org.sensorhub.api.persistence

Interface IDataFilter

All Known Subinterfaces:

IObsFilter

All Known Implementing Classes:

DataFilter, ObsFilter

public interface IDataFilter

Basic filter interface to get time series data records from storage.
There is an implicit logical AND between all criteria.

Since:

Nov 12, 2010

Method Summary

Modifier and Type	Method and Description
java.util.Collection<java.lang.String>	getProducerIDs() Gets filter criteria for selecting data records associated to certain producers. Only data records associated to one of the listed producer IDs will be selected. If the list is null or empty, no filtering on producer ID will be applied.
java.lang.String	getRecordType()
double[]	getTimeStampRange() Gets filter criteria for selecting data records based on time stamp. Only records whose time stamp (usually sampling time for sensors) lies within that range will be selected (range is inclusive). If range is null, no filtering on time stamp will be applied.

Method Detail

getRecordType

java.lang.String getRecordType()

Returns:

the record type that needs to be retrieved (cannot be null)

getTimeStampRange

double[] getTimeStampRange()

Gets filter criteria for selecting data records based on time stamp.
Only records whose time stamp (usually sampling time for sensors) lies within that range will be selected (range is inclusive).
If range is null, no filtering on time stamp will be applied.

Returns:

Desired time stamp range

getProducerIDs

java.util.Collection<java.lang.String> getProducerIDs()

Gets filter criteria for selecting data records associated to certain producers.
Only data records associated to one of the listed producer IDs will be selected.
If the list is null or empty, no filtering on producer ID will be applied.

Returns:

List of desired producer IDs