com.massa.mrules.accessor

Class MCastAccessor

java.lang.Object

com.massa.mrules.base.AbstractMRulesObject

com.massa.mrules.addon.AbstractAddon

com.massa.mrules.accessor.AbstractReadAccessor

com.massa.mrules.accessor.AbstractReadSourceAccessor

com.massa.mrules.accessor.MCastAccessor

All Implemented Interfaces:

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

@PersistantProperty(property="targetType") @PersistantProperty(property="targetGenericType")
public class MCastAccessor
extends AbstractReadSourceAccessor

Class that allows to perform a specified class, overriding any automatic transformation requested during compilation process.
The source might be iterable, in which case the result will be too.
This accessor also handles casting all members of a Collection, in which case it will return a new Collection instance.

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	CAST_ID

Fields inherited from class com.massa.mrules.accessor.AbstractReadSourceAccessor

internalExpectedGenericType, internalExpectedType, source

Constructor Summary

Constructors

Constructor and Description
MCastAccessor()
MCastAccessor(IReadAccessor source)
MCastAccessor(IReadAccessor source, Class<?> targetType)
MCastAccessor(IReadAccessor source, Class<?> targetType, Class<?> targetGenericType)

Method Summary

Modifier and Type	Method and Description
MCastAccessor	clone() Clones the Addon.
<G,C extends Collection<G>> void	compileCollection(ICompilationContext ctxt, Class<C> expectedType, Class<G> expectedGenericType) Implementation to handle case when expected result is a Collection.
void	compileValue(ICompilationContext ctxt, Class<?> expectedType) Implementation to handle case when expected result is a single value.
boolean	equals(Object o)
String	getImplementationId() Unique addon implementation ID.
Class<?>	getTargetGenericType()
Class<?>	getTargetType()
int	hashCode()
protected boolean	parseCollections() Always false.
void	setTargetGenericType(Class<?> targetGenericType)
void	setTargetType(Class<?> targetType)
Object	specificHandleValue(IExecutionContext ctxt, Object value) Override this to apply specific transformation on value read from source accessor.
void	toString(OuterWithLevel outer) Method used to send String representation of the current object to the OuterWithLevel.

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

getEstimatedReadCost, getGenericCollectionType, getInternalCacheIdentifier, getSource, getType, handleValue, internalGet, isCacheUsed, isConstantValue, isInternalCacheIdentifierNeeded, isShouldIterate, resetCachedData, setInternalCacheIdentifier, setSource, wasRegistered

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

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

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

optimize, toString

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

optimize

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

getDebugInfo, getDescription, getName, setDebugInfo, setDescription, setName

Field Detail

CAST_ID

public static final String CAST_ID

See Also:

Constant Field Values

Constructor Detail

MCastAccessor

public MCastAccessor()

MCastAccessor

public MCastAccessor(IReadAccessor source)

MCastAccessor

public MCastAccessor(IReadAccessor source,
                     Class<?> targetType)

MCastAccessor

public MCastAccessor(IReadAccessor source,
                     Class<?> targetType,
                     Class<?> targetGenericType)

Method Detail

compileValue

public void compileValue(ICompilationContext ctxt,
                         Class<?> expectedType)
                  throws MRuleValidationException

Description copied from class: AbstractReadAccessor

Implementation to handle case when expected result is a single value.

Specified by:

compileValue in class AbstractReadAccessor

Throws:

MRuleValidationException

compileCollection

public <G,C extends Collection<G>> void compileCollection(ICompilationContext ctxt,
                                                          Class<C> expectedType,
                                                          Class<G> expectedGenericType)
                                                   throws MRuleValidationException

Description copied from class: AbstractReadAccessor

Implementation to handle case when expected result is a Collection.

Specified by:

compileCollection in class AbstractReadAccessor

Throws:

MRuleValidationException

parseCollections

protected boolean parseCollections()

Always false.

Specified by:

parseCollections in class AbstractReadSourceAccessor

specificHandleValue

public Object specificHandleValue(IExecutionContext ctxt,
                                  Object value)
                           throws MAccessorException

Description copied from class: AbstractReadSourceAccessor

Override this to apply specific transformation on value read from source accessor.

Specified by:

specificHandleValue in class AbstractReadSourceAccessor

Throws:

MAccessorException

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 MCastAccessor 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 AbstractReadSourceAccessor

equals

public boolean equals(Object o)

Overrides:

equals in class AbstractReadSourceAccessor

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractReadSourceAccessor

toString

public void toString(OuterWithLevel outer)
              throws IOException

Description copied from interface: Outable

Method used to send String representation of the current object to the OuterWithLevel.

Specified by:

toString in interface Outable

Overrides:

toString in class AbstractReadSourceAccessor

Throws:

IOException

getTargetType

public Class<?> getTargetType()

setTargetType

public void setTargetType(Class<?> targetType)

getTargetGenericType

public Class<?> getTargetGenericType()

setTargetGenericType

public void setTargetGenericType(Class<?> targetGenericType)