[jboss-user] [JBoss Seam] - how to use taskinstance??
juangiovanolli
do-not-reply at jboss.com
Mon Dec 4 13:31:49 EST 2006
i'm trying to persist variables into the current taskInstance. for this i'm injecting the taskInstance object of jboss.seam.core. but it fails as you can see below:
|
| javax.faces.el.EvaluationException: /main.xhtml @13,49 value="#{taskManager.description}": Exception getting value of property description of base of type : com.santex.darwin.web.sample.TaskBean$$EnhancerByCGLIB$$c41132d8
| at com.sun.facelets.el.LegacyValueBinding.getValue(LegacyValueBinding.java:60)
| at javax.faces.component.UIOutput.getValue(UIOutput.java:77)
| at org.apache.myfaces.shared_impl.renderkit.RendererUtils.getStringValue(RendererUtils.java:217)
| at org.apache.myfaces.shared_impl.renderkit.html.HtmlTextRendererBase.renderInput(HtmlTextRendererBase.java:135)
| at org.apache.myfaces.shared_impl.renderkit.html.HtmlTextRendererBase.encodeEnd(HtmlTextRendererBase.java:53)
| at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:536)
| at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:242)
| at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239)
| at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239)
| at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:580)
| at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
| at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:46)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
| at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
| at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
| at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
| at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
| at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
| at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
| at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
| at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
| at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
| at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
| at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
| at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
| at java.lang.Thread.run(Thread.java:595)
| Caused by: javax.faces.el.EvaluationException: Bean: com.santex.darwin.web.sample.TaskBean$$EnhancerByCGLIB$$c41132d8, property: description
| at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:442)
| at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:82)
| at com.sun.facelets.el.LegacyELContext$LegacyELResolver.getValue(LegacyELContext.java:141)
| at com.sun.el.parser.AstValue.getValue(AstValue.java:117)
| at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:192)
| at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
| at com.sun.facelets.el.LegacyValueBinding.getValue(LegacyValueBinding.java:56)
| ... 36 more
| Caused by: java.lang.reflect.InvocationTargetException
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:585)
| at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:438)
| ... 42 more
| Caused by: org.jboss.seam.RequiredException: In attribute requires value for component: taskManager.taskInstance
| at org.jboss.seam.Component.getInstanceToInject(Component.java:1823)
| at org.jboss.seam.Component.injectFields(Component.java:1312)
| at org.jboss.seam.Component.inject(Component.java:1082)
| at org.jboss.seam.interceptors.BijectionInterceptor.bijectTargetComponent(BijectionInterceptor.java:48)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:585)
| at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
| at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
| at org.jboss.seam.interceptors.ConversationInterceptor.endOrBeginLongRunningConversation(ConversationInterceptor.java:55)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:585)
| at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
| at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
| at org.jboss.seam.interceptors.BusinessProcessInterceptor.manageBusinessProcessContext(BusinessProcessInterceptor.java:50)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:585)
| at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
| at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
| at org.jboss.seam.interceptors.ExceptionInterceptor.handleExceptions(ExceptionInterceptor.java:28)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:585)
| at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
| at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
| at org.jboss.seam.intercept.RootInterceptor.createSeamInvocationContext(RootInterceptor.java:144)
| at org.jboss.seam.intercept.RootInterceptor.invokeInContexts(RootInterceptor.java:129)
| at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:102)
| at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:128)
| at org.jboss.seam.intercept.JavaBeanInterceptor.intercept(JavaBeanInterceptor.java:69)
| at com.santex.darwin.web.samp
|
and the class where i'm trying to inject it is this:
TaskBean.java
| package com.santex.darwin.web.sample;
|
| import javax.ejb.Remove;
|
| import org.jboss.seam.ScopeType;
| import org.jboss.seam.annotations.CreateProcess;
| import org.jboss.seam.annotations.Destroy;
| import org.jboss.seam.annotations.EndTask;
| import org.jboss.seam.annotations.In;
| import org.jboss.seam.annotations.Name;
| import org.jboss.seam.annotations.Out;
| import org.jboss.seam.annotations.StartTask;
| import org.jboss.seam.core.TaskInstance;
|
| import com.santex.darwin.service.core.workflow.WorkflowManager;
|
| /**
| *
| * @author Juan Giovanolli
| * 29/11/2006
| */
| @Name("taskManager")
|
| public class TaskBean implements Task
| {
|
| private String description;
|
| @In(create = true)
| WorkflowManager workflowManagerImpl;
|
|
| @In(create=true)
| TaskInstance taskInstance;
|
|
| public WorkflowManager getWorkflowManagerImpl()
| {
| return workflowManagerImpl;
| }
|
| public void setWorkflowManagerImpl(WorkflowManager workflowManagerImpl)
| {
| this.workflowManagerImpl = workflowManagerImpl;
| }
|
| /**
| * @return the description
| */
| public String getDescription()
| {
| return description;
| }
|
| /**
| * @param description the description to set
| */
| public void setDescription(String pDescription)
| {
| this.description = pDescription;
| }
|
| @StartTask
| public String startTask() {
| try {
| taskInstance.getTaskInstance().setVariable("a1", a);
| }
| catch (Exception e) {
| e.printStackTrace();
| }
| return "";
| }
|
| @EndTask
| public String endTask() {
| try {
| taskInstance.getTaskInstance().setVariable("a2", a);
| }
| catch (Exception e) {
| e.printStackTrace();
| }
| return "";
| }
|
| @Remove @Destroy
| public void destroy() {
|
| }
|
| @CreateProcess(definition = "ProcessAbstract")
| public String startProcess()
| {
| return "";
| }
|
| }
|
|
Any ideas?? or still better: any examples?
Thks.!
View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3991068#3991068
Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3991068
More information about the jboss-user
mailing list