[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-3262) Allow entity class component to be assigned stateless scope

[Dan Allen (JIRA)]

Allow entity class component to be assigned stateless scope
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                 Key: JBSEAM-3262
                 URL: https://jira.jboss.org/jira/browse/JBSEAM-3262
             Project: Seam
          Issue Type: Bug
          Components: Core
    Affects Versions: 2.1.0.A1, 2.0.3.CR1
            Reporter: Dan Allen
            Assignee: Dan Allen
            Priority: Minor
             Fix For: 2.0.3.GA, 2.1.0.GA


There is no reason for not allowing an entity class component to be assigned to the stateless context like JavaBean and stateless session bean components. In fact, you could argue that there is no difference between a JavaBean and an entity class based on the fact that they are both vanilla Java classes.

There is a perfect use case for this feature that comes right from the heart of Seam. When using the Home component, it is perfectly natural to create a component role for an entity class that is wired to the newInstance property to be used as a prototype. For instance, here is an example:

<component name="roundPrototype" class="org.open18.model.Round" scope="stateless">
    <property name="golfer">#{currentGolfer}</property>
    <property name="date">#{currentDate}</property>
</component>

<framework:entity-home name="roundHome" class="org.open18.action.RoundHome" new-instance="#{roundPrototype}"/>

You don't want the roundPrototype to be stored in a scope since it is only used internally to produce the instance managed by the roundHome component. However, with this configuration, Seam throws an exception at startup.

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