Package net.sf.jasperreports.j2ee.hibernate

Class JRHibernateListDataSource

java.lang.Object

net.sf.jasperreports.j2ee.hibernate.JRHibernateAbstractDataSource

net.sf.jasperreports.j2ee.hibernate.JRHibernateListDataSource

All Implemented Interfaces:

JRDataSource, JRRewindableDataSource

public class JRHibernateListDataSource
extends JRHibernateAbstractDataSource
implements JRRewindableDataSource

Hibernate data source that uses org.hibernate.Query.list().

The query result can be paginated by not retrieving all the rows at once.

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

See Also:

HibernateConstants.PROPERTY_HIBERNATE_QUERY_LIST_PAGE_SIZE

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.jasperreports.j2ee.hibernate.JRHibernateAbstractDataSource

JRHibernateAbstractDataSource.FieldReader, JRHibernateAbstractDataSource.IdentityFieldReader, JRHibernateAbstractDataSource.IndexFieldReader, JRHibernateAbstractDataSource.IndexPropertyFieldReader, JRHibernateAbstractDataSource.PropertyFieldReader

Field Summary

Fields inherited from class net.sf.jasperreports.j2ee.hibernate.JRHibernateAbstractDataSource

EXCEPTION_MESSAGE_KEY_FIELD_ALIAS_TYPE_MISMATCH, EXCEPTION_MESSAGE_KEY_MANY_FIELDS_DETECTED, EXCEPTION_MESSAGE_KEY_NO_FIELD_ALIAS, EXCEPTION_MESSAGE_KEY_NO_FIELD_READER, EXCEPTION_MESSAGE_KEY_UNKNOWN_RETURN_ALIAS, queryExecuter

Constructor Summary

Constructors

Constructor	Description
JRHibernateListDataSource(JRHibernateQueryExecuter queryExecuter, boolean useFieldDescription, int pageSize)

Method Summary

Modifier and Type	Method	Description
protected void	fetchPage()
void	moveFirst()	Moves back to the first element in the data source.
boolean	next()	Tries to position the cursor on the next element in the data source.

Methods inherited from class net.sf.jasperreports.j2ee.hibernate.JRHibernateAbstractDataSource

assignReaders, getFieldMapping, getFieldReader, getFieldReaderSingleReturn, getFieldValue, setCurrentRowValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.jasperreports.engine.JRDataSource

getFieldValue

Constructor Detail

JRHibernateListDataSource

public JRHibernateListDataSource(JRHibernateQueryExecuter queryExecuter,
                                 boolean useFieldDescription,
                                 int pageSize)

Method Detail

fetchPage

protected void fetchPage()

next

public boolean next()

Description copied from interface: JRDataSource

Tries to position the cursor on the next element in the data source.

Specified by:

next in interface JRDataSource

Returns:

true if there is a next record, false otherwise

moveFirst

public void moveFirst()

Description copied from interface: JRRewindableDataSource

Moves back to the first element in the data source.

Specified by:

moveFirst in interface JRRewindableDataSource