Package org.axonframework.messaging.core.annotation

Class MultiParameterResolverFactory

java.lang.Object
org.axonframework.messaging.core.annotation.MultiParameterResolverFactory
All Implemented Interfaces:
ParameterResolverFactory
public class MultiParameterResolverFactory extends Object implements ParameterResolverFactory
ParameterResolverFactory instance that delegates to multiple other instances, in the order provided.
Since:
2.1.0
Author:
Allard Buijze

  • Constructor Details

    • MultiParameterResolverFactory

      public MultiParameterResolverFactory(ParameterResolverFactory... delegates)
      Initializes an instance that delegates to the given delegates, in the order provided. Changes in the given array are not reflected in the created instance.
      Parameters:
      delegates - The factories providing the parameter values to use

    • MultiParameterResolverFactory

      public MultiParameterResolverFactory(List<ParameterResolverFactory> delegates)
      Initializes an instance that delegates to the given delegates, in the order provided. Changes in the given List are not reflected in the created instance.
      Parameters:
      delegates - The list of factories providing the parameter values to use

  • Method Details

    • ordered

      public static MultiParameterResolverFactory ordered(ParameterResolverFactory... delegates)
      Creates a MultiParameterResolverFactory instance with the given delegates, which are automatically ordered based on the @Priority annotation on their respective classes. Classes with the same Priority are kept in the order as provided in the delegates.

      If one of the delegates is a MultiParameterResolverFactory itself, that factory's delegates are 'mixed' with the given delegates, based on their respective order.

      Parameters:
      delegates - The delegates to include in the factory
      Returns:
      an instance delegating to the given delegates

    • ordered

      public static MultiParameterResolverFactory ordered(List<ParameterResolverFactory> delegates)
      Creates a MultiParameterResolverFactory instance with the given delegates, which are automatically ordered based on the @Priority annotation on their respective classes. Classes with the same Priority are kept in the order as provided in the delegates.

      If one of the delegates is a MultiParameterResolverFactory itself, that factory's delegates are 'mixed' with the given delegates, based on their respective order.

      Parameters:
      delegates - The delegates to include in the factory
      Returns:
      an instance delegating to the given delegates

    • getDelegates

      public List<ParameterResolverFactory> getDelegates()
      Returns the delegates of this instance, in the order they are evaluated to resolve parameters.
      Returns:
      the delegates of this instance, in the order they are evaluated to resolve parameters

    • createInstance

      public @Nullable ParameterResolver<?> createInstance(Executable executable, Parameter[] parameters, int parameterIndex)
      Description copied from interface: ParameterResolverFactory
      If available, creates a ParameterResolver instance that can provide a parameter of type parameterType for a given message.

      If the ParameterResolverFactory cannot provide a suitable ParameterResolver, returns null.

      Specified by:
      createInstance in interface ParameterResolverFactory
      Parameters:
      executable - The executable (constructor or method) to inspect.
      parameters - The parameters on the executable to inspect.
      parameterIndex - The index of the parameter to return a ParameterResolver for.
      Returns:
      A suitable ParameterResolver, or null if none is found.