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

Class RequiredParameterValueResolverWrapper<T>

java.lang.Object

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

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

Type Parameters:

T - the generic type of the resolved values

All Implemented Interfaces:

org.mule.runtime.api.lifecycle.Disposable, org.mule.runtime.api.lifecycle.Initialisable, org.mule.runtime.api.lifecycle.Lifecycle, org.mule.runtime.api.lifecycle.Startable, org.mule.runtime.api.lifecycle.Stoppable, ValueResolver<T>

public class RequiredParameterValueResolverWrapper<T>
extends LifecycleAwareValueResolverWrapper<T>

An LifecycleAwareValueResolverWrapper which throws an IllegalArgumentException if the resolved value is null.

This wrapper is intended to be used on parameters which have been assigned to an expression, but we want to prevent that expression from evaluating to null

Since:

4.0

Field Summary

Fields inherited from class org.mule.runtime.module.extension.internal.runtime.resolver.LifecycleAwareValueResolverWrapper

delegate, muleContext

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

PHASE_NAME

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

PHASE_NAME

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

PHASE_NAME

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

PHASE_NAME

Constructor Summary

Constructors

Constructor and Description
RequiredParameterValueResolverWrapper(ValueResolver<T> delegate, String parameterName) Creates a new instance
RequiredParameterValueResolverWrapper(ValueResolver<T> delegate, String parameterName, String literalValue) Creates a new instance

Method Summary

Modifier and Type	Method and Description
T	resolve(ValueResolvingContext context) Resolves a value from the given event

Methods inherited from class org.mule.runtime.module.extension.internal.runtime.resolver.LifecycleAwareValueResolverWrapper

dispose, initialise, isDynamic, start, stop

Methods inherited from class java.lang.Object

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

Constructor Detail

RequiredParameterValueResolverWrapper

public RequiredParameterValueResolverWrapper(ValueResolver<T> delegate,
                                             String parameterName,
                                             String literalValue)

Creates a new instance

Parameters:

delegate - the wrapped ValueResolver

parameterName - the name of the parameter this resolver is associated to

literalValue - the evaluated expression

RequiredParameterValueResolverWrapper

public RequiredParameterValueResolverWrapper(ValueResolver<T> delegate,
                                             String parameterName)

Creates a new instance

Parameters:

delegate - the wrapped ValueResolver

parameterName - the name of the parameter this resolver is associated to

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>

Overrides:

resolve in class LifecycleAwareValueResolverWrapper<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