Method binding with context variable as a parameter - parser
dkane Jun 20, 2007 10:40 AMHello
In example 1.23 listing of Seam documentation I see the code :
<h:dataTable value="#{hotels}" var="hot" rendered="#{hotels.rowCount>0}"> <h:column> <f:facet name="header">Name</f:facet> #{hot.name} </h:column> <h:column> <f:facet name="header">Address</f:facet> #{hot.address} </h:column> <h:column> <f:facet name="header">City, State</f:facet> #{hot.city}, #{hot.state}, #{hot.country} </h:column> <h:column> <f:facet name="header">Zip</f:facet> #{hot.zip} </h:column> <h:column> <f:facet name="header">Action</f:facet> <s:link value="View Hotel" action="#{hotelBooking.selectHotel(hot)}"/> </h:column> </h:dataTable>
And, the comment :
Also notice that we use a method binding with a parameter: #{hotelBooking.selectHotel(hot)}. This is not possible in the standard Unified EL, but Seam provides an extension to the EL that lets you use parameters on any method binding expression
My code is :
<h:dataTable id="partsTbl" value="#{parts}" var="part" rendered="#{parts.rowCount>0}"> <h:column> ...... </h:column> <h:column> <s:button action="#{cart.addPart(part,1)}" value="Add to Cart"/> </h:column> </h:dataTable>
And, I am getting the exception :
com.sun.facelets.tag.TagAttributeException: /parts.xhtml @66,68 action="#{cart.addPart(part,1)}" Error Parsing: #{cart.addPart(part,1)} at com.sun.facelets.tag.TagAttribute.getMethodExpression(TagAttribute.java:144) at com.sun.facelets.tag.jsf.ActionSourceRule$ActionMapper.applyMetadata(ActionSourceRule.java:50) at com.sun.facelets.tag.MetadataImpl.applyMetadata(MetadataImpl.java:36) at com.sun.facelets.tag.MetaTagHandler.setAttributes(MetaTagHandler.java:62) at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:144) at com.sun.facelets.tag.jsf.ComponentHandler.applyNextHandler(ComponentHandler.java:314) at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:169) at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47) at com.sun.facelets.tag.jsf.ComponentHandler.applyNextHandler(ComponentHandler.java:314) at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:169) at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47) at com.sun.facelets.tag.jsf.ComponentHandler.applyNextHandler(ComponentHandler.java:314) at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:169) at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47) at com.sun.facelets.tag.ui.DefineHandler.applyDefinition(DefineHandler.java:64) at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:128) at com.sun.facelets.impl.DefaultFaceletContext$TemplateManager.apply(DefaultFaceletContext.java:306) at com.sun.facelets.impl.DefaultFaceletContext.includeDefinition(DefaultFaceletContext.java:279) 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:143) 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:503) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:546) at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108) at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:229) 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.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.MultipartFilter.doFilter(MultipartFilter.java:79) 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$FilterChainImpl.doFilter(SeamFilter.java:49) at org.jboss.seam.web.SeamFilter.doFilter(SeamFilter.java:84) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$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:799) Caused by: javax.el.ELException: Error Parsing: #{cart.addPart(part,1)} at com.sun.el.lang.ExpressionBuilder.createNodeInternal(ExpressionBuilder.java:160) at com.sun.el.lang.ExpressionBuilder.build(ExpressionBuilder.java:177) at com.sun.el.lang.ExpressionBuilder.createMethodExpression(ExpressionBuilder.java:228) at com.sun.el.ExpressionFactoryImpl.createMethodExpression(ExpressionFactoryImpl.java:70) at com.sun.facelets.tag.TagAttribute.getMethodExpression(TagAttribute.java:141) ... 67 more Caused by: com.sun.el.parser.ParseException: Encountered "(" at line 1, column 15. Was expecting one of: "}" ... "." ... "[" ... ">" ... "gt" ... "<" ... "lt" ... ">=" ... "ge" ... "<=" ... "le" ... "==" ... "eq" ... "!=" ... "ne" ... "&&" ... "and" ... "||" ... "or" ... "*" ... "+" ... "-" ... "?" ... "/" ... "div" ... "%" ... "mod" ... at com.sun.el.parser.ELParser.generateParseException(ELParser.java:1651) at com.sun.el.parser.ELParser.jj_consume_token(ELParser.java:1531) at com.sun.el.parser.ELParser.DeferredExpression(ELParser.java:134) at com.sun.el.parser.ELParser.CompositeExpression(ELParser.java:61) at com.sun.el.lang.ExpressionBuilder.createNodeInternal(ExpressionBuilder.java:128) ... 71 more
What am I doing wrong ?