com.hardcode.gdbms.engine.data
Class SpatialDataSourceImpl

java.lang.Object
  com.hardcode.gdbms.engine.data.SpatialDataSourceImpl

public class SpatialDataSourceImpl
extends java.lang.Object

Constructor Summary

SpatialDataSourceImpl(SpatialDataSource t, SpatialDriver driver)

Method Summary

void	buildIndex()
void	clearIndex() Performs the pending deletions and removes the spatial index
void	deleteRow(long rowIndex, Value v) Deletes the geometry at the specified index.
java.awt.geom.Rectangle2D	getFullExtent()
java.awt.geom.Rectangle2D	getGeometryBounds(long rowIndex)
int	getGeometryType()
void	insertEmptyRow(int i) Inserts an empty row in the spatial index
void	insertFilledRow(Value v, int rowCountBeforeInsertion) Inserts a geometry at the end of the theme
boolean	isIndexed()
java.util.List	queryIndex(java.awt.geom.Rectangle2D rect) Gets a list of the indexes in the theme of those geometries affected by the rect argument
void	restoreStatus()
void	saveStatus()
void	setFieldValue(long rowIndex, Value oldGeometry, Value newGeometry) Changes the geometry at the specified index
void	setRecalculateExtent(boolean recalculateExtent)
void	undoDeletion(int index)

Methods inherited from class java.lang.Object

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

Constructor Detail

SpatialDataSourceImpl

public SpatialDataSourceImpl(SpatialDataSource t,
                             SpatialDriver driver)

Method Detail

getGeometryType

public int getGeometryType()
                    throws DriverException

Throws:

DriverException

getFullExtent

public java.awt.geom.Rectangle2D getFullExtent()
                                        throws DriverException

Throws:

DriverException

buildIndex

public void buildIndex()
                throws DriverException

Throws:

DriverException

saveStatus

public void saveStatus()

restoreStatus

public void restoreStatus()

clearIndex

public void clearIndex()
                throws DriverException

Performs the pending deletions and removes the spatial index

Throws:

DriverException - If a deletion fails

isIndexed

public boolean isIndexed()

insertFilledRow

public void insertFilledRow(Value v,
                            int rowCountBeforeInsertion)
                     throws DriverException

Inserts a geometry at the end of the theme

Parameters:

g - Geometry to insert

rowCountBeforeInsertion - Position of the geometry

Throws:

DriverException

deleteRow

public void deleteRow(long rowIndex,
                      Value v)
               throws DriverException

Deletes the geometry at the specified index. Geometry indexes can't change so the theme must set the geometry to null and not delete it.

Parameters:

rowIndex - index of the geometry

g - geometry to delete

Throws:

DriverException

setFieldValue

public void setFieldValue(long rowIndex,
                          Value oldGeometry,
                          Value newGeometry)
                   throws DriverException

Changes the geometry at the specified index

Parameters:

rowIndex - Index of the geometry

oldGeometry - Geometry to be replaced

newGeometry - new geometry

Throws:

DriverException

queryIndex

public java.util.List queryIndex(java.awt.geom.Rectangle2D rect)

Gets a list of the indexes in the theme of those geometries affected by the rect argument

Parameters:

rect - Query rectangle

Returns:

List Of Integer

insertEmptyRow

public void insertEmptyRow(int i)
                    throws DriverException

Inserts an empty row in the spatial index

Parameters:

i -

Throws:

DriverException

undoDeletion

public void undoDeletion(int index)

setRecalculateExtent

public void setRecalculateExtent(boolean recalculateExtent)

getGeometryBounds

public java.awt.geom.Rectangle2D getGeometryBounds(long rowIndex)
                                            throws DriverException

Throws:

DriverException