org.openspaces.persistency.hibernate
Class CriteriaHibernateExternalDataSource

java.lang.Object
  org.openspaces.persistency.hibernate.AbstractHibernateExternalDataSource
      org.openspaces.persistency.hibernate.DefaultHibernateExternalDataSource
          org.openspaces.persistency.hibernate.CriteriaHibernateExternalDataSource

All Implemented Interfaces:

BulkDataPersister, DataProvider, ManagedDataSource, SQLDataProvider, ManagedDataSourceEntriesProvider

public class CriteriaHibernateExternalDataSource
extends DefaultHibernateExternalDataSource
implements DataProvider

An extension over the default implemenation that also implements DataProvider (not needed by default). The class main use is to override Hibernate bugs whene executing queries with composite objects.

Author:

kimchy

Field Summary

Fields inherited from class org.openspaces.persistency.hibernate.AbstractHibernateExternalDataSource

HIBERNATE_CFG_PROPERTY, logger

Fields inherited from interface com.gigaspaces.datasource.ManagedDataSource

DATA_CLASS_PROPS, NUMBER_OF_PARTITIONS, STATIC_PARTITION_NUMBER

Constructor Summary

CriteriaHibernateExternalDataSource()

Method Summary

protected Object	getId(Object template) Return pojo identifier
protected org.hibernate.metadata.ClassMetadata	getMetadata(Object entry) Return pojo entry metadata
DataIterator	iterator(Object template) Create an iterator over all objects that match the given template.
Object	read(Object template) Read one object that matches the given template.

Methods inherited from class org.openspaces.persistency.hibernate.DefaultHibernateExternalDataSource

executeBulk, getIdentifier, initialLoad, iterator, setDeleteById, setUseMerge

Methods inherited from class org.openspaces.persistency.hibernate.AbstractHibernateExternalDataSource

createInitialLoadIterator, getFetchSize, getInitialLoadChunkSize, getInitialLoadEntries, getManagedEntries, getSessionFactory, init, isManagedEntry, isPerformOrderById, isUseScrollableResultSet, setFetchSize, setInitialLoadChunkSize, setInitialLoadEntries, setInitialLoadThreadPoolSize, setManagedEntries, setPerformOrderById, setSessionFactory, setUseScrollableResultSet, shutdown

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.gigaspaces.datasource.ManagedDataSource

init, initialLoad, shutdown

Constructor Detail

CriteriaHibernateExternalDataSource

public CriteriaHibernateExternalDataSource()

Method Detail

read

public Object read(Object template)
            throws DataSourceException

Description copied from interface: DataProvider

Read one object that matches the given template.
Used by the space for read templates with UID.

Specified by:

read in interface DataProvider

Returns:

matched object or null

Throws:

DataSourceException

iterator

public DataIterator iterator(Object template)
                      throws DataSourceException

Description copied from interface: DataProvider

Create an iterator over all objects that match the given template.
Note: null value can be passed - in case of a null template or at initial space load. If SQLDataProvider interface is also implemented - the space will use SQLDataProvider.iterator instead.

Specified by:

iterator in interface DataProvider

Returns:

a DataIterator or null if no data was found that match the given template

Throws:

DataSourceException

getId

protected Object getId(Object template)

Return pojo identifier

getMetadata

protected org.hibernate.metadata.ClassMetadata getMetadata(Object entry)

Return pojo entry metadata