org.hibernate.search.indexes.interceptor

Interface EntityIndexingInterceptor<T>

All Known Implementing Classes:

DontInterceptEntityInterceptor

public interface EntityIndexingInterceptor<T>

This interceptor is called upon indexing operations to optionally change the indexing behavior.

The interceptor is applied to a MassIndexer operation, but is ignored when using the explicit indexing control API such org.hibernate.search.FullTextSession.index(T) or purge and purgeAll.

Implementations must be thread-safe and should have a no-arg constructor.

Typical use cases include the so called soft delete.

Author:

Emmanuel Bernard

Experimental

IndexingOverride might be updated

Method Summary

Modifier and Type	Method and Description
IndexingOverride	onAdd(T entity) Triggered when an entity instance T should be added to the index, either by an event listener or by the MassIndexer.
IndexingOverride	onCollectionUpdate(T entity) A CollectionUpdate event is fired on collections included in an indexed entity, for example when using IndexedEmbedded This event is triggered on each indexed domain instance T contained in such a collection; this is generally similar to a onUpdate(Object) event.
IndexingOverride	onDelete(T entity) Triggered when an entity instance T should be deleted from the index.
IndexingOverride	onUpdate(T entity) Triggered when an entity instance T should be updated in the index.

Method Detail

onAdd

IndexingOverride onAdd(T entity)

Triggered when an entity instance T should be added to the index, either by an event listener or by the MassIndexer. This is not triggered by an explicit API call such as FullTextSession.index(T).

Parameters:

entity - The entity instance

Returns:

Return IndexingOverride.APPLY_DEFAULT to have the instance be added to the index as normal; return a different value to override the behaviour.

onUpdate

IndexingOverride onUpdate(T entity)

Triggered when an entity instance T should be updated in the index.

Parameters:

entity - The entity instance

Returns:

Return IndexingOverride.APPLY_DEFAULT to have the instance removed and re-added to the index as normal; return a different value to override the behaviour.

onDelete

IndexingOverride onDelete(T entity)

Triggered when an entity instance T should be deleted from the index.

Parameters:

entity - The entity instance

Returns:

Return IndexingOverride.APPLY_DEFAULT to have the instance removed from the index as normal; return a different value to override the behaviour.

onCollectionUpdate

IndexingOverride onCollectionUpdate(T entity)

A CollectionUpdate event is fired on collections included in an indexed entity, for example when using IndexedEmbedded This event is triggered on each indexed domain instance T contained in such a collection; this is generally similar to a onUpdate(Object) event.

Parameters:

entity - The entity instance

Returns:

Return IndexingOverride.APPLY_DEFAULT to have the instance removed and re-added to the index as normal; return a different value to override the behaviour.