org.eclipse.graphiti.pattern
Class AddFeatureForPattern

java.lang.Object
  org.eclipse.graphiti.features.impl.AbstractFeature
      org.eclipse.graphiti.features.impl.AbstractAddFeature
          org.eclipse.graphiti.pattern.AddFeatureForPattern

All Implemented Interfaces:

IAddFeature, ICustomUndoableFeature, IFeature, IFeatureProviderHolder, IAdd, IDescription, IName

public class AddFeatureForPattern
extends AbstractAddFeature
implements ICustomUndoableFeature

The Class AddFeatureForPattern.

Field Summary

private IAdd

pattern

Fields inherited from class org.eclipse.graphiti.features.impl.AbstractAddFeature

EMPTY

Constructor Summary

AddFeatureForPattern(IFeatureProvider featureProvider, IAdd pattern)
Creates a new AddFeatureForPattern.

Method Summary

PictogramElement	add(IAddContext context) Executes the add.
boolean	canAdd(IAddContext context) Checks, if the add can be executed.
boolean	canRedo(IContext context) Decides if the processed feature can be re-done.
boolean	canUndo(IContext context) Decides if the current feature can be undone - this is the undo of the execute operation.
void	redo(IContext context) This method will be called to actually do the work needed for redo.
void	undo(IContext context) This method will be called to actually do the work needed for undo.

Methods inherited from class org.eclipse.graphiti.features.impl.AbstractAddFeature

canExecute, execute, getName

Methods inherited from class org.eclipse.graphiti.features.impl.AbstractFeature

addGraphicalRepresentation, getAllBusinessObjectsForPictogramElement, getBusinessObjectForPictogramElement, getDescription, getDiagram, getDiagramEditor, getFeatureProvider, getProgressCallback, getUserDecision, hasDoneChanges, isAvailable, layoutPictogramElement, link, link, manageColor, manageColor, setProgressCallback, toString, updatePictogramElement

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.graphiti.features.IFeature

hasDoneChanges, isAvailable

Methods inherited from interface org.eclipse.graphiti.IDescription

getDescription

Methods inherited from interface org.eclipse.graphiti.features.IFeatureProviderHolder

getFeatureProvider

Field Detail

pattern

private IAdd pattern

Constructor Detail

AddFeatureForPattern

public AddFeatureForPattern(IFeatureProvider featureProvider,
                            IAdd pattern)

Creates a new AddFeatureForPattern.

Parameters:

featureProvider - the feature provider

pattern - the pattern

Method Detail

canAdd

public boolean canAdd(IAddContext context)

Description copied from interface: IAdd

Checks, if the add can be executed.

Specified by:

canAdd in interface IAdd

Parameters:

context - the context needed to execute the add

Returns:

true, if the add can be executed

add

public PictogramElement add(IAddContext context)

Description copied from interface: IAdd

Executes the add.

Specified by:

add in interface IAdd

Parameters:

context - the context needed to execute the add

Returns:

the added pictogram element

canUndo

public boolean canUndo(IContext context)

Description copied from interface: IFeature

Decides if the current feature can be undone - this is the undo of the execute operation.

Specified by:

canUndo in interface ICustomUndoableFeature

Specified by:

canUndo in interface IFeature

Overrides:

canUndo in class AbstractFeature

Parameters:

context - this is the general input for this method

Returns:

true if the feature can be undone, false if not

See Also:

IContext

undo

public void undo(IContext context)

Description copied from interface: ICustomUndoableFeature

This method will be called to actually do the work needed for undo. Customers may revert their non-EMF changes done by the feature here.

Specified by:

undo in interface ICustomUndoableFeature

Parameters:

context - this is the instance of the IContext object that was in use when executing the feature

Since:

0.8

canRedo

public boolean canRedo(IContext context)

Description copied from interface: ICustomUndoableFeature

Decides if the processed feature can be re-done.

Note that as soon as any feature reports false here, also all consecutive entries in the command stack are no longer reachable for redo.

Specified by:

canRedo in interface ICustomUndoableFeature

Parameters:

context - this is the instance of the IContext object that was in use when executing the feature

Returns:

true if the feature can be re-done, false if not

Since:

0.8

redo

public void redo(IContext context)

Description copied from interface: ICustomUndoableFeature

This method will be called to actually do the work needed for redo. Customers may re-apply their non-EMF changes done by the feature here. (Usually it might be sufficient to delegate to the execution method of the feature.)

Specified by:

redo in interface ICustomUndoableFeature

Parameters:

context - this is the instance of the IContext object that was in use when executing the feature

Since:

0.8