org.sensorhub.impl.service.sos

Interface ISOSDataProvider

All Known Implementing Classes:

SensorDataProvider, StorageDataProvider, StreamDataProvider, StreamProcessDataProvider

public interface ISOSDataProvider

Interface to be implemented for providing data to the SOS engine. One data provider is mapped for each SOS offering.

Author:

Alex Robin

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Properly releases all resources accessed by provider (for instance, when connection is ended by client)
DataEncoding	getDefaultResultEncoding() Requests provider to specify the preferred encoding for the underlying data, given the current config and filter
IObservation	getNextObservation() Requests provider to generate the next observation from the underlying data, given the current config and filter
DataBlock	getNextResultRecord() Requests provider to generate the next CDM record from the underlying data, given the current config and filter
DataComponent	getResultStructure() Requests provider to provide the result structure corresponding to the current config and filter

Method Detail

getNextObservation

IObservation getNextObservation()
                                throws Exception

Requests provider to generate the next observation from the underlying data, given the current config and filter

Returns:

observation instance

Throws:

Exception

getNextResultRecord

DataBlock getNextResultRecord()
                              throws Exception

Requests provider to generate the next CDM record from the underlying data, given the current config and filter

Returns:

data block

Throws:

Exception

getResultStructure

DataComponent getResultStructure()
                                 throws Exception

Requests provider to provide the result structure corresponding to the current config and filter

Returns:

data component

Throws:

Exception

getDefaultResultEncoding

DataEncoding getDefaultResultEncoding()
                                      throws Exception

Requests provider to specify the preferred encoding for the underlying data, given the current config and filter

Returns:

encoding instance

Throws:

Exception

close

void close()

Properly releases all resources accessed by provider (for instance, when connection is ended by client)