com.massa.mrules.condition

Class AbstractCondition

java.lang.Object

com.massa.mrules.base.AbstractMRulesObject

com.massa.mrules.addon.AbstractAddon

com.massa.mrules.condition.AbstractCondition

All Implemented Interfaces:

IAddon, IMRulesObject, ICondition, Outable, Serializable, Cloneable

Direct Known Subclasses:

AbstractAccessorWrapperCondition, MConditionNot, MConditionSet, MEvaluationCondition, MHardCodedCondition

public abstract class AbstractCondition
extends AbstractAddon
implements ICondition

Abstraction Layer for conditions.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AbstractCondition()

Method Summary

Modifier and Type	Method and Description
AbstractCondition	clone() Clones the Addon.
ICondition	combine(ILogicalOperator operator, ICondition condition) Combines using MConditionSet.
protected ICondition	combineToNewSet(ILogicalOperator operator, ICondition condition) Combines using a newly created MConditionSet.
boolean	equals(Object o) Tests the "not" flag only. pEquals must be overridden to test other parameters.
boolean	evaluate(IExecutionContext ctxt) This method handles in / out logging and redirects to pEvaluate(IExecutionContext) for specific implementation.
int	hashCode() Computes hashCode on the "not" flag only. pEquals must be overridden to test other parameters.
protected abstract ConditionEquivalence	internalIsEquivalent(ICondition o) Called by internalIsEquivalent(ICondition) if the other condition is not an instance of MConditionNot.
ConditionEquivalence	isEquivalent(ICondition o) Handles the facts that provided condition is null or an instance of MConditionNot.
boolean	isNot() Allows to invert condition's behavior.
boolean	isShouldBeWrappedToConstantValue() Default implementation returns ICondition.isConstantValue().
protected abstract boolean	pEquals(AbstractCondition o) Tests equality on other parameters than "not".
protected abstract boolean	pEvaluate(IExecutionContext ctxt)
protected abstract int	pHashCode() Computes hashCode on other parameters than "not".
protected abstract void	pToString(OuterWithLevel outer) Finishes toString output.
void	setNot(boolean not) Allows to invert condition's behavior.
void	toString(OuterWithLevel outer) Encapsulates output with parenthesis and not flag.

Methods inherited from class com.massa.mrules.addon.AbstractAddon

getInternalCacheIdentifier, isCacheUsed, isInternalCacheIdentifierNeeded, optimize, resetCachedData, setInternalCacheIdentifier, toString, wasRegistered

Methods inherited from class com.massa.mrules.base.AbstractMRulesObject

getDebugInfo, getDescription, getName, setDebugInfo, setDescription, setName

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.massa.mrules.condition.ICondition

compile, getEstimatedCost, isConstantValue

Methods inherited from interface com.massa.mrules.addon.IAddon

getImplementationId, getInternalCacheIdentifier, isCacheUsed, isInternalCacheIdentifierNeeded, optimize, resetCachedData, setInternalCacheIdentifier, wasRegistered

Methods inherited from interface com.massa.mrules.base.IMRulesObject

getDebugInfo, getDescription, getName, setDebugInfo, setDescription, setName

Constructor Detail

AbstractCondition

public AbstractCondition()

Method Detail

evaluate

public boolean evaluate(IExecutionContext ctxt)
                 throws MConditionEvaluationException

This method handles in / out logging and redirects to pEvaluate(IExecutionContext) for specific implementation.

Specified by:

evaluate in interface ICondition

Throws:

MConditionEvaluationException

pEvaluate

protected abstract boolean pEvaluate(IExecutionContext ctxt)
                              throws MConditionEvaluationException

Throws:

MConditionEvaluationException

clone

public AbstractCondition clone()

Description copied from interface: IAddon

Clones the Addon.
The general contract is that the clone of a compiled Addon is still compiled.

Specified by:

clone in interface IAddon

Specified by:

clone in interface IMRulesObject

Specified by:

clone in interface ICondition

Overrides:

clone in class AbstractAddon

isShouldBeWrappedToConstantValue

public boolean isShouldBeWrappedToConstantValue()

Default implementation returns ICondition.isConstantValue().

Specified by:

isShouldBeWrappedToConstantValue in interface ICondition

isEquivalent

public ConditionEquivalence isEquivalent(ICondition o)

Handles the facts that provided condition is null or an instance of MConditionNot. Otherwise returns null.
.

Specified by:

isEquivalent in interface ICondition

internalIsEquivalent

protected abstract ConditionEquivalence internalIsEquivalent(ICondition o)

Called by internalIsEquivalent(ICondition) if the other condition is not an instance of MConditionNot.

toString

public final void toString(OuterWithLevel outer)
                    throws IOException

Encapsulates output with parenthesis and not flag.

Specified by:

toString in interface Outable

Throws:

IOException

Since:

1.5.0

pToString

protected abstract void pToString(OuterWithLevel outer)
                           throws IOException

Finishes toString output.

Throws:

IOException

Since:

1.5.0

equals

public final boolean equals(Object o)

Tests the "not" flag only. pEquals must be overridden to test other parameters.

Overrides:

equals in class Object

pEquals

protected abstract boolean pEquals(AbstractCondition o)

Tests equality on other parameters than "not".

hashCode

public final int hashCode()

Computes hashCode on the "not" flag only. pEquals must be overridden to test other parameters.

Overrides:

hashCode in class Object

pHashCode

protected abstract int pHashCode()

Computes hashCode on other parameters than "not".

isNot

public boolean isNot()

Allows to invert condition's behavior.

Specified by:

isNot in interface ICondition

Since:

1.5.0 - Added to all conditions in order to allow a more efficient optimization process.

setNot

public void setNot(boolean not)

Allows to invert condition's behavior.

Specified by:

setNot in interface ICondition

Since:

1.5.0 - Added to all conditions in order to allow a more efficient optimization process.

combine

public ICondition combine(ILogicalOperator operator,
                          ICondition condition)

Combines using MConditionSet.
If one of the condition to combine already is a condition set, it might be reused depending on the operator.

Specified by:

combine in interface ICondition

Parameters:

operator - Operator to use to combine the results.

condition - Condition to combine with

Returns:

The combining condition.

combineToNewSet

protected ICondition combineToNewSet(ILogicalOperator operator,
                                     ICondition condition)

Combines using a newly created MConditionSet.