org.sensorhub.api.persistence

Class DataFilter

java.lang.Object

org.sensorhub.api.persistence.DataFilter

All Implemented Interfaces:

IDataFilter

Direct Known Subclasses:

ObsFilter

public class DataFilter
extends java.lang.Object
implements IDataFilter

Default implementation of IDataFilter returning null on all filter predicates. It is meant be used as a base to implement your own filter and unlike IDataFilter doesn't require implementing all methods.

Since:

May 9, 2015

Constructor Summary

Constructors

Constructor and Description
DataFilter(java.lang.String recordType)

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.

Methods inherited from class java.lang.Object

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

Constructor Detail

DataFilter

public DataFilter(java.lang.String recordType)

Method Detail

getRecordType

public java.lang.String getRecordType()

Specified by:

getRecordType in interface IDataFilter

Returns:

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

getTimeStampRange

public double[] getTimeStampRange()

Description copied from interface: IDataFilter

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.

Specified by:

getTimeStampRange in interface IDataFilter

Returns:

Desired time stamp range

getProducerIDs

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

Description copied from interface: IDataFilter

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.

Specified by:

getProducerIDs in interface IDataFilter

Returns:

List of desired producer IDs