mil.nga.geopackage.extension.index

Class FeatureTableIndex

java.lang.Object

FeatureTableCoreIndex

mil.nga.geopackage.extension.index.FeatureTableIndex

public class FeatureTableIndex
extends FeatureTableCoreIndex

Feature Table Index NGA Extension implementation. This extension is used to index Geometries within a feature table by their minimum bounding box for bounding box queries. This extension is required to provide an index implementation when a SQLite version is used before SpatialLite support (Android).

Since:

1.1.0

Constructor Summary

Constructors

Constructor and Description
FeatureTableIndex(GeoPackage geoPackage, FeatureDao featureDao) Constructor

Method Summary

Modifier and Type	Method and Description
void	close() Close the table index
long	count(BoundingBox boundingBox, Projection projection) Query for Geometry Index count within the bounding box in the provided projection
int	deleteIndex(FeatureRow row) Delete the index for the feature row
FeatureRow	getFeatureRow(GeometryIndex geometryIndex) Get the feature row for the Geometry Index
boolean	index(FeatureRow row) Index the feature row.
protected int	indexTable(TableIndex tableIndex)
<any>	query(BoundingBox boundingBox, Projection projection) Query for Geometry Index objects within the bounding box in the provided projection

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureTableIndex

public FeatureTableIndex(GeoPackage geoPackage,
                         FeatureDao featureDao)

Constructor

Parameters:

geoPackage -

featureDao -

Method Detail

close

public void close()

Close the table index

index

public boolean index(FeatureRow row)

Index the feature row. This method assumes that indexing has been completed and maintained as the last indexed time is updated.

Parameters:

row -

Returns:

true if indexed

indexTable

protected int indexTable(TableIndex tableIndex)

deleteIndex

public int deleteIndex(FeatureRow row)

Delete the index for the feature row

Parameters:

row -

Returns:

deleted rows, should be 0 or 1

query

public <any> query(BoundingBox boundingBox,
                   Projection projection)

Query for Geometry Index objects within the bounding box in the provided projection

Parameters:

boundingBox -

projection - projection of the provided bounding box

Returns:

geometry indices iterator

count

public long count(BoundingBox boundingBox,
                  Projection projection)

Query for Geometry Index count within the bounding box in the provided projection

Parameters:

boundingBox -

projection - projection of the provided bounding box

Returns:

count

getFeatureRow

public FeatureRow getFeatureRow(GeometryIndex geometryIndex)

Get the feature row for the Geometry Index

Parameters:

geometryIndex -

Returns:

feature row