org.mule.runtime.module.extension.internal.runtime.resolver

Class TypeSafeValueResolverWrapper<T>

java.lang.Object

org.mule.runtime.module.extension.internal.runtime.resolver.TypeSafeValueResolverWrapper<T>

Type Parameters:

T -

All Implemented Interfaces:

org.mule.runtime.api.lifecycle.Initialisable, ValueResolver<T>

public class TypeSafeValueResolverWrapper<T>
extends Object
implements ValueResolver<T>, org.mule.runtime.api.lifecycle.Initialisable

ValueResolver wrapper implementation which wraps another ValueResolver and ensures that the output is always of a certain type.

If the returned value of the this#valueResolverDelegate is not of the desired type, it tries to locate a Transformer which can do the transformation from the obtained type to the expected one.

Since:

4.0

Field Summary

Fields inherited from interface org.mule.runtime.api.lifecycle.Initialisable

PHASE_NAME

Constructor Summary

Constructors

Constructor and Description
TypeSafeValueResolverWrapper(ValueResolver valueResolverDelegate, Class<T> expectedType)

Method Summary

Modifier and Type	Method and Description
void	initialise()
boolean	isDynamic() Returns false if subsequent invocations to ValueResolver.resolve(ValueResolvingContext) will return the same value.
T	resolve(ValueResolvingContext context) Resolves a value from the given event
void	setTransformationService(org.mule.runtime.api.transformation.TransformationService transformationService)

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeSafeValueResolverWrapper

public TypeSafeValueResolverWrapper(ValueResolver valueResolverDelegate,
                                    Class<T> expectedType)

Method Detail

resolve

public T resolve(ValueResolvingContext context)
          throws org.mule.runtime.api.exception.MuleException

Description copied from interface: ValueResolver

Resolves a value from the given event

Specified by:

resolve in interface ValueResolver<T>

Parameters:

context - the context for the current resolution attempt

Returns:

a resolved value

Throws:

org.mule.runtime.api.exception.MuleException - if the resolution of the value fails

isDynamic

public boolean isDynamic()

Description copied from interface: ValueResolver

Returns false if subsequent invocations to ValueResolver.resolve(ValueResolvingContext) will return the same value. Notice that if it returns true, then it might return different values per invocation but that's not guaranteed.

Specified by:

isDynamic in interface ValueResolver<T>

Returns:

whether the resolved value changes based or the resolution context or not

initialise

public void initialise()
                throws org.mule.runtime.api.lifecycle.InitialisationException

Specified by:

initialise in interface org.mule.runtime.api.lifecycle.Initialisable

Throws:

org.mule.runtime.api.lifecycle.InitialisationException

setTransformationService

public void setTransformationService(org.mule.runtime.api.transformation.TransformationService transformationService)