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

Class RegistryLookupValueResolver<T>

java.lang.Object

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

All Implemented Interfaces:

ValueResolver<T>

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

Implementation of ValueResolver which accesses the mule registry and returns the value associated with key.

Because the registry is mutable, isDynamic() will always return true even though the odds are that the same value will always be returned. In case you want to prevent accessing the registry every time (this requires some confidence on your end about the registry value not changing) you could use this resolver in conjunction with CachingValueResolverWrapper

The registry is accessed through the MuleContext that is exposed in the MuleEvent that is passed to the resolve(MuleEvent) method

Since:

3.7.0

Constructor Summary

Constructors

Constructor and Description
RegistryLookupValueResolver(String key) Construct a new instance and set the key that will be used to access the registry

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isDynamic() returns false if subsequent invocations to ValueResolver.resolve(MuleEvent) will return the same value.
T	resolve(MuleEvent event) Returns the registry value associated with key

Methods inherited from class java.lang.Object

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

Constructor Detail

RegistryLookupValueResolver

public RegistryLookupValueResolver(String key)

Construct a new instance and set the key that will be used to access the registry

Parameters:

key - a not blank String

Method Detail

resolve

public T resolve(MuleEvent event)
          throws MuleException

Returns the registry value associated with key

Specified by:

resolve in interface ValueResolver<T>

Parameters:

event - a MuleEvent

Returns:

the registry value associated with key

Throws:

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(MuleEvent) 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: