org.hibernate.search.store.impl

Class IdHashShardingStrategy

java.lang.Object

org.hibernate.search.store.impl.IdHashShardingStrategy

All Implemented Interfaces:

IndexShardingStrategy

public class IdHashShardingStrategy
extends Object
implements IndexShardingStrategy

This implementation use idInString as the hashKey.

Author:

Emmanuel Bernard

Constructor Summary

Constructors

Constructor and Description
IdHashShardingStrategy()

Method Summary

Modifier and Type	Method and Description
IndexManager	getIndexManagerForAddition(Class<?> entity, Serializable id, String idInString, org.apache.lucene.document.Document document)
IndexManager[]	getIndexManagersForAllShards() Ask for all shards (eg to query or optimize)
IndexManager[]	getIndexManagersForDeletion(Class<?> entity, Serializable id, String idInString) return the IndexManager(s) where the given entity is stored and where the deletion operation needs to be applied id and idInString could be null.
IndexManager[]	getIndexManagersForQuery(FullTextFilterImplementor[] fullTextFilters) return the set of IndexManager(s) where the entities matching the filters are stored this optional optimization allows queries to hit a subset of all shards, which may be useful for some datasets if this optimization is not needed, return getIndexManagersForAllShards()
void	initialize(Properties properties, IndexManager[] indexManagers) provides access to sharding properties (under the suffix sharding_strategy) and provide access to all the IndexManager for a given index

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IdHashShardingStrategy

public IdHashShardingStrategy()

Method Detail

initialize

public void initialize(Properties properties,
                       IndexManager[] indexManagers)

Description copied from interface: IndexShardingStrategy

provides access to sharding properties (under the suffix sharding_strategy) and provide access to all the IndexManager for a given index

Specified by:

initialize in interface IndexShardingStrategy

Parameters:

properties - configuration properties

indexManagers - array of IndexManager

getIndexManagersForAllShards

public IndexManager[] getIndexManagersForAllShards()

Description copied from interface: IndexShardingStrategy

Ask for all shards (eg to query or optimize)

Specified by:

getIndexManagersForAllShards in interface IndexShardingStrategy

Returns:

all the IndexManager for all shards

getIndexManagerForAddition

public IndexManager getIndexManagerForAddition(Class<?> entity,
                                               Serializable id,
                                               String idInString,
                                               org.apache.lucene.document.Document document)

Specified by:

getIndexManagerForAddition in interface IndexShardingStrategy

Parameters:

entity - the type of the entity

id - the id in object form

idInString - the id as transformed by the used TwoWayStringBridge

document - the document to index

Returns:

the IndexManager where the given entity will be indexed

getIndexManagersForDeletion

public IndexManager[] getIndexManagersForDeletion(Class<?> entity,
                                                  Serializable id,
                                                  String idInString)

Description copied from interface: IndexShardingStrategy

return the IndexManager(s) where the given entity is stored and where the deletion operation needs to be applied id and idInString could be null. If null, all the IndexManagers containing entity types should be returned

Specified by:

getIndexManagersForDeletion in interface IndexShardingStrategy

Parameters:

entity - the type of the deleted entity

id - the id in object form

idInString - the id as transformed by the used TwoWayStringBridge

Returns:

the IndexManager(s) where the given entity is stored

getIndexManagersForQuery

public IndexManager[] getIndexManagersForQuery(FullTextFilterImplementor[] fullTextFilters)

Description copied from interface: IndexShardingStrategy

return the set of IndexManager(s) where the entities matching the filters are stored this optional optimization allows queries to hit a subset of all shards, which may be useful for some datasets if this optimization is not needed, return getIndexManagersForAllShards()

Specified by:

getIndexManagersForQuery in interface IndexShardingStrategy

Parameters:

fullTextFilters - can be empty if no filter is applied

Returns:

the set of IndexManager(s) where the entities matching the filters are stored