org.hibernate.search.cfg.spi

Interface IdUniquenessResolver

All Superinterfaces:

Service

public interface IdUniquenessResolver
extends Service

Contract checking that two given classes cannot share the same identifier and be two different instances in the underlying datastore (or event provider). In the case of Hibernate ORM, the two classes would enforce id uniqueness when they share the same mapped class hierarchy as ORM enforces one id definition per class hierarchy amongst mapped classes. This Service can be provided by the SearchConfiguration implementor when it has such knowledge. If no IdUniquenessResolver is enlisted as provided service, then it is assumed that uniqueness cannot be guaranteed. This contract is used by Hibernate Search to decide whether it can optimize delete operations on a given index or not.

Author:

Emmanuel Bernard <emmanuel@hibernate.org>

Method Summary

Modifier and Type	Method and Description
boolean	areIdsUniqueForClasses(IndexedTypeIdentifier firstEntity, IndexedTypeIdentifier secondEntity) Returns true if the same identifier value cannot be shared between two class instances of entityInIndex and otherEntityInIndex.

Method Detail

areIdsUniqueForClasses

boolean areIdsUniqueForClasses(IndexedTypeIdentifier firstEntity,
                               IndexedTypeIdentifier secondEntity)

Returns true if the same identifier value cannot be shared between two class instances of entityInIndex and otherEntityInIndex.

Parameters:

firstEntity - one entity type

secondEntity - the other entity type

Returns:

true if the same identifier value cannot be share between two class instances of entityInIndex and otherEntityInIndex