3:09 p.m.
Seam 1.2.1
Jboss 4.0.5
I have extended EntityQuery:
| @Name("predictionList")
| @Scope(CONVERSATION)
| public class PredictionList extends EntityQuery
| {
| private static final long serialVersionUID = -28849438634100838L;
|
| @In(required=true, create=true)
| private PredictionFilter predictionFilter;
|
| @Override
| public String getEjbql() {
| return "select p from Prediction p";
| }
|
| @Override
| public List<String> getRestrictions()
| {
| System.out.println("getRestrictions() called. PredictionFilter:" +
predictionFilter);
|
| ArrayList<String> restrictions = new ArrayList<String>(0);
|
| if (predictionFilter.getFilterChoice().equals(PredictionFilter.FilterChoice.ALL))
| {
| return restrictions;
| }
|
| if
(predictionFilter.getFilterChoice().equals(PredictionFilter.FilterChoice.FEATURED))
| {
| restrictions.add("p.featured=true");
| return restrictions;
| }
|
| if
(predictionFilter.getFilterChoice().equals(PredictionFilter.FilterChoice.EDITORSPICKS))
| {
| restrictions.add("p.editorspick=true");
| return restrictions;
| }
|
| return restrictions;
|
| }
|
| ...
|
|
When I use predictionList in my view:
| <h:outputText class="nopredictions" value="No predictions to
display" rendered="#{empty predictionList.resultList}"/>
| <h:dataTable styleclass="predictions"
value="#{predictionList.resultList}" var="pre" rendered="#{not
empty predictionList.resultList}">
| ...
|
I get the following exception:
| javax.faces.el.EvaluationException: /layout/predictions.xhtml @8,118
rendered="#{empty predictionList.resultList}":
com.mystuff.fresh.domain.PredictionList_$$_javassist_304
| at
com.sun.facelets.el.LegacyValueBinding.getValue(LegacyValueBinding.java:60)
| at javax.faces.component.UIComponentBase.isRendered(UIComponentBase.java:822)
| at
com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:241)
| at
com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:249)
| at
com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:249)
| at
com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:573)
| at
org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:101)
| at
org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:221)
| at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:352)
| at javax.faces.webapp.FacesServlet.service(FacesServlet.java:107)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:63)
| at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:60)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:79)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.SeamFilter.doFilter(SeamFilter.java:84)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at
org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:75)
| at
org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:213)
| 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.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
| 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.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.mystuff.fresh.domain.PredictionList_$$_javassist_304, property: resultList
| at
org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:404)
| at
org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:71)
| at
com.sun.facelets.el.LegacyELContext$LegacyELResolver.getValue(LegacyELContext.java:141)
| at com.sun.el.parser.AstValue.getValue(AstValue.java:125)
| at com.sun.el.parser.AstEmpty.getValue(AstEmpty.java:49)
| at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:195)
| at
com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
| at
com.sun.facelets.el.LegacyValueBinding.getValue(LegacyValueBinding.java:56)
| ... 44 more
| Caused by: java.lang.reflect.InvocationTargetException
| at sun.reflect.GeneratedMethodAccessor7810.invoke(Unknown Source)
| 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:400)
| ... 51 more
| Caused by: java.lang.IllegalArgumentException: there should be exactly one value
binding in a restriction: p.featured=true
| at org.jboss.seam.framework.Query.parseEjbql(Query.java:145)
| at org.jboss.seam.framework.EntityQuery.createQuery(EntityQuery.java:100)
| at org.jboss.seam.framework.EntityQuery.getResultList(EntityQuery.java:41)
| at sun.reflect.GeneratedMethodAccessor7811.invoke(Unknown Source)
| 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:20)
| at
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:57)
| at
org.jboss.seam.interceptors.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:47)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
| at
org.jboss.seam.interceptors.ManagedEntityIdentityInterceptor.aroundInvoke(ManagedEntityIdentityInterceptor.java:37)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
| at
org.jboss.seam.interceptors.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:34)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
| at
org.jboss.seam.interceptors.TransactionInterceptor$1.work(TransactionInterceptor.java:32)
| at org.jboss.seam.util.Work.workInTransaction(Work.java:37)
| at
org.jboss.seam.interceptors.TransactionInterceptor.aroundInvoke(TransactionInterceptor.java:27)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
| at
org.jboss.seam.interceptors.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:27)
| at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
| at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:103)
| at
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:151)
| at
org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:87)
| at
com.mystuff.fresh.domain.PredictionList_$$_javassist_304.getResultList(PredictionList_$$_javassist_304.java)
| ... 55 more
|
Are restrictions the right way to set the where clause on a query?
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