mil.nga.geopackage.db

Class FeatureIndexer

java.lang.Object

mil.nga.geopackage.db.FeatureIndexer

public class FeatureIndexer
extends java.lang.Object

Feature Indexer, indexes feature geometries into a table for searching

Constructor Summary

Constructors

Constructor and Description
FeatureIndexer(android.content.Context context, FeatureDao featureDao) Constructor

Method Summary

Modifier and Type	Method and Description
void	close() Close the database connection in the feature indexer
int	count() Query for all Geometry Metadata count
int	count(BoundingBox boundingBox) Query for Geometry Metadata count within the bounding box, projected correctly
long	count(BoundingBox boundingBox, Projection projection) Query for Geometry Metadata count within the bounding box in the provided projection
int	count(GeometryEnvelope envelope) Query for Geometry Metadata count within the Geometry Envelope
boolean	deleteIndex() Delete the feature table index
boolean	deleteIndex(FeatureRow row) Delete the index for the feature row
boolean	deleteIndex(long geomId) Delete the index for the geometry id
FeatureRow	getFeatureRow(android.database.Cursor cursor) Get the feature row for the current place in the cursor
FeatureRow	getFeatureRow(GeometryMetadata geometryMetadata) Get the feature row for the Geometry Metadata
GeometryMetadata	getGeometryMetadata(android.database.Cursor cursor) Get the Geometry Metadata for the current place in the cursor
java.util.Date	getLastIndexed() Get the date last indexed
int	index() Index the feature table if needed
int	index(boolean force) Index the feature table
boolean	index(FeatureRow row) Index the feature row.
boolean	isIndexed() Determine if the database table is indexed after database modifications
android.database.Cursor	query() Query for all Geometry Metadata
android.database.Cursor	query(BoundingBox boundingBox) Query for Geometry Metadata within the bounding box, projected correctly
android.database.Cursor	query(BoundingBox boundingBox, Projection projection) Query for Geometry Metadata within the bounding box in the provided projection
android.database.Cursor	query(GeometryEnvelope envelope) Query for Geometry Metadata within the Geometry Envelope
void	setProgress(GeoPackageProgress progress) Set the progress tracker

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureIndexer

public FeatureIndexer(android.content.Context context,
                      FeatureDao featureDao)

Constructor

Parameters:

context -

featureDao -

Method Detail

close

public void close()

Close the database connection in the feature indexer

Since:

1.1.0

setProgress

public void setProgress(GeoPackageProgress progress)

Set the progress tracker

Parameters:

progress -

index

public int index()

Index the feature table if needed

Returns:

count

index

public int index(boolean force)

Index the feature table

Parameters:

force - true to force re-indexing

Returns:

count

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

deleteIndex

public boolean deleteIndex()

Delete the feature table index

Returns:

true if index deleted

Since:

1.1.0

deleteIndex

public boolean deleteIndex(FeatureRow row)

Delete the index for the feature row

Parameters:

row -

Returns:

true if deleted

Since:

1.1.0

deleteIndex

public boolean deleteIndex(long geomId)

Delete the index for the geometry id

Parameters:

geomId -

Returns:

true if deleted

isIndexed

public boolean isIndexed()

Determine if the database table is indexed after database modifications

Returns:

true if indexed

getLastIndexed

public java.util.Date getLastIndexed()

Get the date last indexed

Returns:

last indexed date or null

Since:

1.1.0

query

public android.database.Cursor query()

Query for all Geometry Metadata

Returns:

geometry metadata cursor

Since:

1.1.0

count

public int count()

Query for all Geometry Metadata count

Returns:

count

Since:

1.1.0

query

public android.database.Cursor query(BoundingBox boundingBox)

Query for Geometry Metadata within the bounding box, projected correctly

Parameters:

boundingBox -

Returns:

geometry metadata cursor

Since:

1.1.0

count

public int count(BoundingBox boundingBox)

Query for Geometry Metadata count within the bounding box, projected correctly

Parameters:

boundingBox -

Returns:

count

Since:

1.1.0

query

public android.database.Cursor query(GeometryEnvelope envelope)

Query for Geometry Metadata within the Geometry Envelope

Parameters:

envelope -

Returns:

geometry metadata cursor

Since:

1.1.0

count

public int count(GeometryEnvelope envelope)

Query for Geometry Metadata count within the Geometry Envelope

Parameters:

envelope -

Returns:

count

Since:

1.1.0

query

public android.database.Cursor query(BoundingBox boundingBox,
                                     Projection projection)

Query for Geometry Metadata within the bounding box in the provided projection

Parameters:

boundingBox -

projection - projection of the provided bounding box

Returns:

geometry metadata cursor

Since:

1.1.0

count

public long count(BoundingBox boundingBox,
                  Projection projection)

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

Parameters:

boundingBox -

projection - projection of the provided bounding box

Returns:

count

Since:

1.1.0

getGeometryMetadata

public GeometryMetadata getGeometryMetadata(android.database.Cursor cursor)

Get the Geometry Metadata for the current place in the cursor

Parameters:

cursor -

Returns:

geometry metadata

Since:

1.1.0

getFeatureRow

public FeatureRow getFeatureRow(android.database.Cursor cursor)

Get the feature row for the current place in the cursor

Parameters:

cursor -

Returns:

feature row

Since:

1.1.0

getFeatureRow

public FeatureRow getFeatureRow(GeometryMetadata geometryMetadata)

Get the feature row for the Geometry Metadata

Parameters:

geometryMetadata -

Returns:

feature row

Since:

1.1.0