JSR 316: JavaEE Platform Specification
Section 5.4: Simple Environment Entries
—

// an entry that gets its value from an application-wide entry
@Resource(lookup="java:app/env/timeout") int timeout;

<env-entry>
<env-entry-name>somePackage.SomeClass/timeout</env-entry-name>
<env-entry-type>java.lang.Integer</env-entry-type>
<injection-target>
<injection-target-class>somePackage.SomeClass</injection-
target-class>
<injection-target-name>timeout</injection-target-name>
</injection-target>
<lookup-name>java:app/env/timeout</lookup-name>
</env-entry>