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

Class ExpressionBasedParameterResolverValueResolver<T>

java.lang.Object

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

All Implemented Interfaces:

org.mule.runtime.api.lifecycle.Initialisable, ExpressionBasedValueResolver<org.mule.runtime.extension.api.runtime.parameter.ParameterResolver<T>>, ValueResolver<org.mule.runtime.extension.api.runtime.parameter.ParameterResolver<T>>

public class ExpressionBasedParameterResolverValueResolver<T>
extends Object
implements ExpressionBasedValueResolver<org.mule.runtime.extension.api.runtime.parameter.ParameterResolver<T>>, org.mule.runtime.api.lifecycle.Initialisable

ValueResolver implementation for ParameterResolver that are resolved from an expression

Since:

4.0

Field Summary

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

PHASE_NAME

Constructor Summary

Constructors

Constructor and Description
ExpressionBasedParameterResolverValueResolver(String expression, Class<T> type, org.mule.runtime.api.metadata.DataType expectedDataType)
ExpressionBasedParameterResolverValueResolver(String expression, Class<T> type, org.mule.runtime.api.metadata.DataType expectedDataType, boolean content)

Method Summary

Modifier and Type	Method and Description
String	getExpression()
void	initialise()
boolean	isContent()
boolean	isDynamic() Returns false if subsequent invocations to ValueResolver.resolve(ValueResolvingContext) will return the same value.
org.mule.runtime.extension.api.runtime.parameter.ParameterResolver<T>	resolve(ValueResolvingContext context) Resolves a value from the given event
void	setExtendedExpressionManager(ExtendedExpressionManager extendedExpressionManager)
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

ExpressionBasedParameterResolverValueResolver

public ExpressionBasedParameterResolverValueResolver(String expression,
                                                     Class<T> type,
                                                     org.mule.runtime.api.metadata.DataType expectedDataType)

ExpressionBasedParameterResolverValueResolver

public ExpressionBasedParameterResolverValueResolver(String expression,
                                                     Class<T> type,
                                                     org.mule.runtime.api.metadata.DataType expectedDataType,
                                                     boolean content)

Method Detail

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

resolve

public org.mule.runtime.extension.api.runtime.parameter.ParameterResolver<T> resolve(ValueResolvingContext context)
                                                                              throws org.mule.runtime.api.exception.MuleException

Resolves a value from the given event

Specified by:

resolve in interface ValueResolver<org.mule.runtime.extension.api.runtime.parameter.ParameterResolver<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()

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<org.mule.runtime.extension.api.runtime.parameter.ParameterResolver<T>>

Returns:

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

setTransformationService

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

setExtendedExpressionManager

public void setExtendedExpressionManager(ExtendedExpressionManager extendedExpressionManager)

getExpression

public String getExpression()

Specified by:

getExpression in interface ExpressionBasedValueResolver<org.mule.runtime.extension.api.runtime.parameter.ParameterResolver<T>>

Returns:

The configured expression in the ValueResolver

isContent

public boolean isContent()

Specified by:

isContent in interface ValueResolver<org.mule.runtime.extension.api.runtime.parameter.ParameterResolver<T>>

Returns:

if the value is a Content on the component with the value to be resolved.