org.rvpf.processor.engine

Class AbstractTransform

Object

Proxied.Abstract

AbstractTransform

All Implemented Interfaces:

Transform, Proxied

Direct Known Subclasses:

ControlTransform, RemoteExecutorTransform, RPNTransform, SelectorTransform

public abstract class AbstractTransform
extends Proxied.Abstract
implements Transform

Abstract transform.

Nested Class Summary

Nested classes/interfaces inherited from interface Proxied

Proxied.Abstract

Field Summary

Fields inherited from interface Transform

ACTION_PARAM, CEILING_INTERVAL_PARAM, CEILING_RATIO_PARAM, FAIL_RETURNS_NULL_PARAM, FINAL_PROGRAM_PARAM, FLOOR_INTERVAL_PARAM, FLOOR_RATIO_PARAM, INITIAL_PROGRAM_PARAM, NULL_REMOVES_PARAM, PARAM_PARAM, PROGRAM_PARAM, STEP_PROGRAM_PARAM

Constructor Summary

Constructors

Constructor and Description
AbstractTransform()

Method Summary

Modifier and Type	Method and Description
protected void	addUpdate(PointValue pointValue, Batch batch) Adds an update to the point's store.
Optional<? extends Transform>	getInstance(Point point) Gets an appropriate instance of this transform for the point.
boolean	isNullRemoves(Point point) Asks if a null result should cause a removal in the store.
boolean	setUp(Metadata metadata, ProxyEntity proxyEntity) Sets up the instance for action.
boolean	setUp(Point point) Sets up this instance.
boolean	usesFetchedResult() Asks if this transform needs the fetched result value.

Methods inherited from class Proxied.Abstract

getMetadata, getName, getParams, getProxyEntity, getThisLogger, tearDown

Methods inherited from class Object

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

Methods inherited from interface Transform

applyTo

Methods inherited from interface Proxied

getName, getParams, getProxyEntity, tearDown

Constructor Detail

AbstractTransform

public AbstractTransform()

Method Detail

getInstance

public Optional<? extends Transform> getInstance(Point point)

Gets an appropriate instance of this transform for the point.

Specified by:

getInstance in interface Transform

Parameters:

point - The point.

Returns:

A transform instance or empty.

isNullRemoves

public final boolean isNullRemoves(Point point)

Asks if a null result should cause a removal in the store.

Specified by:

isNullRemoves in interface Transform

Parameters:

point - The point.

Returns:

True if a null should cause removal.

setUp

public boolean setUp(Point point)

Sets up this instance.

This is called after the set up of the points relationships.

Specified by:

setUp in interface Transform

Parameters:

point - The point for the instance.

Returns:

True on success.

setUp

public boolean setUp(Metadata metadata,
                     ProxyEntity proxyEntity)

Sets up the instance for action.

Specified by:

setUp in interface Proxied

Overrides:

setUp in class Proxied.Abstract

Parameters:

metadata - The metadata available to the current process.

proxyEntity - The proxy entity refering to the proxied.

Returns:

True on success.

usesFetchedResult

public boolean usesFetchedResult()

Asks if this transform needs the fetched result value.

Specified by:

usesFetchedResult in interface Transform

Returns:

True if the result is used.

addUpdate

protected final void addUpdate(PointValue pointValue,
                               Batch batch)

Adds an update to the point's store.

Parameters:

pointValue - The point value.

batch - The current batch context.