ilog.views.maps.datasource
Class IlvGraphicLayerDataSource

java.lang.Object
  ilog.views.maps.datasource.IlvMapDataSource
      ilog.views.maps.datasource.IlvGraphicLayerDataSource

All Implemented Interfaces:

IlvPersistentObject, IlvFeatureRenderer, IlvMapFeatureIterator, IlvMapReusableFeatureIterator

Direct Known Subclasses:

IlvPolylineMergerDataSource, IlvPolylineSimplifierDataSource

public class IlvGraphicLayerDataSource
extends IlvMapDataSource
implements IlvMapReusableFeatureIterator, IlvFeatureRenderer

Creates a datasource based on a dynamic vector of IlvGraphic objects. Using add(IlvGraphic), the application will add to the list of objects, that will then be available through the getNextFeature() calls, and will be stored and retrieved when the map is saved.

Since:

JViews 7.5

Field Summary

Fields inherited from class ilog.views.maps.datasource.IlvMapDataSource

renderer, usingGeodeticComputation

Constructor Summary

IlvGraphicLayerDataSource()
Default constructor.

IlvGraphicLayerDataSource(IlvInputStream stream)
Reads an IlvGraphicLayerDataSource from an IlvInputStream

Method Summary

void	add(IlvGraphic graphic) Adds an IlvGraphic object (in the manager's coordinate system) to this dynamic datasource.
void	add(IlvGraphic graphic, IlvCoordinateSystem cs) Adds an IlvGraphic object using the specified coordinate system to this dynamic datasource.
void	clear() Clears the list of IlvGraphic in this dynamic datasource.
void	dispose() This feature iterator method does nothing.
IlvGraphic	get(int index) Returns the graphic object at specified index.
IlvFeatureRenderer	getDefaultFeatureRenderer() Returns this data source.
IlvMapReusableFeatureIterator	getFeatureIterator() Retrieves the feature iterator used by this data source.
IlvCoordinate	getLowerRightCorner() Returns null.
IlvThreadMonitoringData	getMonitoringData() Returns the monitorData.
IlvMapFeature	getNextFeature() Returns the next map feature of the iterator or null if the iteration is finished.
IlvCoordinate	getUpperLeftCorner() Returns null.
boolean	isGeoreferenced() Returns false.
boolean	isPersistent() Returns true.
IlvGraphic	makeGraphic(IlvMapFeature arg0, IlvCoordinateTransformation transform) Goes through the vector of known IlvGraphic registered with add(IlvGraphic) and uses IlvMapGraphic.copy(IlvCoordinateTransformation) to transform them to the new manager transformation.
boolean	remove(IlvGraphic graphic) Removes an IlvGraphic object from this dynamic datasource.
void	restart() Rewinds the iterator for a new use.
void	setCoordinateSystem(IlvCoordinateSystem coordinateSystem) This method is not allowed for this data source.
void	setManager(IlvManager manager) This method sets both the manager and the coordinate system of the data source.
void	setMonitoringData(IlvThreadMonitoringData monitorData) Sets the monitorData.
int	size() Returns the number of IlvGraphic in this datasource.
void	start() Starts this data source and initiates the rendering process.
void	write(IlvOutputStream stream) Writes an IlvMapDataSource to an IlvOutputStream.

Methods inherited from class ilog.views.maps.datasource.IlvMapDataSource

addDataSourceListener, callListeners, createInsertionLayer, getBackupDataSources, getCoordinateSystem, getDescription, getFeatureRenderer, getInsertionLayer, getManager, getMapLayer, getName, getNode, getValidExtentions, hasInsertionLayer, initBackupDataSource, initInsertionLayer, isAttachingAttributes, isSaveBackupDataSources, isSourceDataAvailable, isUsingGeodeticComputation, mapIntersects, removeDataSourceListener, reset, setAttachingAttributes, setDescription, setFeatureRenderer, setForceUsingBackupDataSource, setInsertionLayer, setName, setSaveBackupDataSources, setValidExtentions, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface ilog.views.maps.IlvMapFeatureIterator

getCoordinateSystem

Constructor Detail

IlvGraphicLayerDataSource

public IlvGraphicLayerDataSource()

Default constructor. Creates an empty data source.

IlvGraphicLayerDataSource

public IlvGraphicLayerDataSource(IlvInputStream stream)
                          throws IlvReadFileException

Reads an IlvGraphicLayerDataSource from an IlvInputStream

Parameters:

stream - The stream to read from.

Throws:

IlvReadFileException

Method Detail

write

public void write(IlvOutputStream stream)
           throws IOException

Writes an IlvMapDataSource to an IlvOutputStream.

Specified by:

write in interface IlvPersistentObject

Specified by:

write in interface IlvFeatureRenderer

Overrides:

write in class IlvMapDataSource

Parameters:

stream - The stream to write to.

Throws:

IOException - thrown when an exception occurs during the write operation for this object.

See Also:

IlvFeatureRenderer.write(ilog.views.io.IlvOutputStream)

restart

public void restart()

Rewinds the iterator for a new use.

Specified by:

restart in interface IlvMapReusableFeatureIterator

See Also:

IlvMapReusableFeatureIterator.restart()

start

public void start()
           throws Exception

Starts this data source and initiates the rendering process. The map features are read from the reader and the graphic objects are rendered and inserted into the manager.

Overrides:

start in class IlvMapDataSource

Throws:

Exception

See Also:

IlvMapDataSource.start()

setCoordinateSystem

public void setCoordinateSystem(IlvCoordinateSystem coordinateSystem)

This method is not allowed for this data source. The coordinate system should be set through the use of setManager. As the objects added in this data source are pre-rendered IlvGraphic, the coordinate system must be exactly the manager's one, at the moment the object is added.

Overrides:

setCoordinateSystem in class IlvMapDataSource

Parameters:

coordinateSystem - The coordinate system of this data source.

See Also:

IlvMapDataSource.setCoordinateSystem(ilog.views.maps.srs.coordsys.IlvCoordinateSystem)

setManager

public void setManager(IlvManager manager)

This method sets both the manager and the coordinate system of the data source.

Overrides:

setManager in class IlvMapDataSource

Parameters:

manager - The manager.

See Also:

setCoordinateSystem(IlvCoordinateSystem), IlvMapDataSource.setManager(ilog.views.IlvManager)

getNextFeature

public IlvMapFeature getNextFeature()

Returns the next map feature of the iterator or null if the iteration is finished. The returned map feature must be considered as volatile and can be modified by the reader during the next call to its getNextFeature function.

Specified by:

getNextFeature in interface IlvMapFeatureIterator

See Also:

IlvMapFeatureIterator.getNextFeature()

isGeoreferenced

public boolean isGeoreferenced()

Returns false.

Specified by:

isGeoreferenced in interface IlvMapFeatureIterator

Returns:

Returns false.

See Also:

IlvMapFeatureIterator.isGeoreferenced()

getUpperLeftCorner

public IlvCoordinate getUpperLeftCorner()

Returns null.

Specified by:

getUpperLeftCorner in interface IlvMapFeatureIterator

Returns:

Returns null.

See Also:

IlvMapFeatureIterator.getUpperLeftCorner()

getLowerRightCorner

public IlvCoordinate getLowerRightCorner()

Returns null.

Specified by:

getLowerRightCorner in interface IlvMapFeatureIterator

Returns:

Returns null.

See Also:

IlvMapFeatureIterator.getLowerRightCorner()

getDefaultFeatureRenderer

public IlvFeatureRenderer getDefaultFeatureRenderer()

Returns this data source.

Specified by:

getDefaultFeatureRenderer in interface IlvMapFeatureIterator

Returns:

Returns this data source.

See Also:

IlvMapFeatureIterator.getLowerRightCorner()

dispose

public void dispose()

This feature iterator method does nothing.

Specified by:

dispose in interface IlvMapFeatureIterator

See Also:

IlvMapFeatureIterator.dispose()

makeGraphic

public IlvGraphic makeGraphic(IlvMapFeature arg0,
                              IlvCoordinateTransformation transform)

Goes through the vector of known IlvGraphic registered with add(IlvGraphic) and uses IlvMapGraphic.copy(IlvCoordinateTransformation) to transform them to the new manager transformation.

Specified by:

makeGraphic in interface IlvFeatureRenderer

Parameters:

arg0 - The map feature to translate.

transform - The transformation used to convert coordinates of the map feature.

See Also:

IlvFeatureRenderer.makeGraphic(ilog.views.maps.IlvMapFeature, ilog.views.maps.srs.coordtrans.IlvCoordinateTransformation)

isPersistent

public boolean isPersistent()

Returns true.

Specified by:

isPersistent in interface IlvFeatureRenderer

Returns:

Returns true.

See Also:

IlvFeatureRenderer.isPersistent()

add

public void add(IlvGraphic graphic)

Adds an IlvGraphic object (in the manager's coordinate system) to this dynamic datasource.

Parameters:

graphic - graphic object to manage with this datasource.

add

public void add(IlvGraphic graphic,
                IlvCoordinateSystem cs)

Adds an IlvGraphic object using the specified coordinate system to this dynamic datasource.

Parameters:

graphic - graphic object to manage with this datasource.

cs - coordinate system used by the graphics passed.

Since:

JViews 7.5

remove

public boolean remove(IlvGraphic graphic)

Removes an IlvGraphic object from this dynamic datasource.

Parameters:

graphic - graphic object to manage with this datasource.

Returns:

true if the data source contained this graphic.

Since:

JViews 7.5

size

public int size()

Returns the number of IlvGraphic in this datasource.

Returns:

the number of IlvGraphic in this datasource.

get

public IlvGraphic get(int index)

Returns the graphic object at specified index.

Parameters:

index - index of IlvGraphic to return.

Returns:

object at the specified index

Throws:

ArrayIndexOutOfBoundsException - index is out of range

clear

public void clear()

Clears the list of IlvGraphic in this dynamic datasource.

getFeatureIterator

public IlvMapReusableFeatureIterator getFeatureIterator()

Retrieves the feature iterator used by this data source.

Specified by:

getFeatureIterator in class IlvMapDataSource

Returns:

The feature iterator.

See Also:

IlvMapDataSource.getFeatureIterator()

getMonitoringData

public IlvThreadMonitoringData getMonitoringData()

Returns the monitorData.

Returns:

Returns the monitorData.

Since:

JViews 8.0

setMonitoringData

public void setMonitoringData(IlvThreadMonitoringData monitorData)

Sets the monitorData.

Parameters:

monitorData - The monitorData to set.

Since:

JViews 8.0