org.openspaces.persistency.hibernate.iterator
Class DefaultScrollableDataIterator

java.lang.Object
  org.openspaces.persistency.hibernate.iterator.AbstractScrollableDataIterator
      org.openspaces.persistency.hibernate.iterator.DefaultScrollableDataIterator

All Implemented Interfaces:

DataIterator, Iterator

public class DefaultScrollableDataIterator
extends AbstractScrollableDataIterator

A default scrollable result iterator based on Hibernate Session.

Author:

kimchy

Field Summary

protected org.hibernate.Session	session
protected org.hibernate.Transaction	transaction

Fields inherited from class org.openspaces.persistency.hibernate.iterator.AbstractScrollableDataIterator

entityName, fetchSize, from, hQuery, perfromOrderById, sessionFactory, size, sqlQuery

Constructor Summary

DefaultScrollableDataIterator(SQLQuery sqlQuery, org.hibernate.SessionFactory sessionFactory, int fetchSize, boolean performOrderById)
Constructs a scrollable iterator over the given GigaSpaces SQLQuery.

DefaultScrollableDataIterator(SQLQuery sqlQuery, org.hibernate.SessionFactory sessionFactory, int fetchSize, boolean performOrderById, int from, int size)
Constructs a scrollable iterator over the given GigaSpaces SQLQuery.

DefaultScrollableDataIterator(String hQuery, org.hibernate.SessionFactory sessionFactory, int fetchSize)
Constructs a scrollable iterator over the given hibernate query string.

DefaultScrollableDataIterator(String entityName, org.hibernate.SessionFactory sessionFactory, int fetchSize, boolean performOrderById)
Constructs a scrollable iterator over the given entity name.

DefaultScrollableDataIterator(String entityName, org.hibernate.SessionFactory sessionFactory, int fetchSize, boolean performOrderById, int from, int size)
Constructs a scrollable iterator over the given entity name.

DefaultScrollableDataIterator(String hQuery, org.hibernate.SessionFactory sessionFactory, int fetchSize, int from, int size)
Constructs a scrollable iterator over the given hibernate query string.

Method Summary

protected void	clear()
protected org.hibernate.ScrollableResults	createCursor()
protected void	doClose()

Methods inherited from class org.openspaces.persistency.hibernate.iterator.AbstractScrollableDataIterator

close, hasNext, next, remove

Methods inherited from class java.lang.Object

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

Field Detail

session

protected org.hibernate.Session session

transaction

protected org.hibernate.Transaction transaction

Constructor Detail

DefaultScrollableDataIterator

public DefaultScrollableDataIterator(String entityName,
                                     org.hibernate.SessionFactory sessionFactory,
                                     int fetchSize,
                                     boolean performOrderById)

Constructs a scrollable iterator over the given entity name.

Parameters:

entityName - The entity name to scroll over

sessionFactory - The session factory to use to construct the session

fetchSize - The fetch size of the scrollabale result set

performOrderById - Should the query perform order by id or not

DefaultScrollableDataIterator

public DefaultScrollableDataIterator(String entityName,
                                     org.hibernate.SessionFactory sessionFactory,
                                     int fetchSize,
                                     boolean performOrderById,
                                     int from,
                                     int size)

Constructs a scrollable iterator over the given entity name.

Parameters:

entityName - The entity name to scroll over

sessionFactory - The session factory to use to constrcut the session

fetchSize - The fetch size of the scrollable result set

performOrderById - Should the query perform order by id or not

from - The from index to scroll from

size - The size of data to scroll to

DefaultScrollableDataIterator

public DefaultScrollableDataIterator(SQLQuery sqlQuery,
                                     org.hibernate.SessionFactory sessionFactory,
                                     int fetchSize,
                                     boolean performOrderById)

Constructs a scrollable iterator over the given GigaSpaces SQLQuery.

Parameters:

sqlQuery - The SQLQuery to scroll over

sessionFactory - The session factory to use to construct the session

fetchSize - The fetch size of the scrollabale result set

performOrderById - Should the query perform order by id or not

DefaultScrollableDataIterator

public DefaultScrollableDataIterator(SQLQuery sqlQuery,
                                     org.hibernate.SessionFactory sessionFactory,
                                     int fetchSize,
                                     boolean performOrderById,
                                     int from,
                                     int size)

Constructs a scrollable iterator over the given GigaSpaces SQLQuery.

Parameters:

sqlQuery - The SQLQuery to scroll over

sessionFactory - The session factory to use to constrcut the session

fetchSize - The fetch size of the scrollable result set

performOrderById - Should the query perform order by id or not

from - The from index to scroll from

size - The size of data to scroll to

DefaultScrollableDataIterator

public DefaultScrollableDataIterator(String hQuery,
                                     org.hibernate.SessionFactory sessionFactory,
                                     int fetchSize)

Constructs a scrollable iterator over the given hibernate query string.

Parameters:

hQuery - The hiberante query string to scroll over

sessionFactory - The session factory to use to construct the session

fetchSize - The fetch size of the scrollabale result set

DefaultScrollableDataIterator

public DefaultScrollableDataIterator(String hQuery,
                                     org.hibernate.SessionFactory sessionFactory,
                                     int fetchSize,
                                     int from,
                                     int size)

Constructs a scrollable iterator over the given hibernate query string.

Parameters:

hQuery - The hiberante query string to scroll over

sessionFactory - The session factory to use to constrcut the session

fetchSize - The fetch size of the scrollable result set

from - The from index to scroll from

size - The size of data to scroll to

Method Detail

doClose

protected void doClose()

Specified by:

doClose in class AbstractScrollableDataIterator

clear

protected void clear()

Specified by:

clear in class AbstractScrollableDataIterator

createCursor

protected org.hibernate.ScrollableResults createCursor()

Specified by:

createCursor in class AbstractScrollableDataIterator