com.massa.mrules.accessor

Class MAvailableAccessor

java.lang.Object

com.massa.mrules.base.AbstractMRulesObject

com.massa.mrules.addon.AbstractAddon

com.massa.mrules.accessor.AbstractReadAccessor

com.massa.mrules.accessor.AbstractPropertyCheckAccessor

com.massa.mrules.accessor.MAvailableAccessor

All Implemented Interfaces:

IAccessor, IReadAccessor, IAddon, IMRulesObject, Outable, Serializable, Cloneable

public class MAvailableAccessor
extends AbstractPropertyCheckAccessor

Allows to check if a property is available, at runtime.
Availability is tested for read or write. If available, the accessor returns true, if not false.
Mostly, the usage will be as a Condition (with automatic encapsulation via MAccessorWrapperCondition.
The objective is to allow different instance of a Class hierarchy to be accepted by the rule engine, conditioning some rules with the availability of some data.
Please note that if all properties are not available at compilation time, the compilation level must be LIGHT. A warning will be emitted here if the compilation level is STANDARD, knowing that if the process does not fail, this warning may be ignored.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.massa.mrules.accessor.IReadAccessor

IReadAccessor.Standalone

Field Summary

Fields

Modifier and Type	Field and Description
static String	AVAILABLE_ID

Constructor Summary

Constructors

Constructor and Description
MAvailableAccessor()
MAvailableAccessor(String property)

Method Summary

Modifier and Type	Method and Description
MAvailableAccessor	clone() Clones the Addon.
String	getImplementationId() Unique addon implementation ID.
protected void	internalCompileValue(ICompilationContext ctxt, IProperty2 compiledProperty) Final compilation steps should be implemented here.
protected Boolean	internalGet(IExecutionContext ctxt, IProperty2 compiledProperty) The final implementation should check the property here.
boolean	isCacheUsed() Returns false by default.

Methods inherited from class com.massa.mrules.accessor.AbstractPropertyCheckAccessor

compileCollection, compileValue, equals, getEstimatedReadCost, getGenericCollectionType, getProperty, getType, hashCode, internalGet, isShouldIterate, setProperty, toString

Methods inherited from class com.massa.mrules.accessor.AbstractReadAccessor

castToExpected, compileRead, compileRead, compileRead, compileRead, get, getGenericTypes, isConstantValue, isShouldBeWrappedToConstantValue, isShouldNotCache

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

getInternalCacheIdentifier, 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.addon.IAddon

getInternalCacheIdentifier, isInternalCacheIdentifierNeeded, optimize, resetCachedData, setInternalCacheIdentifier, wasRegistered

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

getDebugInfo, getDescription, getName, setDebugInfo, setDescription, setName

Field Detail

AVAILABLE_ID

public static final String AVAILABLE_ID

See Also:

Constant Field Values

Constructor Detail

MAvailableAccessor

public MAvailableAccessor()

MAvailableAccessor

public MAvailableAccessor(String property)

Method Detail

internalCompileValue

protected void internalCompileValue(ICompilationContext ctxt,
                                    IProperty2 compiledProperty)
                             throws MRuleValidationException,
                                    UtilsException

Description copied from class: AbstractPropertyCheckAccessor

Final compilation steps should be implemented here.

Specified by:

internalCompileValue in class AbstractPropertyCheckAccessor

Throws:

MRuleValidationException

UtilsException

internalGet

protected Boolean internalGet(IExecutionContext ctxt,
                              IProperty2 compiledProperty)
                       throws MAccessorException,
                              UtilsException

Description copied from class: AbstractPropertyCheckAccessor

The final implementation should check the property here.

Specified by:

internalGet in class AbstractPropertyCheckAccessor

Throws:

MAccessorException

UtilsException

getImplementationId

public String getImplementationId()

Description copied from interface: IAddon

Unique addon implementation ID. In case of conflict, an Class Initialization error will be raised.

clone

public MAvailableAccessor 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 IAccessor

Specified by:

clone in interface IReadAccessor

Specified by:

clone in interface IAddon

Specified by:

clone in interface IMRulesObject

Overrides:

clone in class AbstractPropertyCheckAccessor

isCacheUsed

public boolean isCacheUsed()

Description copied from class: AbstractAddon

Returns false by default.

Specified by:

isCacheUsed in interface IAddon

Overrides:

isCacheUsed in class AbstractAddon