Package net.sf.jasperreports.engine.fill

Class SortedDataSource

java.lang.Object

net.sf.jasperreports.engine.fill.SortedDataSource

All Implemented Interfaces:

IndexedDataSource, JRDataSource, JRRewindableDataSource

public class SortedDataSource
extends Object
implements JRRewindableDataSource, IndexedDataSource

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SortedDataSource.SortRecord

Field Summary

Fields

Modifier and Type	Field	Description
static String	EXCEPTION_MESSAGE_KEY_FIELD_NOT_FOUND

Constructor Summary

Constructors

Constructor	Description
SortedDataSource(DatasetSortInfo sortInfo, List<SortedDataSource.SortRecord> records, Integer[] recordIndexes)

Method Summary

Modifier and Type	Method	Description
Object	getFieldValue(JRField jrField)	Gets the field value for the current position.
JRDataSource	getOriginalDataSource()
int	getRecordIndex()	Returns the index of the current record in the data source.
List<SortedDataSource.SortRecord>	getRecords()
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.
void	setRecordFilteredIndex(int index)

Methods inherited from class java.lang.Object

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

Field Detail

EXCEPTION_MESSAGE_KEY_FIELD_NOT_FOUND

public static final String EXCEPTION_MESSAGE_KEY_FIELD_NOT_FOUND

See Also:

Constant Field Values

Constructor Detail

SortedDataSource

public SortedDataSource(DatasetSortInfo sortInfo,
                        List<SortedDataSource.SortRecord> records,
                        Integer[] recordIndexes)

Method Detail

getOriginalDataSource

public JRDataSource getOriginalDataSource()
                                   throws JRException

Throws:

JRException

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

setRecordFilteredIndex

public void setRecordFilteredIndex(int index)

getFieldValue

public Object getFieldValue(JRField jrField)

Description copied from interface: JRDataSource

Gets the field value for the current position.

Specified by:

getFieldValue in interface JRDataSource

Returns:

an object containing the field value. The object type must be the field object type.

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

getRecordIndex

public int getRecordIndex()

Description copied from interface: IndexedDataSource

Returns the index of the current record in the data source. Note that this would not necessarily be the same as the index of the record in the order in which the data appears in the report, as after sorting or filtering a data source the original index of the record will be returned.

Specified by:

getRecordIndex in interface IndexedDataSource

Returns:

the index of the current record

getRecords

public List<SortedDataSource.SortRecord> getRecords()