The following description would lead customers to confuse and is not clear which function is mentioned.
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JCA and Datasources
You can execute JDBC statements when a JDBC connection is obtained from a pool and returned to the pool.
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https://access.redhat.com/documentation/en/red-hat-jboss-enterprise-application-platform/version-7.0/700-release-notes/#release_notes_new_features

I think at least the added parameters which is documented are introduced there.
These 2 parameters are listed in the product document.
connection-listener-class
connection-listener-property

https://access.redhat.com/documentation/en/red-hat-jboss-enterprise-application-platform/7.0/single/configuration-guide/#datasource_parameters