org.rvpf.store.server.polator

Class LevelPolator

Object

Polator.Abstract

LevelPolator

All Implemented Interfaces:

Polator

public final class LevelPolator
extends Polator.Abstract

Level polator.

Nested Class Summary

Nested classes/interfaces inherited from interface Polator

Polator.Abstract

Constructor Summary

Constructors

Constructor and Description
LevelPolator()

Method Summary

Modifier and Type	Method and Description
protected PointValue	extrapolate(StoreValuesQuery polatedQuery, DateTime stamp, PointValue[] pointValuesBefore) Extrapolates a value.
protected int	extrapolationNeedsBefore() Returns the number of values extrapolation needs before.
protected PointValue	interpolate(StoreValuesQuery polatedQuery, DateTime stamp, PointValue[] pointValuesBefore, PointValue[] pointValuesAfter) Interpolates a value.
protected int	interpolationNeedsAfter() Returns the number of values interpolation needs after.
protected int	interpolationNeedsBefore() Returns the number of values interpolation needs before.

Methods inherited from class Polator.Abstract

decode, polate

Methods inherited from class Object

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

Constructor Detail

LevelPolator

public LevelPolator()

Method Detail

extrapolate

protected PointValue extrapolate(StoreValuesQuery polatedQuery,
                                 DateTime stamp,
                                 PointValue[] pointValuesBefore)

Extrapolates a value.

Specified by:

extrapolate in class Polator.Abstract

Parameters:

polatedQuery - The polated query.

stamp - The stamp for the synthesized value.

pointValuesBefore - The needed point values before.

Returns:

The point value.

extrapolationNeedsBefore

protected int extrapolationNeedsBefore()

Returns the number of values extrapolation needs before.

Specified by:

extrapolationNeedsBefore in class Polator.Abstract

Returns:

The number of values extrapolation needs before.

interpolate

protected PointValue interpolate(StoreValuesQuery polatedQuery,
                                 DateTime stamp,
                                 PointValue[] pointValuesBefore,
                                 PointValue[] pointValuesAfter)

Interpolates a value.

Specified by:

interpolate in class Polator.Abstract

Parameters:

polatedQuery - The polated query.

stamp - The stamp for the synthesized value.

pointValuesBefore - The needed point values before.

pointValuesAfter - The needed point values after.

Returns:

The point value.

interpolationNeedsAfter

protected int interpolationNeedsAfter()

Returns the number of values interpolation needs after.

Specified by:

interpolationNeedsAfter in class Polator.Abstract

Returns:

The number of values interpolation needs after.

interpolationNeedsBefore

protected int interpolationNeedsBefore()

Returns the number of values interpolation needs before.

Specified by:

interpolationNeedsBefore in class Polator.Abstract

Returns:

The number of values interpolation needs before.