Steve Ebersole ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *updated* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiZTBlODZiZGFk... ) / Improvement ( https://hibernate.atlassian.net/browse/HHH-16339?atlOrigin=eyJpIjoiZTBlOD... ) HHH-16339 ( https://hibernate.atlassian.net/browse/HHH-16339?atlOrigin=eyJpIjoiZTBlOD... ) Consolidate DiscriminatorType, DiscriminatorMetadata and EntityDiscriminatorMapping ( https://hibernate.atlassian.net/browse/HHH-16339?atlOrigin=eyJpIjoiZTBlOD... ) Change By: Steve Ebersole ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) At the moment, Hibernate is using a mix of new and legacy descriptors for mapping entity discriminators.  The legacy contracts include: * {{org.hibernate.persister.entity.DiscriminatorMetadata}} * {{org.hibernate.persister.entity.DiscriminatorType}} The corresponding new runtime mapping contract is: * {{org.hibernate.metamodel.mapping.EntityDiscriminatorMapping}} Also consider consolidations with mapping the discriminator portion of any and many-to-any associations. ( https://hibernate.atlassian.net/browse/HHH-16339#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16339#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100218- sha1:fe49d35 )