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

Class ResolverSet

java.lang.Object

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

All Implemented Interfaces:

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

Direct Known Subclasses:

HashedResolverSet

public class ResolverSet
extends Object
implements ValueResolver<ResolverSetResult>, org.mule.runtime.api.lifecycle.Initialisable

A ValueResolver which is based on associating a set of keys -> ValueResolver pairs. The result of evaluating this resolver is a ResolverSetResult.

The general purpose of this class is to repeatedly evaluate a set of ValueResolvers which results are to be used in the construction of an object, so that the structure of such can be described only once (by the set of keys and ValueResolvers but evaluated many times. With this goal in mind is that the return value of this resolver will always be a ResolverSetResult which then can be used by a ObjectBuilder to generate an actual object.

Instances of this class are to be considered thread safe and reusable

Since:

3.7.0

Field Summary

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

PHASE_NAME

Constructor Summary

Constructors

Constructor and Description
ResolverSet(MuleContext muleContext)

Method Summary

Modifier and Type	Method and Description
ResolverSet	add(String key, ValueResolver resolver) Links the given ValueResolver to the given identifying key.
ResolverSet	addAll(Map<String,ValueResolver<?>> resolvers) Links all the given ValueResolvers to the given identifying key.
Map<String,ValueResolver<?>>	getResolvers()
void	initialise()
boolean	isDynamic() Whether at least one of the given ValueResolver are dynamic
ResolverSet	merge(ResolverSet resolverSet) Creates a new instance of ResolverSet containing all the resolvers of both this ResolverSet and the given resolverSet
ResolverSetResult	resolve(ValueResolvingContext context) Evaluates all the added ValueResolvers and returns the results into a ResolverSetResult

Methods inherited from class java.lang.Object

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

Constructor Detail

ResolverSet

public ResolverSet(MuleContext muleContext)

Method Detail

add

public ResolverSet add(String key,
                       ValueResolver resolver)

Links the given ValueResolver to the given identifying key.

Parameters:

key - a non-blank key

resolver - a not null ValueResolver

Returns:

this resolver set to allow chaining

Throws:

IllegalStateException - if the key was already associated to a resolver

IllegalArgumentException - if either key is empty or resolver is null

addAll

public ResolverSet addAll(Map<String,ValueResolver<?>> resolvers)

Links all the given ValueResolvers to the given identifying key.

Parameters:

resolvers - a not null Map of key-ValueResolver

Returns:

this resolver set to allow chaining

Throws:

IllegalStateException - if any of the keys were already associated to a resolver

IllegalArgumentException - if either key is empty or resolver is null, on any of the entries.

See Also:

add(String, ValueResolver)

isDynamic

public boolean isDynamic()

Whether at least one of the given ValueResolver are dynamic

Specified by:

isDynamic in interface ValueResolver<ResolverSetResult>

Returns:

true if at least one resolver is dynamic. false otherwise

resolve

public ResolverSetResult resolve(ValueResolvingContext context)
                          throws org.mule.runtime.api.exception.MuleException

Evaluates all the added ValueResolvers and returns the results into a ResolverSetResult

Specified by:

resolve in interface ValueResolver<ResolverSetResult>

Parameters:

context - a not null ValueResolvingContext

Returns:

a ResolverSetResult

Throws:

org.mule.runtime.api.exception.MuleException - if an error occurs creating the ResolverSetResult

merge

public ResolverSet merge(ResolverSet resolverSet)

Creates a new instance of ResolverSet containing all the resolvers of both this ResolverSet and the given resolverSet

Parameters:

resolverSet - a ResolverSet to merge with this ResolverSet

Returns:

a new instance of ResolverSet containing all the resolvers.

Throws:

IllegalStateException - if a duplicated key is found during the merge

IllegalArgumentException - if the given resolverSet is null

getResolvers

public Map<String,ValueResolver<?>> getResolvers()

initialise

public void initialise()

Specified by:

initialise in interface org.mule.runtime.api.lifecycle.Initialisable