Package oracle.spatial.network.nfe.vis.maps.index

Class AbstractIndexedDataSet

java.lang.Object

oracle.spatial.network.nfe.vis.maps.index.AbstractIndexedDataSet

public abstract class AbstractIndexedDataSet
extends java.lang.Object

An indexed dataset that is associated to a data layer

Field Summary

Fields

Modifier and Type	Field	Description
protected AbstractDataSet	dataSet	Data set object.
protected AbstractDataSetLayer	dataSetLayer	The layer owning this object
protected AbstractSpatialIndex	sptIndex	Spatial index object that contains the data set features, and is based on the feature MBR's.

Constructor Summary

Constructors

Constructor	Description
AbstractIndexedDataSet()

Method Summary

Modifier and Type	Method	Description
boolean	addFeature(AbstractFeature feature)	Adds a new feature to index data set.
boolean	appendFeature(AbstractFeature feature)	Appends a feature to index data set.
AbstractFeature	getAbstractFeature(java.lang.String featKey)	Returns the feature associated to the given key Returns the abstract feature
AbstractDataSet	getDataSet()
AbstractDataSetLayer	getDataSetLayer()	Returns the layer owning this object
java.util.Set<GeoObject>	getFeatures(java.awt.geom.Area area)	Returns all the features that interact with the given area
java.util.List<GeoObject>	getFeatures(java.awt.geom.Point2D point, double tolerance)	Returns all the features interacting with the given point used the specified tolerance as buffer around the point
java.util.List<GeoObject>	getFeatures(java.awt.geom.Rectangle2D mbr)	Returns all the features that interact with the given MBR
java.util.List<GeoObject>	getFeaturesByAttribute(java.awt.geom.Rectangle2D mbr, oracle.mapviewer.share.Field attribute)	Returns the feature that interact with input mbr and have an attribute value equal to input attribute.
AbstractSpatialIndex	getSpatialindex()
abstract AbstractFeature	identify(java.awt.geom.Point2D point, double tolerance, int granularity)	Returns a feature that is located at the given point using the specified tolerance
void	redo(EditChangeEvent change)	Restores the last edit operation.
boolean	removeFeature(AbstractFeature feature)	Removes feature from index data set.
void	setDataSetLayer(AbstractDataSetLayer dataSetLayer)
void	setSpatialIndex(AbstractSpatialIndex index)
void	undo(EditChangeEvent change)	Removes the last edit operation.
boolean	updateSpatialAttribute(java.lang.Object key, java.lang.Object spatialChange)	Updates feature of index data set.

Methods inherited from class java.lang.Object

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

Field Detail

dataSetLayer

protected AbstractDataSetLayer dataSetLayer

The layer owning this object

dataSet

protected AbstractDataSet dataSet

Data set object.

sptIndex

protected AbstractSpatialIndex sptIndex

Spatial index object that contains the data set features, and is based on the feature MBR's.

Constructor Detail

AbstractIndexedDataSet

public AbstractIndexedDataSet()

Method Detail

getDataSet

public AbstractDataSet getDataSet()

Returns:

getSpatialindex

public AbstractSpatialIndex getSpatialindex()

Returns:

setSpatialIndex

public void setSpatialIndex(AbstractSpatialIndex index)

Parameters:

index -

addFeature

public boolean addFeature(AbstractFeature feature)
                   throws java.lang.Exception

Adds a new feature to index data set. Data set must be read-write mode. Data set change manager records change.

Parameters:

feature -

Returns:

Throws:

java.lang.Exception

appendFeature

public boolean appendFeature(AbstractFeature feature)
                      throws java.lang.Exception

Appends a feature to index data set. Data set change manager does not record change. Use this method if you want to extend the feature list, but do not want to record it as a data set change.

Parameters:

feature -

Returns:

Throws:

java.lang.Exception

removeFeature

public boolean removeFeature(AbstractFeature feature)
                      throws java.lang.Exception

Removes feature from index data set. Data set must be read-write mode. Data set change manager records change.

Parameters:

feature -

Returns:

Throws:

java.lang.Exception

updateSpatialAttribute

public boolean updateSpatialAttribute(java.lang.Object key,
                                      java.lang.Object spatialChange)
                               throws java.lang.Exception

Updates feature of index data set. Data set must be read-write mode. Data set change manager records change.

Parameters:

key -

spatialChange -

Returns:

Throws:

java.lang.Exception

getFeatures

public java.util.List<GeoObject> getFeatures(java.awt.geom.Point2D point,
                                             double tolerance)

Returns all the features interacting with the given point used the specified tolerance as buffer around the point

Parameters:

point -

tolerance -

Returns:

a list of interacting features

getFeatures

public java.util.List<GeoObject> getFeatures(java.awt.geom.Rectangle2D mbr)

Returns all the features that interact with the given MBR

Parameters:

mbr -

Returns:

a list of interacting features

getFeatures

public java.util.Set<GeoObject> getFeatures(java.awt.geom.Area area)

Returns all the features that interact with the given area

Parameters:

area -

Returns:

a set of interacting features

getAbstractFeature

public AbstractFeature getAbstractFeature(java.lang.String featKey)

Returns the feature associated to the given key Returns the abstract feature

Parameters:

featKey - a feature or null if the feature was not found for the key

Returns:

undo

public void undo(EditChangeEvent change)
          throws java.lang.Exception

Removes the last edit operation.

Parameters:

change -

Throws:

java.lang.Exception

redo

public void redo(EditChangeEvent change)
          throws java.lang.Exception

Restores the last edit operation.

Parameters:

change -

Throws:

java.lang.Exception

identify

public abstract AbstractFeature identify(java.awt.geom.Point2D point,
                                         double tolerance,
                                         int granularity)

Returns a feature that is located at the given point using the specified tolerance

Parameters:

point -

tolerance -

granularity -

Returns:

a feature or null if no point is located at the given point

setDataSetLayer

public void setDataSetLayer(AbstractDataSetLayer dataSetLayer)

getDataSetLayer

public AbstractDataSetLayer getDataSetLayer()

Returns the layer owning this object

Returns:

getFeaturesByAttribute

public java.util.List<GeoObject> getFeaturesByAttribute(java.awt.geom.Rectangle2D mbr,
                                                        oracle.mapviewer.share.Field attribute)

Returns the feature that interact with input mbr and have an attribute value equal to input attribute.

Parameters:

mbr -

attribute - should of same type as feature attribute.

Returns: