Package org.elasticsearch.common

Class Rounding

java.lang.Object

org.elasticsearch.common.Rounding

All Implemented Interfaces:

Writeable

public abstract class Rounding
extends Object
implements Writeable

A strategy for rounding date/time based values. There are two implementations for rounding. The first one requires a date time unit and rounds to the supplied date time unit (i.e. quarter of year, day of month) The second one allows you to specify an interval to round to

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Rounding.Builder
static class	Rounding.DateTimeUnit

Nested classes/interfaces inherited from interface org.elasticsearch.common.io.stream.Writeable

Writeable.Reader<V>, Writeable.Writer<V>

Constructor Summary

Constructors

Constructor	Description
Rounding()

Method Summary

Modifier and Type	Method	Description
static Rounding.Builder	builder(Rounding.DateTimeUnit unit)
static Rounding.Builder	builder(TimeValue interval)
abstract boolean	equals(Object obj)
abstract int	hashCode()
abstract byte	id()
abstract void	innerWriteTo(StreamOutput out)
abstract long	nextRoundingValue(long value)	Given the rounded value (which was potentially generated by round(long), returns the next rounding value.
static Rounding	read(StreamInput in)
abstract long	round(long value)	Rounds the given value.
void	writeTo(StreamOutput out)	Write this into the StreamOutput.

Methods inherited from class java.lang.Object

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

Constructor Detail

Rounding

public Rounding()

Method Detail

innerWriteTo

public abstract void innerWriteTo(StreamOutput out)
                           throws IOException

Throws:

IOException

writeTo

public void writeTo(StreamOutput out)
             throws IOException

Description copied from interface: Writeable

Write this into the StreamOutput.

Specified by:

writeTo in interface Writeable

Throws:

IOException

id

public abstract byte id()

round

public abstract long round(long value)

Rounds the given value.

nextRoundingValue

public abstract long nextRoundingValue(long value)

Given the rounded value (which was potentially generated by round(long), returns the next rounding value. For example, with interval based rounding, if the interval is 3, nextRoundValue(6) = 9 .

Parameters:

value - The current rounding value

Returns:

The next rounding value

equals

public abstract boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public abstract int hashCode()

Overrides:

hashCode in class Object

builder

public static Rounding.Builder builder(Rounding.DateTimeUnit unit)

builder

public static Rounding.Builder builder(TimeValue interval)

read

public static Rounding read(StreamInput in)
                     throws IOException

Throws:

IOException