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

Class ConfigOverrideValueResolverWrapper<T>

java.lang.Object

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

Type Parameters:

T - the generic type of the produced values.

All Implemented Interfaces:

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

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

A ValueResolver wrapper which defaults to obtaining the value from the current ConfigurationInstance if the given delegate results in a null value.

Since:

4.0

Field Summary

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

PHASE_NAME

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.
static <T> ValueResolver<T>	of(ValueResolver<T> delegate, String parameterName, MuleContext muleContext) Creates a new instance
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

Method Detail

of

public static <T> ValueResolver<T> of(ValueResolver<T> delegate,
                                      String parameterName,
                                      MuleContext muleContext)

Creates a new instance

Type Parameters:

T - the generic type of the produced values.

Parameters:

delegate - the delegate used to obtain a value in the first place. Only if this delegate returns a null value will the resolution using a config will be attempted.

Returns:

a new instance of ConfigOverrideValueResolverWrapper

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