Package org.eclipse.gef.mvc.fx.operations

Class AddSnapToStrategyOperation

java.lang.Object

org.eclipse.core.commands.operations.AbstractOperation

org.eclipse.gef.mvc.fx.operations.AddSnapToStrategyOperation

All Implemented Interfaces:

IUndoableOperation, ITransactionalOperation

public class AddSnapToStrategyOperation
extends AbstractOperation
implements ITransactionalOperation

The RemoveSnapToStrategyOperation can be used to add an ISnapToStrategy to the list of supported strategies that is managed by the SnappingModel.

Constructor Summary

Constructors

Constructor	Description
AddSnapToStrategyOperation(SnappingModel model, org.eclipse.gef.mvc.fx.handlers.ISnapToStrategy strategy)	Constructs a new AddSnapToStrategyOperation that will add the given ISnapToStrategy to the list of supported strategies within the given SnappingModel.

Method Summary

Modifier and Type	Method	Description
IStatus	execute(IProgressMonitor monitor, IAdaptable info)
boolean	isContentRelevant()	Returns true if this ITransactionalOperation is actually changing model data (instead of only affecting the visualization).
boolean	isNoOp()	Returns true if this ITransactionalOperation has no effect (in comparison to its initial state).
IStatus	redo(IProgressMonitor monitor, IAdaptable info)
IStatus	undo(IProgressMonitor monitor, IAdaptable info)

Methods inherited from class org.eclipse.core.commands.operations.AbstractOperation

addContext, canExecute, canRedo, canUndo, dispose, getContexts, getLabel, hasContext, removeContext, setLabel, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.core.commands.operations.IUndoableOperation

addContext, canExecute, canRedo, canUndo, dispose, getContexts, getLabel, hasContext, removeContext

Constructor Details

AddSnapToStrategyOperation

public AddSnapToStrategyOperation(SnappingModel model,
 org.eclipse.gef.mvc.fx.handlers.ISnapToStrategy strategy)

Constructs a new AddSnapToStrategyOperation that will add the given ISnapToStrategy to the list of supported strategies within the given SnappingModel.

Parameters:

model - The SnappingModel that is manipulated.

strategy - The ISnapToStrategy that is added.

Method Details

execute

public IStatus execute(IProgressMonitor monitor,
 IAdaptable info)
                throws ExecutionException

Specified by:

execute in interface IUndoableOperation

Specified by:

execute in class AbstractOperation

Throws:

ExecutionException

isContentRelevant

public boolean isContentRelevant()

Description copied from interface: ITransactionalOperation

Returns true if this ITransactionalOperation is actually changing model data (instead of only affecting the visualization). Otherwise returns false. The content relevance of an ITransactionalOperation can be checked to determine if the execution of the operation will affect the model, for example, to set an editor's dirty flag.

Specified by:

isContentRelevant in interface ITransactionalOperation

Returns:

true if this ITransactionalOperation is actually changing model data, otherwise false.

isNoOp

public boolean isNoOp()

Description copied from interface: ITransactionalOperation

Returns true if this ITransactionalOperation has no effect (in comparison to its initial state). Otherwise returns false.

Specified by:

isNoOp in interface ITransactionalOperation

Returns:

true if this ITransactionalOperation has no effect, otherwise false.

redo

public IStatus redo(IProgressMonitor monitor,
 IAdaptable info)
             throws ExecutionException

Specified by:

redo in interface IUndoableOperation

Specified by:

redo in class AbstractOperation

Throws:

ExecutionException

undo

public IStatus undo(IProgressMonitor monitor,
 IAdaptable info)
             throws ExecutionException

Specified by:

undo in interface IUndoableOperation

Specified by:

undo in class AbstractOperation

Throws:

ExecutionException