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http://jira.jboss.com/jira/browse/JBSEAM-2794?page=comments#action_12413443 ]
Ryan Gustafson commented on JBSEAM-2794:
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Compositing with the Seam ELResolver would be useful for making extensions to the property
namespace. In particular, I'd like to add Annotations to my data model POJOs hosted
on a Seam component which can be accessed via EL.
For example, I'd like automatic JSF label text using something like:
<h:outputLabel><h:outputText
value="#{seamComponent.myPojo.aProperty.labelAnnotation}"/></h:outputLabel>
I need to be able to add my resolver into a SeamCompositeELResolver to make
'labelAnnotation' work.
Make Seam EL more extensible and unified
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Key: JBSEAM-2794
URL:
http://jira.jboss.com/jira/browse/JBSEAM-2794
Project: Seam
Issue Type: Feature Request
Components: Core
Affects Versions: 2.1.0.A1
Reporter: Michael Youngstrom
Assigned To: Michael Youngstrom
Fix For: 2.1.0.BETA1
Attachments: el.patch
I'm currently having some trouble dealing with ELResolvers in Seam and JSF.
1. It is not very easy to add ELResolvers to Seam (e.g. SpringELResolver must be put in
the end of the resolver chain when it should be one of the first.)
2. When executing outside a FacesRequest you have to use the Seam ELResolver
infrastructure which doesn't see any of the JSF ELResolvers
3. It would be nice to have a little more control over the order of ELResolvers since I
have run into a few recursive situations as EL can sometimes sneak it's way into
situations where EL is used in the SeamELResolver to resolve EL.
I believe that all of the above can be solved by:
1. Turn the SeamELResolver into a CompositeELResolver where a Seam Component can manage
the included ELResolvers.
2. Add the above single SeamCompositeELResolver to the faces-context.xml. Making it so
custom ELResolvers can be managed in a single place in Seam for both Faces and non Faces
requests.
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