org.apache.ojb.odmg.states
Class StateOldDirty

java.lang.Object
  org.apache.ojb.odmg.states.ModificationState
      org.apache.ojb.odmg.states.StateOldDirty

All Implemented Interfaces:

Serializable

public class StateOldDirty
extends ModificationState

this state represents old objects which have been altered during tx.

See Also:

Serialized Form

Field Summary

private static StateOldDirty

_instance

Fields inherited from class org.apache.ojb.odmg.states.ModificationState

serialVersionUID

Constructor Summary

private

StateOldDirty() private constructor: use singleton instance

Method Summary

void	checkpoint(ObjectEnvelope mod) checkpoint the transaction
void	commit(ObjectEnvelope mod) commit the associated transaction
static StateOldDirty	getInstance() perform a checkpoint, i.e.
ModificationState	markClean() return resulting state after marking clean
ModificationState	markDelete() return resulting state after marking delete
ModificationState	markDirty() return resulting state after marking dirty
ModificationState	markNew() return resulting state after marking new
ModificationState	markOld() return resulting state after marking old
boolean	needsUpdate() returns true is this state requires UPDATE
void	rollback(ObjectEnvelope mod) rollback transaction.

Methods inherited from class org.apache.ojb.odmg.states.ModificationState

isTransient, needsDelete, needsInsert, toString

Methods inherited from class java.lang.Object

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

Field Detail

_instance

private static StateOldDirty _instance

Constructor Detail

StateOldDirty

private StateOldDirty()

private constructor: use singleton instance

Method Detail

markClean

public ModificationState markClean()

return resulting state after marking clean

Specified by:

markClean in class ModificationState

markDelete

public ModificationState markDelete()

return resulting state after marking delete

Specified by:

markDelete in class ModificationState

markDirty

public ModificationState markDirty()

return resulting state after marking dirty

Specified by:

markDirty in class ModificationState

markNew

public ModificationState markNew()

return resulting state after marking new

Specified by:

markNew in class ModificationState

markOld

public ModificationState markOld()

return resulting state after marking old

Specified by:

markOld in class ModificationState

getInstance

public static StateOldDirty getInstance()

perform a checkpoint, i.e. perform updates on underlying db but keep locks on objects

checkpoint

public void checkpoint(ObjectEnvelope mod)
                throws PersistenceBrokerException

checkpoint the transaction

Specified by:

checkpoint in class ModificationState

Throws:

PersistenceBrokerException

commit

public void commit(ObjectEnvelope mod)
            throws PersistenceBrokerException

commit the associated transaction

Specified by:

commit in class ModificationState

Throws:

PersistenceBrokerException

rollback

public void rollback(ObjectEnvelope mod)

rollback transaction.

Specified by:

rollback in class ModificationState

needsUpdate

public boolean needsUpdate()

Description copied from class: ModificationState

returns true is this state requires UPDATE

Overrides:

needsUpdate in class ModificationState

Returns:

boolean