jdbreport.source
Class BufferedDataSet

java.lang.Object
  jdbreport.source.BufferedDataSet

All Implemented Interfaces:

Cloneable, EventListener, DataSetListener, MasterDataSet, ReportDataSet

public class BufferedDataSet
extends Object
implements MasterDataSet, DataSetListener

Version:

2.0 21.01.2011

Author:

Andrey Kholmanskih

Field Summary

protected EventListenerList

listenerList

Constructor Summary

BufferedDataSet(ReportDataSet ds)

BufferedDataSet(ReportDataSet ds, Map<Object,Object> vars)

Method Summary

void	addDataSetListener(DataSetListener listener)
boolean	checkParamsChange(MasterDataSet masterDS)
Object	clone()
void	cursorChange(CursorChangedEvent evt)
boolean	findColumn(String name)
void	fireDataSetCursorChanged()
Collection<String>	getColumnNames() Returns names' collection of columns or properties
Object	getCurrentObject() Returns a current object, can be null
String	getId()
String	getMasterId() Returns id of the leading DataSet
Object	getNextValue(String name)
and.dbcomp.DataSetParams	getParams() Returns parameters
Object	getValue(String name) Returns value from the current record (object) by the name
Map<Object,Object>	getVars()
boolean	hasNext()
boolean	isCursorChange()
boolean	isDsEof()
boolean	isEof()
boolean	next() Moves the cursor on the next record (object) in the DataSet
void	open()
void	removeDataSetListener(DataSetListener listener)
boolean	reopen() Reopens the DataSet when the MasterDataSet changes parameters
void	resetCursorPos()
void	setVars(Map<Object,Object> vars)

Methods inherited from class java.lang.Object

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

Field Detail

listenerList

protected EventListenerList listenerList

Constructor Detail

BufferedDataSet

public BufferedDataSet(ReportDataSet ds)

BufferedDataSet

public BufferedDataSet(ReportDataSet ds,
                       Map<Object,Object> vars)

Method Detail

setVars

public void setVars(Map<Object,Object> vars)

getVars

public Map<Object,Object> getVars()

open

public void open()
          throws ReportException

Throws:

ReportException

reopen

public boolean reopen()
               throws ReportException

Description copied from interface: ReportDataSet

Reopens the DataSet when the MasterDataSet changes parameters

Specified by:

reopen in interface ReportDataSet

Returns:

true if not eof

Throws:

ReportException

next

public boolean next()
             throws ReportException

Description copied from interface: ReportDataSet

Moves the cursor on the next record (object) in the DataSet

Specified by:

next in interface ReportDataSet

Returns:

true if successful

Throws:

ReportException

getValue

public Object getValue(String name)
                throws ReportException

Description copied from interface: ReportDataSet

Returns value from the current record (object) by the name

Specified by:

getValue in interface ReportDataSet

Parameters:

name - - the column's name or the property's name

Returns:

value by the name

Throws:

ReportException

findColumn

public boolean findColumn(String name)

getId

public String getId()

Specified by:

getId in interface ReportDataSet

Returns:

DataSet id

clone

public Object clone()

Specified by:

clone in interface ReportDataSet

Overrides:

clone in class Object

getColumnNames

public Collection<String> getColumnNames()
                                  throws ReportException

Description copied from interface: ReportDataSet

Returns names' collection of columns or properties

Specified by:

getColumnNames in interface ReportDataSet

Returns:

names of columns or properties

Throws:

ReportException

getNextValue

public Object getNextValue(String name)
                    throws ReportException

Throws:

ReportException

isDsEof

public boolean isDsEof()

isEof

public boolean isEof()

addDataSetListener

public void addDataSetListener(DataSetListener listener)

Specified by:

addDataSetListener in interface MasterDataSet

removeDataSetListener

public void removeDataSetListener(DataSetListener listener)

Specified by:

removeDataSetListener in interface MasterDataSet

fireDataSetCursorChanged

public void fireDataSetCursorChanged()

getParams

public and.dbcomp.DataSetParams getParams()
                                   throws ReportException

Description copied from interface: ReportDataSet

Returns parameters

Specified by:

getParams in interface ReportDataSet

Returns:

parameters

Throws:

ReportException

checkParamsChange

public boolean checkParamsChange(MasterDataSet masterDS)

cursorChange

public void cursorChange(CursorChangedEvent evt)

Specified by:

cursorChange in interface DataSetListener

getMasterId

public String getMasterId()

Description copied from interface: ReportDataSet

Returns id of the leading DataSet

Specified by:

getMasterId in interface ReportDataSet

Returns:

masterId property

resetCursorPos

public void resetCursorPos()

isCursorChange

public boolean isCursorChange()

getCurrentObject

public Object getCurrentObject()

Description copied from interface: ReportDataSet

Returns a current object, can be null

Specified by:

getCurrentObject in interface ReportDataSet

Returns:

- current object

hasNext

public boolean hasNext()

Specified by:

hasNext in interface ReportDataSet