[jbossseam-issues] [JBoss JIRA] Resolved: (JBSEAM-2133) inline EL in component property value not properly detected

Dan Allen (JIRA) jira-events at lists.jboss.org
Tue Sep 23 11:57:21 EDT 2008


     [ https://jira.jboss.org/jira/browse/JBSEAM-2133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Allen resolved JBSEAM-2133.
-------------------------------

    Resolution: Done


> inline EL in component property value not properly detected
> -----------------------------------------------------------
>
>                 Key: JBSEAM-2133
>                 URL: https://jira.jboss.org/jira/browse/JBSEAM-2133
>             Project: Seam
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0.0.CR2
>            Reporter: Dan Allen
>            Assignee: Dan Allen
>             Fix For: 2.1.0.CR1
>
>         Attachments: JBSEAM-2133-v1.txt
>
>
> Currently, the EL notation in a property is only being evaluated if the property starts with "#{". There are two problems with this assumption.
> 1. Inline EL can only be used if the property starts with an expression (i.e. <property name="message">#{applicationName} is a cool application</property>)
> 2. There is no way to escape EL so that is is evaluated by the property accepting the string (rather than when the value is assigned).
> The correct behavior would be to treat the property value as a value expression if it CONTAINS "#{". The benefits are two fold:
> 1. A property value can use inline EL that is evaluated when the property value is set (see above)
> 2. The resolved value of the property can be EL (delayed EL) that is to be interpreted by the component as needed. This is done by escaping the EL per the unified EL spec (i.e. <property name="created-message">The user \#{user.name} has been created!</property)
> Surprisingly, everything is already in place. All that needs to happen is the check for EL needs to change from "startsWith" to "contains".

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