Package org.apache.iotdb.tsfile.read.filter

Class GroupByMonthFilter

java.lang.Object

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

org.apache.iotdb.tsfile.read.filter.GroupByMonthFilter

All Implemented Interfaces:

Serializable, Filter

public class GroupByMonthFilter
extends GroupByFilter

GroupByMonthFilter is used to handle natural month slidingStep and interval by generating dynamically. Attention: it's only supported to access in ascending order now.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.iotdb.tsfile.read.filter.GroupByFilter

endTime, interval, slidingStep, startTime

Constructor Summary

Constructors

Constructor	Description
GroupByMonthFilter()
GroupByMonthFilter(GroupByMonthFilter filter)
GroupByMonthFilter(TimeDuration interval, TimeDuration slidingStep, long startTime, long endTime, TimeZone timeZone, TimeUnit currPrecision)

Method Summary

Modifier and Type	Method	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)
FilterSerializeId	getSerializeId()
int	hashCode()
boolean	satisfy(long time, Object value)	To examine whether the single point(with time and value) 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)

Methods inherited from class org.apache.iotdb.tsfile.read.filter.GroupByFilter

allSatisfy, getEndTime, getStartTime, getTimeRanges, reverse, satisfy, 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

Constructor Detail

GroupByMonthFilter

public GroupByMonthFilter()

GroupByMonthFilter

public GroupByMonthFilter(TimeDuration interval,
                          TimeDuration slidingStep,
                          long startTime,
                          long endTime,
                          TimeZone timeZone,
                          TimeUnit currPrecision)

GroupByMonthFilter

public GroupByMonthFilter(GroupByMonthFilter filter)

Method Detail

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

Overrides:

satisfy in class GroupByFilter

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

Overrides:

satisfyStartEndTime in class GroupByFilter

Parameters:

startTime - start time of a page, series or device

endTime - end time of a page, series or device

copy

public Filter copy()

Specified by:

copy in interface Filter

Overrides:

copy in class GroupByFilter

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

Overrides:

containStartEndTime in class GroupByFilter

Parameters:

startTime - start time of a partition

endTime - end time of a partition

serialize

public void serialize(DataOutputStream outputStream)

Specified by:

serialize in interface Filter

Overrides:

serialize in class GroupByFilter

deserialize

public void deserialize(ByteBuffer buffer)

Specified by:

deserialize in interface Filter

Overrides:

deserialize in class GroupByFilter

equals

public boolean equals(Object obj)

Overrides:

equals in class GroupByFilter

hashCode

public int hashCode()

Overrides:

hashCode in class GroupByFilter

getSerializeId

public FilterSerializeId getSerializeId()

Specified by:

getSerializeId in interface Filter

Overrides:

getSerializeId in class GroupByFilter