```
public class MementoUtil
extends java.lang.Object
```
Utility class to help find the delta to persist upon saving of a persistent workflow. This class will work out-of-the-box for instances assignable to PersistenEntity. If user classes shall be handled, override the methods equals(Object, Object), identifier(Object) and clone(Object).

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addCurrentEntity(java.lang.Object entity)`	Use this entity as the new
`void`	`addMementoEntity(java.lang.Object entity)`	Remember this entity after loading
`protected void`	`autoIteratePersistentMembers(Workflow<?> wf, MementoUtil.IteratorCallback callback)`
`void`	`autoLoad(Workflow<?> wf, PersistenceContext pc)`
`void`	`autoStore(Workflow<?> wf, PersistenceContext pc)`
`protected <T> T`	`clone(T obj)`
`protected boolean`	`ensureId(java.lang.String hint, java.lang.Object entity)`
`protected boolean`	`equals(java.lang.Object currentObject, java.lang.Object mementoObject)`
`protected java.util.Collection<MementoUtil.PersistentMemberAccessor>`	`genericCreateAccessors(java.lang.Class<?> clazz)`
`protected java.lang.Object`	`identifier(java.lang.Object entity)`
`protected boolean`	`isPersistableMember(java.lang.reflect.Field f)`
`void`	`load(PersistenceContext pc)`
`void`	`store(PersistenceContext pc)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

public void autoLoad(Workflow<?> wf,
                     PersistenceContext pc)

public void autoStore(Workflow<?> wf,
                      PersistenceContext pc)

public void load(PersistenceContext pc)

public void store(PersistenceContext pc)

protected void autoIteratePersistentMembers(Workflow<?> wf,
                                            MementoUtil.IteratorCallback callback)

protected java.lang.Object identifier(java.lang.Object entity)

protected boolean equals(java.lang.Object currentObject,
                         java.lang.Object mementoObject)

protected boolean ensureId(java.lang.String hint,
                           java.lang.Object entity)

protected java.util.Collection<MementoUtil.PersistentMemberAccessor> genericCreateAccessors(java.lang.Class<?> clazz)

protected boolean isPersistableMember(java.lang.reflect.Field f)

Modifier and Type	Class	Description
`protected static interface`	`MementoUtil.IteratorCallback`
`protected static interface`	`MementoUtil.PersistentMemberAccessor`

Class MementoUtil