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

Class ExpressionValueResolver<T>

java.lang.Object

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

Type Parameters:

T -

All Implemented Interfaces:

ValueResolver<T>

Direct Known Subclasses:

ExpressionTypedValueValueResolver

public class ExpressionValueResolver<T>
extends Object
implements ValueResolver<T>

A ValueResolver which evaluates a MEL expressions

It resolves the expressions by making use of the AttributeEvaluator so that it's compatible with simple expressions and templates alike

Since:

4.0

Constructor Summary

Constructors

Constructor and Description
ExpressionValueResolver(String expression)

Method Summary

Modifier and Type	Method and Description
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

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionValueResolver

public ExpressionValueResolver(String expression)

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:

true