org.sensorhub.api.persistence

Interface IFeatureStorage

public interface IFeatureStorage

Interface for feature data storage implementations. This type of storage provides spatial filtering capabilities.

Since:

Nov 6, 2010

Author:

Alex Robin

Method Summary

Methods

Modifier and Type	Method and Description
Iterator<String>	getFeatureIDs(IFeatureFilter filter) Gets IDs of features matching the given filter
Iterator<AbstractFeature>	getFeatures(IFeatureFilter filter) Gets features matching the specified filter
Bbox	getFeaturesSpatialExtent()
int	getNumFeatures()
int	getNumMatchingFeatures(IFeatureFilter filter)
void	store(AbstractFeature f) Stores a new feature object in this data store

Method Detail

getNumFeatures

int getNumFeatures()

Returns:

The total number of features in this storage

getNumMatchingFeatures

int getNumMatchingFeatures(IFeatureFilter filter)

Parameters:

filter - filtering parameters

Returns:

Number of features matching the filter

getFeaturesSpatialExtent

Bbox getFeaturesSpatialExtent()

Returns:

Bounding rectangle of all features contained in this storage

getFeatureIDs

Iterator<String> getFeatureIDs(IFeatureFilter filter)

Gets IDs of features matching the given filter

Parameters:

filter - filtering parameters

Returns:

an iterator over IDs of all matching features

getFeatures

Iterator<AbstractFeature> getFeatures(IFeatureFilter filter)

Gets features matching the specified filter

Parameters:

filter - filtering parameters

Returns:

an iterator over features matching the filter, sorted by ID

store

void store(AbstractFeature f)

Stores a new feature object in this data store

Parameters:

f - feature object