oracle.javatools.db.refactoring

Class CascadeProcessor

java.lang.Object

oracle.javatools.db.refactoring.UpdateProcessor

oracle.javatools.db.refactoring.RefactoringProcessor

oracle.javatools.db.refactoring.CascadeProcessor

public class CascadeProcessor
extends RefactoringProcessor

UpdateProcess implementation that can be registered with a provider and it will cascade deletes and updates to dependent objects automatically as part of any update operation.

It should not be necessary to register this with Database implementations as a Database does the cascade itself.

Since:

12

Constructor Summary

Constructors

Constructor and Description
CascadeProcessor()

Method Summary

Modifier and Type	Method and Description
protected void	cascadeDelete(DBObjectTransaction txn, DBObject obj, SystemObject depObj) Processes the delete of the given DBObject to a dependent SystemObject.
protected void	cascadeUpdate(DBObjectTransaction txn, Difference objDiff, SystemObject depObj)
protected void	processObjectDelete(DBObjectTransaction txn, SystemObject obj) Process the delete of a SystemObject from the provider.
protected void	processObjectUpdate(DBObjectTransaction txn, Difference objDiff) The default processObjectDifference implementation calls this method for every object that is to be updated
protected void	processSingleObjectUpdate(DBObjectTransaction txn, Difference objDiff) This is called for each DBObject that has changed within the overall difference.

Methods inherited from class oracle.javatools.db.refactoring.RefactoringProcessor

processObjectCreate, processObjectDifference, processUpdate

Methods inherited from class oracle.javatools.db.refactoring.UpdateProcessor

getLogger, getProcessorProperties, onlyProcessesPrimaryUpdates

Methods inherited from class java.lang.Object

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

Constructor Detail

CascadeProcessor

public CascadeProcessor()

Method Detail

processObjectDelete

protected void processObjectDelete(DBObjectTransaction txn,
                                   SystemObject obj)
                            throws DBException

Process the delete of a SystemObject from the provider.

Overrides:

processObjectDelete in class RefactoringProcessor

obj - an object that is to be deleted

Throws:

DBException

cascadeDelete

protected final void cascadeDelete(DBObjectTransaction txn,
                                   DBObject obj,
                                   SystemObject depObj)
                            throws DBException

Processes the delete of the given DBObject to a dependent SystemObject. The reference(s) to the removed DBObject can be from the SystemObject itself or any of its children.

Parameters:

txn - the overall refactoring txn

obj - the object being removed (e.g. PK, Table, Column etc)

depObj - the dependent SystemObject

Throws:

CascadeRequiredException - is the cascade of the removal requires a change to the dependent object and txn.isCascade() is false.

DBException

processObjectUpdate

protected void processObjectUpdate(DBObjectTransaction txn,
                                   Difference objDiff)
                            throws DBException

Description copied from class: RefactoringProcessor

The default processObjectDifference implementation calls this method for every object that is to be updated

Overrides:

processObjectUpdate in class RefactoringProcessor

objDiff - the difference for an object update (containing an original and updated SystemObject).

Throws:

DBException

processSingleObjectUpdate

protected void processSingleObjectUpdate(DBObjectTransaction txn,
                                         Difference objDiff)
                                  throws DBException

This is called for each DBObject that has changed within the overall difference. Every top level and child object that has a property change in it will come through this method.

Parameters:

txn - the overall refactoring txn

objDiff - a "not same" Difference of two DBObjects

Throws:

DBException

cascadeUpdate

protected final void cascadeUpdate(DBObjectTransaction txn,
                                   Difference objDiff,
                                   SystemObject depObj)
                            throws DBException

Throws:

DBException