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

Class Eq<T extends java.lang.Comparable<T>>

java.lang.Object

org.apache.iotdb.tsfile.read.filter.basic.UnaryFilter<T>

org.apache.iotdb.tsfile.read.filter.operator.Eq<T>

Type Parameters:

T - comparable data type

All Implemented Interfaces:

java.io.Serializable, Filter

Direct Known Subclasses:

TimeFilter.TimeEq, ValueFilter.ValueEq

public class Eq<T extends java.lang.Comparable<T>>
extends UnaryFilter<T>

Equals.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.iotdb.tsfile.read.filter.basic.UnaryFilter

filterType, value

Constructor Summary

Constructors

Constructor	Description
Eq()
Eq(T value, FilterType filterType)

Method Summary

Modifier and Type	Method	Description
boolean	allSatisfy(Statistics statistics)	To examine whether all data points are satisfied with the filter.
boolean	containStartEndTime(long startTime, long endTime)	To examine whether the partition [startTime, endTime] is subsets of filter.
Filter	copy()
FilterSerializeId	getSerializeId()
Filter	reverse()
boolean	satisfy(long time, java.lang.Object value)	To examine whether the single point(with time and value) is satisfied with the filter.
boolean	satisfy(Statistics statistics)	To examine whether there are data points satisfied with the filter.
boolean	satisfyStartEndTime(long startTime, long endTime)	To examine whether the min time and max time are satisfied with the filter.
java.lang.String	toString()

Methods inherited from class org.apache.iotdb.tsfile.read.filter.basic.UnaryFilter

deserialize, equals, getFilterType, getValue, hashCode, serialize, setValue

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

getTimeRanges, serialize

Constructor Detail

Eq

public Eq()

Eq

public Eq(T value,
          FilterType filterType)

Method Detail

satisfy

public boolean satisfy(Statistics statistics)

Description copied from interface: Filter

To examine whether there are data points satisfied with the filter.

Parameters:

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

allSatisfy

public boolean allSatisfy(Statistics statistics)

Description copied from interface: Filter

To examine whether all data points are satisfied with the filter.

Parameters:

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

satisfy

public boolean satisfy(long time,
                       java.lang.Object value)

Description copied from interface: Filter

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

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.

Parameters:

startTime - start time of a partition

endTime - end time of a partition

copy

public Filter copy()

toString

public java.lang.String toString()

Specified by:

toString in class UnaryFilter<T extends java.lang.Comparable<T>>

getSerializeId

public FilterSerializeId getSerializeId()

reverse

public Filter reverse()