3 Replies Latest reply on Aug 18, 2008 3:48 AM by daniel.soneira

What datatype for binding to a4j:repeat?

gwzoller Aug 10, 2008 10:02 PM

Hello,

What kind of object should I bind as a backing bean to a4j:repeat? Here's my xhtml:

<a4j:repeat id="rep" value="#{mgr.emails}" var="email"
 binding="#{mgr.repeater}">

Here's the Java:

import org.ajax4jsf.component.html.HtmlAjaxRepeat;
...

 private HtmlAjaxRepeat repeater;

 public HtmlAjaxRepeat getRepeater() {
 return repeater;
 }

 public void setRepeater(HtmlAjaxRepeat repeater) {
 this.repeater = repeater;
 }

I've tried various other types for repeater: org.ajax4jsf.component.UIRepeat, org.ajax4jsf.taglib.html.jsp.AjaxRepeat
, etc. Each one will give me an exception complaining abour argument mismatch--but neglects to tell me what it expected!

SEVERE: Error Rendering View[/sample.xhtml]
javax.faces.FacesException: javax.el.ELException: /sample.xhtml @24,7 binding="#{mgr.repeater}": java.lang.IllegalArgumentException: argument type mismatch
 at com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:240)
 at org.jboss.seam.jsf.SeamApplication.createComponent(SeamApplication.java:327)
 at com.sun.facelets.tag.jsf.ComponentHandler.createComponent(ComponentHandler.java:224)
 at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:139)
 at com.sun.facelets.tag.jsf.ComponentHandler.applyNextHandler(ComponentHandler.java:314)
 at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:169)
 at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
 at com.sun.facelets.tag.jsf.ComponentHandler.applyNextHandler(ComponentHandler.java:314)
 at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:169)
 at com.sun.facelets.tag.jsf.ComponentHandler.applyNextHandler(ComponentHandler.java:314)
 at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:169)
 at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
 at com.sun.facelets.tag.ui.DefineHandler.applyDefinition(DefineHandler.java:64)
 at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:131)
 at com.sun.facelets.impl.DefaultFaceletContext$TemplateManager.apply(DefaultFaceletContext.java:337)
 at com.sun.facelets.impl.DefaultFaceletContext.includeDefinition(DefaultFaceletContext.java:307)
 at com.sun.facelets.tag.ui.InsertHandler.apply(InsertHandler.java:68)
 at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
 at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:49)
 at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
 at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:25)
 at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:248)
 at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:294)
 at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:273)
 at com.sun.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:140)
 at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:113)
 at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:49)
 at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:25)
 at com.sun.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:95)
 at com.sun.facelets.FaceletViewHandler.buildView(FaceletViewHandler.java:524)
 at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:567)
 at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
 at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:189)
 at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
 at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
 at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
 at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:154)
 at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:260)
 at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:366)
 at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:493)
 at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
 at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
 at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
 at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
 at java.lang.Thread.run(Unknown Source)
Caused by: javax.el.ELException: /sample.xhtml @24,7 binding="#{mgr.repeater}": java.lang.IllegalArgumentException: argument type mismatch
 at com.sun.facelets.el.TagValueExpression.setValue(TagValueExpression.java:101)
 at com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:237)
 ... 75 more
Caused by: java.lang.IllegalArgumentException: argument type mismatch
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at javax.el.BeanELResolver.setValue(BeanELResolver.java:108)
 at javax.el.CompositeELResolver.setValue(CompositeELResolver.java:68)
 at com.sun.faces.el.FacesCompositeELResolver.setValue(FacesCompositeELResolver.java:93)
 at org.jboss.el.parser.AstPropertySuffix.setValue(AstPropertySuffix.java:73)
 at org.jboss.el.parser.AstValue.setValue(AstValue.java:84)
 at org.jboss.el.ValueExpressionImpl.setValue(ValueExpressionImpl.java:249)
 at com.sun.facelets.el.TagValueExpression.setValue(TagValueExpression.java:93)
 ... 76 more

Thanks in advance,
Greg

1. Re: What datatype for binding to a4j:repeat?

ilya_shaikovsky Aug 11, 2008 4:35 AM (in response to gwzoller)

http://livedemo.exadel.com/richfaces-demo/richfaces/repeat.jsf
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2. Re: What datatype for binding to a4j:repeat?

gwzoller Aug 11, 2008 9:57 AM (in response to gwzoller)

I've seen this demo...actually its where I got the original approach from.

But using UIRepeat as the demo did gave me the exact same exception, so I started trying any other data type that might make sense, but so far I haven't found the right one.

Any ideas?
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3. Re: What datatype for binding to a4j:repeat?

daniel.soneira Aug 18, 2008 3:48 AM (in response to gwzoller)

Have you tried javax.faces.component.UIData?
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