oracle.jdeveloper.audit.transform

Class NullTransformAdapter

java.lang.Object

oracle.jdeveloper.audit.transform.TransformAdapter

oracle.jdeveloper.audit.transform.NullTransformAdapter

public class NullTransformAdapter
extends TransformAdapter

Null transform adapter for transforms that do not actually transform anything.

Nested Class Summary

Nested classes/interfaces inherited from class oracle.jdeveloper.audit.transform.TransformAdapter

TransformAdapter.ConstructRegion, TransformAdapter.LocationRegion, TransformAdapter.Region

Constructor Summary

Constructors

Constructor and Description
NullTransformAdapter()

Method Summary

Methods

Modifier and Type	Method and Description
void	beginTransform(TransformContext context) Begins a transform of this type.
void	beginTransformSequence(TransformSequenceContext sequenceContext) Begins a transform sequence.
void	cancelTransform(TransformContext context) Cancels a transform of this type.
void	cancelTransformSequence(TransformSequenceContext sequenceContext) Cancels a transform sequence of this type.
TransformContext	createContext(Transform transform, Violation violation, Location location) Creates a context for a transform over a violation.
void	endTransform(TransformContext context) Ends a transform of this type.
void	endTransformSequence(TransformSequenceContext sequenceContext) Ends a transform sequence.
java.lang.Class	getContextClass() Gets the class of the context created by TransformAdapter.createContext(oracle.jdeveloper.audit.transform.Transform, oracle.jdeveloper.audit.service.Violation, oracle.jdeveloper.audit.model.Location).
boolean	isTransformable(Location location) Gets whether a location is transformable by this transform adapter.

Methods inherited from class oracle.jdeveloper.audit.transform.TransformAdapter

addHighlight, addRemovedHighlight, beginTransform, getDeferredCommands, getHighlightRegions, getSelection, invokeLater, isTransformable, makeTransformable, makeWritable, setPredecessorApplyData, setSelection, setSelection

Methods inherited from class java.lang.Object

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

Constructor Detail

NullTransformAdapter

public NullTransformAdapter()

Method Detail

getContextClass

public java.lang.Class getContextClass()

Description copied from class: TransformAdapter

Gets the class of the context created by TransformAdapter.createContext(oracle.jdeveloper.audit.transform.Transform, oracle.jdeveloper.audit.service.Violation, oracle.jdeveloper.audit.model.Location).

Specified by:

getContextClass in class TransformAdapter

createContext

public TransformContext createContext(Transform transform,
                             Violation violation,
                             Location location)

Description copied from class: TransformAdapter

Creates a context for a transform over a violation.

Specified by:

createContext in class TransformAdapter

beginTransformSequence

public void beginTransformSequence(TransformSequenceContext sequenceContext)
                            throws java.lang.Exception

Begins a transform sequence. A transform sequence is a sequence of transforms which use the same TransformAdapter subclass and are applied in sequence to the same model. The sequence context allows the transform adapters to share state through the sequence, typically to allow optimization (e.g., to coalesce multiple transactions into a single transaction). The framework ensures the following before invoking this method:

• CommandProcessor.beginTrans(java.lang.String) has been invoked to start a command processor batch operation;
• the calling thread holds a read lock on the model to which the transforms in the sequence apply.

  The default TransformAdapter implementation does nothing.

  The NullTransformAdapter implementation does nothing.

Overrides:

beginTransformSequence in class TransformAdapter

Parameters:

sequenceContext - The sequence context for the current sequence.

Throws:

java.lang.Exception

beginTransform

public void beginTransform(TransformContext context)

Begins a transform of this type. The framework ensures the following before invoking this method:

• CommandProcessor.beginTrans(java.lang.String) has been invoked to start a command processor batch operation;
• the calling thread holds a read lock on the model containing the transform location;
• the TransformAdapter.beginTransformSequence(oracle.jdeveloper.audit.transform.TransformSequenceContext) method has been invoked;
• the transform class has an apply method that matches the construct at the violation location;
• if the transform class has an isApplicable method that matches the construct at the violation location, it has been invoked and has returned true;
• if the transform class has a query method that matches the construct at the violation location, it has been invoked and has returned non-null data.

  The NullTransformAdapter implementation does nothing.

Specified by:

beginTransform in class TransformAdapter

Parameters:

context - A transform context created by this adapter.

endTransform

public void endTransform(TransformContext context)
                  throws java.lang.Exception

Ends a transform of this type. The framework ensures the following before invoking this method:

• TransformAdapter.beginTransform(oracle.jdeveloper.audit.transform.TransformContext) has been invoked (its preconditions still hold);
• the apply method that matches this construct has been invoked and has returned normally.

  The NullTransformAdapter implementation does nothing.

Specified by:

endTransform in class TransformAdapter

Parameters:

context - A transform context created by this adapter.

Throws:

java.lang.Exception

cancelTransform

public void cancelTransform(TransformContext context)
                     throws java.lang.Exception

Cancels a transform of this type. The framework ensures the following before invoking this method:

• TransformAdapter.beginTransform(oracle.jdeveloper.audit.transform.TransformContext) has been invoked (its preconditions still hold);
• the apply method that matches this construct has been invoked;
• the apply method has thrown an exception or the apply method has completed normally and the TransformAdapter.endTransform(oracle.jdeveloper.audit.transform.TransformContext) method has thrown an exception.

  The NullTransformAdapter implementation does nothing.

Specified by:

cancelTransform in class TransformAdapter

Parameters:

context - A transform context created by this type.

Throws:

java.lang.Exception

cancelTransformSequence

public void cancelTransformSequence(TransformSequenceContext sequenceContext)
                             throws java.lang.Exception

Cancels a transform sequence of this type. The framework ensures the following before invoking this method:

• TransformAdapter.beginTransformSequence(oracle.jdeveloper.audit.transform.TransformSequenceContext) has been invoked (its preconditions still hold);
• the apply method that matches this construct has been invoked;
• the apply method has thrown an exception or the apply method has completed normally and the TransformAdapter.endTransformSequence(oracle.jdeveloper.audit.transform.TransformSequenceContext) method has thrown an exception.

  The default TransformAdapter implementation does nothing.

  The NullTransformAdapter implementation does nothing.

Overrides:

cancelTransformSequence in class TransformAdapter

Parameters:

sequenceContext - The sequence context for the current sequence.

Throws:

java.lang.Exception

endTransformSequence

public void endTransformSequence(TransformSequenceContext sequenceContext)
                          throws java.lang.Exception

Ends a transform sequence. Before invoking this method, the framework ensures that TransformAdapter.beginTransformSequence(oracle.jdeveloper.audit.transform.TransformSequenceContext) has been invoked and its preconditions still hold.

The default TransformAdapter implementation does nothing.

The NullTransformAdapter implementation does nothing.

Overrides:

endTransformSequence in class TransformAdapter

Parameters:

sequenceContext - The sequence context for the current sequence.

Throws:

java.lang.Exception

isTransformable

public boolean isTransformable(Location location)

Description copied from class: TransformAdapter

Gets whether a location is transformable by this transform adapter. The framework ensures the following before invoking this method:

• the calling thread holds a read lock on the model for the location, and
• TransformAdapter.isTransformable(ModelAdapter) on the model for the location is true.

  The default TransformAdapter implementation returns true unless the region is guarded.

Overrides:

isTransformable in class TransformAdapter

Parameters:

location - The location to be transformed.