org.axonframework.eventhandling.tokenstore.jpa

Class JpaTokenStore.Builder

java.lang.Object

org.axonframework.eventhandling.tokenstore.jpa.JpaTokenStore.Builder

Enclosing class:

JpaTokenStore

public static class JpaTokenStore.Builder
extends Object

Builder class to instantiate a JpaTokenStore.

The claimTimeout to a 10 seconds duration, and nodeId is defaulted to the name of the managed bean for the runtime system of the Java virtual machine. The EntityManagerProvider and Serializer are a hard requirements and as such should be provided.

Constructor Summary

Constructors

Constructor and Description
Builder()

Method Summary

Modifier and Type	Method and Description
JpaTokenStore	build() Initializes a JpaTokenStore as specified through this Builder.
JpaTokenStore.Builder	claimTimeout(TemporalAmount claimTimeout) Sets the claimTimeout specifying the amount of time this process will wait after which this process will force a claim of a TrackingToken.
JpaTokenStore.Builder	entityManagerProvider(EntityManagerProvider entityManagerProvider) Sets the EntityManagerProvider which provides the EntityManager used to access the underlying database.
JpaTokenStore.Builder	loadingLockMode(javax.persistence.LockModeType loadingLockMode) The LockModeType to use when loading tokens from the underlying database.
JpaTokenStore.Builder	nodeId(String nodeId) Sets the nodeId to identify ownership of the tokens.
JpaTokenStore.Builder	serializer(Serializer serializer) Sets the Serializer used to de-/serialize TrackingTokens with.
protected void	validate() Validates whether the fields contained in this Builder are set accordingly.

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder()

Method Detail

entityManagerProvider

public JpaTokenStore.Builder entityManagerProvider(EntityManagerProvider entityManagerProvider)

Sets the EntityManagerProvider which provides the EntityManager used to access the underlying database.

Parameters:

entityManagerProvider - a EntityManagerProvider which provides the EntityManager used to access the underlying database

Returns:

the current Builder instance, for fluent interfacing

serializer

public JpaTokenStore.Builder serializer(Serializer serializer)

Sets the Serializer used to de-/serialize TrackingTokens with.

Parameters:

serializer - a Serializer used to de-/serialize TrackingTokens with

Returns:

the current Builder instance, for fluent interfacing

claimTimeout

public JpaTokenStore.Builder claimTimeout(TemporalAmount claimTimeout)

Sets the claimTimeout specifying the amount of time this process will wait after which this process will force a claim of a TrackingToken. Thus if a claim has not been updated for the given claimTimeout, this process will 'steal' the claim. Defaults to a duration of 10 seconds.

Parameters:

claimTimeout - a timeout specifying the time after which this process will force a claim

Returns:

the current Builder instance, for fluent interfacing

nodeId

public JpaTokenStore.Builder nodeId(String nodeId)

Sets the nodeId to identify ownership of the tokens. Defaults to the name of the managed bean for the runtime system of the Java virtual machine

Parameters:

nodeId - the id as a String to identify ownership of the tokens

Returns:

the current Builder instance, for fluent interfacing

loadingLockMode

public JpaTokenStore.Builder loadingLockMode(javax.persistence.LockModeType loadingLockMode)

The LockModeType to use when loading tokens from the underlying database. Defaults to LockModeType.PESSIMISTIC_WRITE, to force a write lock, which prevents lock upgrading and potential resulting deadlocks.

Parameters:

loadingLockMode - The lock mode to use when retrieving tokens from the underlying store

Returns:

the current Builder instance, for fluent interfacing

build

public JpaTokenStore build()

Initializes a JpaTokenStore as specified through this Builder.

Returns:

a JpaTokenStore as specified through this Builder

validate

protected void validate()
                 throws AxonConfigurationException

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

Throws:

AxonConfigurationException - if one field is asserted to be incorrect according to the Builder's specifications