org.apache.iotdb.tsfile.read.filter

Class GroupByFilter

java.lang.Object

org.apache.iotdb.tsfile.read.filter.GroupByFilter

All Implemented Interfaces:

Serializable, Filter

Direct Known Subclasses:

GroupByMonthFilter

public class GroupByFilter
extends Object
implements Filter, Serializable

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected long	endTime
protected long	interval
protected long	slidingStep
protected long	startTime

Constructor Summary

Constructors

Constructor and Description
GroupByFilter()
GroupByFilter(long interval, long slidingStep, long startTime, long endTime)

Method Summary

Modifier and Type	Method and Description
boolean	containStartEndTime(long startTime, long endTime) To examine whether the partition [startTime, endTime] is subsets of filter.
Filter	copy()
void	deserialize(ByteBuffer buffer)
boolean	equals(Object obj)
long	getEndTime()
FilterSerializeId	getSerializeId()
long	getStartTime()
int	hashCode()
boolean	satisfy(long time, Object value) To examine whether the single point(with time and value) is satisfied with the filter.
boolean	satisfy(Statistics statistics) To examine whether the statistics is satisfied with the filter.
boolean	satisfyStartEndTime(long startTime, long endTime) To examine whether the min time and max time are satisfied with the filter.
void	serialize(DataOutputStream outputStream)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.iotdb.tsfile.read.filter.basic.Filter

serialize

Field Detail

interval

protected long interval

slidingStep

protected long slidingStep

startTime

protected long startTime

endTime

protected long endTime

Constructor Detail

GroupByFilter

public GroupByFilter(long interval,
                     long slidingStep,
                     long startTime,
                     long endTime)

GroupByFilter

public GroupByFilter()

Method Detail

satisfy

public boolean satisfy(Statistics statistics)

Description copied from interface: Filter

To examine whether the statistics is satisfied with the filter.

Specified by:

satisfy in interface Filter

Parameters:

statistics - statistics with min time, max time, min value, max value.

satisfy

public boolean satisfy(long time,
                       Object value)

Description copied from interface: Filter

To examine whether the single point(with time and value) is satisfied with the filter.

Specified by:

satisfy in interface Filter

Parameters:

time - single point time

value - single point value

satisfyStartEndTime

public boolean satisfyStartEndTime(long startTime,
                                   long endTime)

Description copied from interface: Filter

To examine whether the min time and max time are satisfied with the filter.

Specified by:

satisfyStartEndTime in interface Filter

Parameters:

startTime - start time of a page, series or device

endTime - end time of a page, series or device

containStartEndTime

public boolean containStartEndTime(long startTime,
                                   long endTime)

Description copied from interface: Filter

To examine whether the partition [startTime, endTime] is subsets of filter.

Specified by:

containStartEndTime in interface Filter

Parameters:

startTime - start time of a partition

endTime - end time of a partition

copy

public Filter copy()

Specified by:

copy in interface Filter

toString

public String toString()

Overrides:

toString in class Object

serialize

public void serialize(DataOutputStream outputStream)

Specified by:

serialize in interface Filter

deserialize

public void deserialize(ByteBuffer buffer)

Specified by:

deserialize in interface Filter

getSerializeId

public FilterSerializeId getSerializeId()

Specified by:

getSerializeId in interface Filter

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getStartTime

public long getStartTime()

getEndTime

public long getEndTime()