org.statefulj.persistence.jpa

Class JPAPerister<T>

java.lang.Object

org.statefulj.persistence.common.AbstractPersister<T,Serializable>

org.statefulj.persistence.jpa.JPAPerister<T>

All Implemented Interfaces:

Persister<T>

public class JPAPerister<T>
extends AbstractPersister<T,Serializable>
implements Persister<T>

Constructor Summary

Constructors

Constructor and Description
JPAPerister(List<State<T>> states, State<T> startState, Class<T> clazz, org.springframework.orm.jpa.EntityManagerFactoryInfo entityManagerFactory, org.springframework.transaction.PlatformTransactionManager transactionManager)
JPAPerister(List<State<T>> states, String stateFieldName, State<T> startState, Class<T> clazz, javax.persistence.EntityManager entityManager, org.springframework.transaction.PlatformTransactionManager transactionManager)

Method Summary

Modifier and Type	Method and Description
protected javax.persistence.Query	buildUpdate(Object id, T stateful, State<T> current, State<T> next, Field idField, Field stateField)
protected Field	findIdField(Class<?> clazz)
javax.persistence.EntityManager	getEntityManager()
protected Class<?>	getStateFieldType()
void	setCurrent(T stateful, State<T> current, State<T> next) Set the current State.
void	setEntityManager(javax.persistence.EntityManager entityManager)
protected boolean	validStateField(Field stateField)

Methods inherited from class org.statefulj.persistence.common.AbstractPersister

buildIdFieldAccessor, buildStateFieldAccessor, findStateField, getClazz, getCurrent, getId, getIdField, getIdFieldAccessor, getStartState, getState, getStateField, getStateFieldAccessor, setStartState, setState, setStates, throwStaleState

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.statefulj.fsm.Persister

getCurrent, setStartState, setStates

Constructor Detail

JPAPerister

public JPAPerister(List<State<T>> states,
                   State<T> startState,
                   Class<T> clazz,
                   org.springframework.orm.jpa.EntityManagerFactoryInfo entityManagerFactory,
                   org.springframework.transaction.PlatformTransactionManager transactionManager)

JPAPerister

public JPAPerister(List<State<T>> states,
                   String stateFieldName,
                   State<T> startState,
                   Class<T> clazz,
                   javax.persistence.EntityManager entityManager,
                   org.springframework.transaction.PlatformTransactionManager transactionManager)

Method Detail

setCurrent

public void setCurrent(T stateful,
                       State<T> current,
                       State<T> next)
                throws StaleStateException

Set the current State. This method will ensure that the state in the db matches the expected current state. If not, it will throw a StateStateException

Specified by:

setCurrent in interface Persister<T>

Specified by:

setCurrent in class AbstractPersister<T,Serializable>

Parameters:

stateful - Stateful Entity

current - Expected current State

next - The value of the next State

Throws:

StaleStateException - thrown if the value of the State does not equal to the provided current State

getEntityManager

public javax.persistence.EntityManager getEntityManager()

setEntityManager

public void setEntityManager(javax.persistence.EntityManager entityManager)

buildUpdate

protected javax.persistence.Query buildUpdate(Object id,
                                              T stateful,
                                              State<T> current,
                                              State<T> next,
                                              Field idField,
                                              Field stateField)
                                       throws SecurityException,
                                              IllegalArgumentException,
                                              NoSuchFieldException,
                                              IllegalAccessException

Throws:

SecurityException

IllegalArgumentException

NoSuchFieldException

IllegalAccessException

validStateField

protected boolean validStateField(Field stateField)

Specified by:

validStateField in class AbstractPersister<T,Serializable>

findIdField

protected Field findIdField(Class<?> clazz)

Specified by:

findIdField in class AbstractPersister<T,Serializable>

getStateFieldType

protected Class<?> getStateFieldType()

Specified by:

getStateFieldType in class AbstractPersister<T,Serializable>