com.massa.mrules.optimizer

Class MConstantOptimizer

java.lang.Object

com.massa.mrules.optimizer.AbstractOptimizer

com.massa.mrules.optimizer.AbstractRecursiveOptimizer

com.massa.mrules.optimizer.MConstantOptimizer

All Implemented Interfaces:

IMOptimizer

public class MConstantOptimizer
extends AbstractRecursiveOptimizer

Optimizer which will check for presence of Addons which will always have the same result between executions, and transforms them into constant values.
Applies for IReadAccessor and ICondition.
This optimizer has no parameter.

Since:

1.5.0

Constructor Summary

Constructors

Constructor and Description
MConstantOptimizer()

Method Summary

Modifier and Type	Method and Description
protected IAddon	doAfterChildren(ICompilationContext ctxt, IAddon parent, PersistantPropertyInfo parentProp, IAddon addon) Does nothing.
protected IAddon	doBeforeChildren(ICompilationContext ctxt, IAddon parent, PersistantPropertyInfo parentProp, IAddon addon) Replaces eligible Read Accessors and conditions by constant values.

Methods inherited from class com.massa.mrules.optimizer.AbstractRecursiveOptimizer

pOptimize, pOptimizeInCollection, pOptimizeInMap, pOptimizeRecursively

Methods inherited from class com.massa.mrules.optimizer.AbstractOptimizer

getActivationPropertyName, isActivated, optimize, setActivated

Methods inherited from class java.lang.Object

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

Constructor Detail

MConstantOptimizer

public MConstantOptimizer()

Method Detail

doBeforeChildren

protected IAddon doBeforeChildren(ICompilationContext ctxt,
                                  IAddon parent,
                                  PersistantPropertyInfo parentProp,
                                  IAddon addon)
                           throws MRuleValidationException

Replaces eligible Read Accessors and conditions by constant values.

Specified by:

doBeforeChildren in class AbstractRecursiveOptimizer

Returns:

A new addon instance if the addon should be replaced in the parent. Null if not.

Throws:

MRuleValidationException

doAfterChildren

protected IAddon doAfterChildren(ICompilationContext ctxt,
                                 IAddon parent,
                                 PersistantPropertyInfo parentProp,
                                 IAddon addon)
                          throws MRuleValidationException

Does nothing.

Specified by:

doAfterChildren in class AbstractRecursiveOptimizer

Returns:

A new addon instance if the addon should be replaced in the parent. Null if not.

Throws:

MRuleValidationException