org.axonframework.modelling.command

Class GenericJpaRepository.Builder<T>

java.lang.Object

org.axonframework.modelling.command.AbstractRepository.Builder<T>

org.axonframework.modelling.command.LockingRepository.Builder<T>

org.axonframework.modelling.command.GenericJpaRepository.Builder<T>

Type Parameters:

T - a generic specifying the Aggregate type contained in this Repository implementation

Enclosing class:

GenericJpaRepository<T>

public static class GenericJpaRepository.Builder<T>
extends LockingRepository.Builder<T>

Builder class to instantiate a GenericJpaRepository for aggregate type T.

The LockFactory is defaulted to an NullLockFactory, thus providing no additional locking, and the identifierConverter to Function.identity(). A goal of this Builder goal is to create an AggregateModel specifying generic T as the aggregate type to be stored. All aggregates in this repository must be instanceOf this aggregate type. To instantiate this AggregateModel, either an AggregateModel can be provided directly or an aggregateType of type Class can be used. The latter will internally resolve to an AggregateModel. Thus, either the AggregateModel or the aggregateType should be provided.

Additionally, the EntityManagerProvider and EventBus are hard requirements and as such should be provided.

Field Summary

Fields inherited from class org.axonframework.modelling.command.AbstractRepository.Builder

aggregateType

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Builder(Class<T> aggregateType) Creates a builder for a Repository for given aggregateType.

Method Summary

Modifier and Type	Method and Description
GenericJpaRepository.Builder<T>	aggregateModel(AggregateModel<T> aggregateModel) Sets the AggregateModel of generic type T, describing the structure of the aggregate this Repository will store.
GenericJpaRepository<T>	build() Initializes a GenericJpaRepository as specified through this Builder.
GenericJpaRepository.Builder<T>	entityManagerProvider(EntityManagerProvider entityManagerProvider) Sets the EntityManagerProvider which provides the EntityManager instance for this repository.
GenericJpaRepository.Builder<T>	eventBus(EventBus eventBus) Sets the EventBus to which events are published.
GenericJpaRepository.Builder<T>	handlerDefinition(HandlerDefinition handlerDefinition) Sets the HandlerDefinition used to create concrete handlers for the given aggregateType.
GenericJpaRepository.Builder<T>	identifierConverter(Function<String,?> identifierConverter) Sets the Function which converts a String based identifier to the Identifier object used in the Entity.
GenericJpaRepository.Builder<T>	lockFactory(LockFactory lockFactory) Sets the LockFactory used to lock an aggregate.
GenericJpaRepository.Builder<T>	parameterResolverFactory(ParameterResolverFactory parameterResolverFactory) Sets the ParameterResolverFactory used to resolve parameters for annotated handlers contained in the Aggregate.
GenericJpaRepository.Builder<T>	repositoryProvider(RepositoryProvider repositoryProvider) Sets the RepositoryProvider which services repositories for specific aggregate types.
protected void	validate() Validates whether the fields contained in this Builder are set accordingly.

Methods inherited from class org.axonframework.modelling.command.AbstractRepository.Builder

buildAggregateModel

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

protected Builder(Class<T> aggregateType)

Creates a builder for a Repository for given aggregateType.

Parameters:

aggregateType - the aggregateType specifying the type of aggregate this Repository will store

Method Detail

parameterResolverFactory

public GenericJpaRepository.Builder<T> parameterResolverFactory(ParameterResolverFactory parameterResolverFactory)

Description copied from class: AbstractRepository.Builder

Sets the ParameterResolverFactory used to resolve parameters for annotated handlers contained in the Aggregate. Only used if the aggregateType approach is selected to create an AggregateModel.

Overrides:

parameterResolverFactory in class LockingRepository.Builder<T>

Parameters:

parameterResolverFactory - a ParameterResolverFactory used to resolve parameters for annotated handlers contained in the Aggregate

Returns:

the current Builder instance, for fluent interfacing

handlerDefinition

public GenericJpaRepository.Builder<T> handlerDefinition(HandlerDefinition handlerDefinition)

Description copied from class: AbstractRepository.Builder

Sets the HandlerDefinition used to create concrete handlers for the given aggregateType. Only used if the aggregateType approach is selected to create an AggregateModel.

Overrides:

handlerDefinition in class LockingRepository.Builder<T>

Parameters:

handlerDefinition - a HandlerDefinition used to create concrete handlers for the given aggregateType.

Returns:

the current Builder instance, for fluent interfacing

aggregateModel

public GenericJpaRepository.Builder<T> aggregateModel(AggregateModel<T> aggregateModel)

Description copied from class: AbstractRepository.Builder

Sets the AggregateModel of generic type T, describing the structure of the aggregate this Repository will store.

Overrides:

aggregateModel in class LockingRepository.Builder<T>

Parameters:

aggregateModel - the AggregateModel of generic type T of the aggregate this Repository will store

Returns:

the current Builder instance, for fluent interfacing

lockFactory

public GenericJpaRepository.Builder<T> lockFactory(LockFactory lockFactory)

Description copied from class: LockingRepository.Builder

Sets the LockFactory used to lock an aggregate. Defaults to a pessimistic locking strategy, implemented in the PessimisticLockFactory.

Overrides:

lockFactory in class LockingRepository.Builder<T>

Parameters:

lockFactory - a LockFactory used to lock an aggregate

Returns:

the current Builder instance, for fluent interfacing

entityManagerProvider

public GenericJpaRepository.Builder<T> entityManagerProvider(EntityManagerProvider entityManagerProvider)

Sets the EntityManagerProvider which provides the EntityManager instance for this repository.

Parameters:

entityManagerProvider - a EntityManagerProvider which provides the EntityManager instance for this repository

Returns:

the current Builder instance, for fluent interfacing

eventBus

public GenericJpaRepository.Builder<T> eventBus(EventBus eventBus)

Sets the EventBus to which events are published.

Parameters:

eventBus - an EventBus to which events are published

Returns:

the current Builder instance, for fluent interfacing

repositoryProvider

public GenericJpaRepository.Builder<T> repositoryProvider(RepositoryProvider repositoryProvider)

Sets the RepositoryProvider which services repositories for specific aggregate types.

Parameters:

repositoryProvider - a RepositoryProvider servicing repositories for specific aggregate types

Returns:

the current Builder instance, for fluent interfacing

identifierConverter

public GenericJpaRepository.Builder<T> identifierConverter(Function<String,?> identifierConverter)

Sets the Function which converts a String based identifier to the Identifier object used in the Entity.

Parameters:

identifierConverter - a Function of input type String and return type ? which converts the String based identifier to the Identifier object used in the Entity

Returns:

the current Builder instance, for fluent interfacing

build

public GenericJpaRepository<T> build()

Initializes a GenericJpaRepository as specified through this Builder.

Returns:

a GenericJpaRepository as specified through this Builder

validate

protected void validate()

Description copied from class: AbstractRepository.Builder

Validates whether the fields contained in this Builder are set accordingly.

Overrides:

validate in class AbstractRepository.Builder<T>