {}
    }Laurence L. Leff, Ph.D. Associate Professor of Computer Science
    Western Illinois University, 1 University Circle 61455, Pager: 309 367 0787
    FAX 309 298 2302

    hi s-mcgowan,
    "some other processing" comprises of printing of debug lines and publishing to the message queue using JMS. I added more debug lines so that i could see whats really happening... here is the result
    myTableHome.create(...); <----------- no exception was thrown and it returned LocalMyTable object
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    print out "publishing message"
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    print out "Publish done"
    ... after few milliseconds...
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    From the exception it seems like its doing a batch insert. So that seems to explain why the java.sql.BatchUpdateException is thrown few milliseconds after my call to myTableHome.create(...);
    Is it possible to disable batch update / insert? how?
    thanks in advance,
    leigh

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    import javax.ejb.*;
    import javax.rmi.*;
    import java.rmi.*;
    import javax.naming.*;
    import java.util.*;
    import java.io.*;
    import javax.servlet.*;
    import javax.servlet.http.*;
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    greetHome home = (greetHome)
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    Kostas

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    mypackage.OuterBean at org.apache.jasper.el.JspValueExpression.getValue(JspValueExpression.java:107) at javax.faces.component.UIOutput.getValue(UIOutput.java:184) at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:201) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:284) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:154) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:861) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:946) at javax.faces.render.Renderer.encodeChildren(Renderer.java:148) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:936) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:942) at com.sun.faces.application.ViewHandlerImpl.doRenderView(ViewHandlerImpl.java:271) at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:202) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:109) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266) atThanks.

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    javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837) at
    javax.faces.component.UIComponent.encodeAll(UIComponent.java:936) at
    javax.faces.component.UIComponent.encodeAll(UIComponent.java:942) at
    com.sun.faces.application.ViewHandlerImpl.doRenderView(ViewHandlerImpl.java:271) at
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    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100) at
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    Edited by: sn72 on Sep 21, 2008 10:21 AM
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  • Exception while accessing deployed entity bean (CMP)

    Hi
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    java.lang.NullPointerException
    at
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    operty(Unk
    n Source)
    at com.netscape.server.ejb.SQLPersistenceManager.init(Unknown
    Source)
    at
    com.netscape.server.ejb.SQLPersistenceManagerFactory.addHome(Unknown Source)
    at com.kivasoft.eb.EBHomeBase.initMeta(Unknown Source)
    at com.kivasoft.eb.EBHomeBase.initTransport(Unknown Source)
    at com.kivasoft.eb.EBActivatorCB.getEBHomenative(Native Method)
    at com.kivasoft.eb.EBActivatorCB.getEBHome(Unknown Source)
    at com.netscape.server.ejb.EjbContext.createHomeRef(Unknown Source)
    at com.netscape.server.ejb.EjbContext.getHomeRef(Unknown Source)
    at com.netscape.server.ejb.EjbContext.lookup(Unknown Source)
    at com.netscape.server.jndi.RootContext.lookup(Unknown Source)
    at com.netscape.server.jndi.RootContext.lookup(Unknown Source)
    at javax.naming.InitialContext.lookup(InitialContext.java:357)
    at samples.test.ejb.TestEJB.getGreeting(TestEJB.java:45)
    at java.lang.reflect.Method.invoke(Native Method)
    at
    samples.test.ejb.ejb_skel_samples_test_ejb_TestEJB.getGreeting(ejb_skel_samp
    les_test_e
    TestEJB.java:80)
    at
    samples.test.ejb.ejb_kcp_skel_Test.getGreeting__indir_wstring__indir_wstring
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    at com.kivasoft.ebfp.FPRequest.invokenative(Native Method)
    at com.kivasoft.ebfp.FPRequest.invoke(Unknown Source)
    at
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    at samples.test.ejb.ejb_stub_Test.getGreeting(ejb_stub_Test.java:71)
    at samples.test.servlet.TestServlet.doGet(TestServlet.java:62)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
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    Source)
    at
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    Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.thread.ThreadBasic.run(Native Method)
    at java.lang.Thread.run(Thread.java:479)
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    Source)
    at
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    at com.kivasoft.eb.EBHomeBase.initMeta(Unknown Source)
    at com.kivasoft.eb.EBHomeBase.initTransport(Unknown Source)
    at com.kivasoft.eb.EBActivatorCB.getEBHomenative(Native Method)
    at com.kivasoft.eb.EBActivatorCB.getEBHome(Unknown Source)
    at com.netscape.server.ejb.EjbContext.createHomeRef(Unknown Source)
    at com.netscape.server.ejb.EjbContext.getHomeRef(Unknown Source)
    at com.netscape.server.ejb.EjbContext.lookup(Unknown Source)
    at com.netscape.server.jndi.RootContext.lookup(Unknown Source)
    at com.netscape.server.jndi.RootContext.lookup(Unknown Source)
    at javax.naming.InitialContext.lookup(InitialContext.java:357)
    at samples.test.ejb.TestEJB.getGreeting(TestEJB.java:45)
    at java.lang.reflect.Method.invoke(Native Method)
    at
    samples.test.ejb.ejb_skel_samples_test_ejb_TestEJB.getGreeting(ejb_skel_samp
    les_test_e
    TestEJB.java:80)
    at
    samples.test.ejb.ejb_kcp_skel_Test.getGreeting__indir_wstring__indir_wstring
    (ejb_kcp_s
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    at com.kivasoft.ebfp.FPRequest.invokenative(Native Method)
    at com.kivasoft.ebfp.FPRequest.invoke(Unknown Source)
    at
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    at samples.test.ejb.ejb_stub_Test.getGreeting(ejb_stub_Test.java:71)
    at samples.test.servlet.TestServlet.doGet(TestServlet.java:62)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
    at
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    Source)
    at
    com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unknown
    Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.thread.ThreadBasic.run(Native Method)
    at java.lang.Thread.run(Thread.java:479)
    got the Entity bean found ***************
    got the Entity bean***************
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    java.lang.NullPointerException
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    at com.netscape.server.ejb.SQLPersistenceManager.<init>(Unknown
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    at
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    Source)
    at
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    own Source
    at
    com.netscape.server.ejb.EntityDelegateManagerImpl.doPersistentFind(Unknown
    Source)
    at com.netscape.server.ejb.EntityDelegateManagerImpl.find(Unknown
    Source)
    at com.kivasoft.eb.EBHomeBase.findSingleByParms(Unknown Source)
    at
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    ejb_home_samples_test_ejb_Entity_TestEntityBean.java:126)
    at
    samples.test.ejb.Entity.ejb_kcp_skel_TestEntityHome.findByPrimaryKey__sample
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    at com.kivasoft.ebfp.FPRequest.invokenative(Native Method)
    at com.kivasoft.ebfp.FPRequest.invoke(Unknown Source)
    at
    samples.test.ejb.Entity.ejb_kcp_stub_TestEntityHome.findByPrimaryKey(ejb_kcp
    stubTest
    ityHome.java:338)
    at
    samples.test.ejb.Entity.ejb_stub_TestEntityHome.findByPrimaryKey(ejb_stub_Te
    stEntityHo
    java:85)
    at samples.test.ejb.TestEJB.getGreeting(TestEJB.java:51)
    at java.lang.reflect.Method.invoke(Native Method)
    at
    samples.test.ejb.ejb_skel_samples_test_ejb_TestEJB.getGreeting(ejb_skel_samp
    les_test_e
    TestEJB.java:80)
    at
    samples.test.ejb.ejb_kcp_skel_Test.getGreeting__indir_wstring__indir_wstring
    (ejb_kcp_s
    _Test.java:220)
    at com.kivasoft.ebfp.FPRequest.invokenative(Native Method)
    at com.kivasoft.ebfp.FPRequest.invoke(Unknown Source)
    at
    samples.test.ejb.ejb_kcp_stub_Test.getGreeting(ejb_kcp_stub_Test.java:327)
    at samples.test.ejb.ejb_stub_Test.getGreeting(ejb_stub_Test.java:71)
    at samples.test.servlet.TestServlet.doGet(TestServlet.java:62)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
    at
    com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
    Source)
    at
    com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unknown
    Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.thread.ThreadBasic.run(Native Method)
    at java.lang.Thread.run(Thread.java:479)
    I could not find the Entity bean
    java.rmi.RemoteException: internal error; nested exception is:
    java.lang.NullPointerException
    java.lang.NullPointerException
    at java.util.Hashtable.get(Hashtable.java:321)
    at com.netscape.server.ejb.SQLPersistenceManager.<init>(Unknown
    Source)
    at
    com.netscape.server.ejb.SQLPersistenceManagerFactory.newInstance(Unknown
    Source)
    at
    com.netscape.server.ejb.EntityDelegateManagerImpl.getPersistenceManager(Unkn
    own Source
    at
    com.netscape.server.ejb.EntityDelegateManagerImpl.doPersistentFind(Unknown
    Source)
    at com.netscape.server.ejb.EntityDelegateManagerImpl.find(Unknown
    Source)
    at com.kivasoft.eb.EBHomeBase.findSingleByParms(Unknown Source)
    at
    samples.test.ejb.Entity.ejb_home_samples_test_ejb_Entity_TestEntityBean.find
    ByPrimaryK
    ejb_home_samples_test_ejb_Entity_TestEntityBean.java:126)
    at
    samples.test.ejb.Entity.ejb_kcp_skel_TestEntityHome.findByPrimaryKey__sample
    s_test_ejb
    tity_TestEntity__int(ejb_kcp_skel_TestEntityHome.java:266)
    at com.kivasoft.ebfp.FPRequest.invokenative(Native Method)
    at com.kivasoft.ebfp.FPRequest.invoke(Unknown Source)
    at
    samples.test.ejb.Entity.ejb_kcp_stub_TestEntityHome.findByPrimaryKey(ejb_kcp
    stubTest
    ityHome.java:338)
    at
    samples.test.ejb.Entity.ejb_stub_TestEntityHome.findByPrimaryKey(ejb_stub_Te
    stEntityHo
    java:85)
    at samples.test.ejb.TestEJB.getGreeting(TestEJB.java:51)
    at java.lang.reflect.Method.invoke(Native Method)
    at
    samples.test.ejb.ejb_skel_samples_test_ejb_TestEJB.getGreeting(ejb_skel_samp
    les_test_e
    TestEJB.java:80)
    at
    samples.test.ejb.ejb_kcp_skel_Test.getGreeting__indir_wstring__indir_wstring
    (ejb_kcp_s
    _Test.java:220)
    at com.kivasoft.ebfp.FPRequest.invokenative(Native Method)
    at com.kivasoft.ebfp.FPRequest.invoke(Unknown Source)
    at
    samples.test.ejb.ejb_kcp_stub_Test.getGreeting(ejb_kcp_stub_Test.java:327)
    at samples.test.ejb.ejb_stub_Test.getGreeting(ejb_stub_Test.java:71)
    at samples.test.servlet.TestServlet.doGet(TestServlet.java:62)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
    at
    com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
    Source)
    at
    com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unknown
    Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
    at com.kivasoft.thread.ThreadBasic.run(Native Method)
    at java.lang.Thread.run(Thread.java:479)
    Regards
    Sandhya Seetharam

    Hi,
    This seems to be the Hello world EJB application with a small
    modification(probably an addition of test directory or a java file). I would
    recomend you to go through every line of the document on deploying this
    application. There is another posting regarding the same issue in this forum.
    Regards
    Raj
    akhila wrote:
    Hi
    PSB for the exception i get when i try to access a delpoyed entity bean
    (CMP).
    If any of you have got this exception and fixed it or have any idea of how
    to fix it then please reply asap.
    thanks.
    java.lang.NullPointerException
    at
    com.netscape.server.deployment.PersistenceDeploymentDescriptorImpl.getBeanPr
    operty(Unk
    n Source)
    at com.netscape.server.ejb.SQLPersistenceManager.init(Unknown
    Source)
    at
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