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Eclipse Platform
Release 3.5

org.eclipse.ui.ide.undo
Class CopyProjectOperation

java.lang.Object
  extended by 

org.eclipse.core.commands.operations.AbstractOperation
      extended by 

org.eclipse.ui.ide.undo.AbstractWorkspaceOperation
          extended by 
org.eclipse.ui.ide.undo.CopyProjectOperation
All Implemented Interfaces:
IAdvancedUndoableOperation, IAdvancedUndoableOperation2, IUndoableOperation

public class CopyProjectOperation
extends AbstractWorkspaceOperation

A CopyProjectOperation represents an undoable operation for copying a project, also specifying the location of its contents. Clients may call the public API from a background thread. This class is intended to be instantiated and used by clients. It is not intended to be subclassed by clients.

Since:
3.3

Field Summary
protected   IPath destination
           
protected   IPath[] destinationPaths
           
protected   ResourceDescription[] resourceDescriptions
           
 
Fields inherited from class org.eclipse.ui.ide.undo. AbstractWorkspaceOperation
EXECUTE, quietCompute, REDO, resources, UNDO
 
Constructor Summary
CopyProjectOperation ( IProject project, String name, URI location, String label)
          Create a CopyProjectOperation that copies the specified project and sets its location to the specified location.
 
Method Summary
protected  void appendDescriptiveText ( StringBuffer text)
          Append any descriptive text to the specified string buffer to be shown in the receiver's AbstractWorkspaceOperation.toString() text.
protected   ISchedulingRule computeCreateSchedulingRule ()
          Compute a scheduling rule for creating resources.
protected   IStatus computeCreateStatus (boolean allowOverwrite)
          Compute the status for creating resources from the descriptions.
protected   ISchedulingRule computeDeleteSchedulingRule ()
          Compute a scheduling rule for deleting resources.
protected   IStatus computeDeleteStatus ()
          Compute the status for deleting resources.
  IStatus computeExecutionStatus ( IProgressMonitor monitor)
          Return a status indicating the projected outcome of executing the receiver.
protected   IStatus computeMoveOrCopyStatus ()
          Compute the status for moving or copying the resources.
  IStatus computeRedoableStatus ( IProgressMonitor monitor)
          Return a status indicating the projected outcome of redoing the receiver.
  IStatus computeUndoableStatus ( IProgressMonitor monitor)
          Return a status indicating the projected outcome of undoing the receiver.
protected  void delete ( IProgressMonitor monitor, IAdaptable uiInfo, boolean deleteContent)
          Delete any resources known by this operation.
protected  void doExecute ( IProgressMonitor monitor, IAdaptable uiInfo)
          Perform the specific work involved in executing this operation.
protected  void doUndo ( IProgressMonitor monitor, IAdaptable uiInfo)
          Perform the specific work involved in undoing this operation.
protected   IPath getDestinationPath ( IResource resource, int index)
          Return the destination path that should be used to move or copy the specified resource.
protected   String getProposedName ( IResource resource, int index)
          Return a string indicating the proposed name for the resource
protected  boolean isDestinationPathValid ( IResource resource, int index)
          Return a boolean indicating whether the proposed destination path for a resource is valid.
protected  void recreate ( IProgressMonitor monitor, IAdaptable uiInfo)
          Recreate any resources known by this operation.
protected  void setResourceDescriptions ( ResourceDescription[] descriptions)
          Set the array of resource descriptions describing resources to be restored when undoing or redoing this operation.
protected  void setTargetResources ( IResource[] targetResources)
          Set the resources which are affected by this operation
protected  boolean updateResourceChangeDescriptionFactory ( IResourceChangeDescriptionFactory factory, int operation)
          Update the provided resource change description factory so it can generate a resource delta describing the result of an undo or redo.
 
Methods inherited from class org.eclipse.ui.ide.undo. AbstractWorkspaceOperation
aboutToNotify, canExecute, canRedo, canUndo, execute, getAffectedObjects, getErrorStatus, getExecuteSchedulingRule, getRedoSchedulingRule, getShell, getUndoSchedulingRule, getWarningStatus, getWorkspace, getWorkspaceRuleFactory, isValid, markInvalid, redo, resourcesExist, resourcesIncludesProjects, runInBackground, setModelProviderIds, setQuietCompute, toString, undo
 
Methods inherited from class org.eclipse.core.commands.operations. AbstractOperation
addContext, dispose, getContexts, getLabel, hasContext, removeContext, setLabel
 
Methods inherited from class java.lang. Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

destinationPaths

protected 
IPath[] destinationPaths

destination

protected 
IPath destination

resourceDescriptions

protected 
ResourceDescription[] resourceDescriptions
Constructor Detail

CopyProjectOperation

public CopyProjectOperation(
IProject project,
                            
String name,
                            
URI location,
                            
String label)
Create a CopyProjectOperation that copies the specified project and sets its location to the specified location.

Parameters:
project - the project to be copied
name - the name of the copy
location - the location for the project's content, or null if the default project location should be used.
label - the label of the operation
Method Detail

computeMoveOrCopyStatus

protected 
IStatus computeMoveOrCopyStatus()
Compute the status for moving or copying the resources. A status severity of OK indicates that the copy or move is likely to be successful. A status severity of ERROR indicates that the operation is no longer valid. Other status severities are open to interpretation by the caller. Note this method may be called on initial moving or copying of a resource, or when a move or copy is undone or redone. Therefore, this method should check conditions that can change over the life of the operation, such as whether the file to moved or copied exists, and whether the target location is still valid. One-time static checks should typically be done by the caller so that the user is not continually prompted or warned about conditions that were acceptable at the time of original execution and do not change over time.

Returns:
the status indicating the projected outcome of moving or copying the resources.

doExecute

protected void doExecute(
IProgressMonitor monitor,
                         
IAdaptable uiInfo)
                  throws 
CoreException
Description copied from class: AbstractWorkspaceOperation
Perform the specific work involved in executing this operation.

Specified by:
doExecute in class AbstractWorkspaceOperation
Parameters:
monitor - the progress monitor to use for the operation
uiInfo - the IAdaptable (or null) provided by the caller in order to supply UI information for prompting the user if necessary. When this parameter is not null, it contains an adapter for the org.eclipse.swt.widgets.Shell.class
Throws:
CoreException - propagates any CoreExceptions thrown from the resources API

doUndo

protected void doUndo(
IProgressMonitor monitor,
                      
IAdaptable uiInfo)
               throws 
CoreException
Description copied from class: AbstractWorkspaceOperation
Perform the specific work involved in undoing this operation.

Specified by:
doUndo in class AbstractWorkspaceOperation
Parameters:
monitor - the progress monitor to use for the operation
uiInfo - the IAdaptable (or null) provided by the caller in order to supply UI information for prompting the user if necessary. When this parameter is not null, it contains an adapter for the org.eclipse.swt.widgets.Shell.class
Throws:
CoreException - propagates any CoreExceptions thrown from the resources API

isDestinationPathValid

protected boolean isDestinationPathValid(
IResource resource,
                                         int index)
Return a boolean indicating whether the proposed destination path for a resource is valid.

Parameters:
resource - the resource whose path is to be checked
index - the integer index of the resource in the resource array
Returns:
a boolean indicating whether the destination path is valid

getProposedName

protected 
String getProposedName(
IResource resource,
                                 int index)
Return a string indicating the proposed name for the resource

Parameters:
resource - the resource whose path is to be checked
index - the integer index of the resource in the resource array
Returns:
the string name of the resource

updateResourceChangeDescriptionFactory

protected boolean updateResourceChangeDescriptionFactory(
IResourceChangeDescriptionFactory factory,
                                                         int operation)
Description copied from class: AbstractWorkspaceOperation
Update the provided resource change description factory so it can generate a resource delta describing the result of an undo or redo. Return a boolean indicating whether any update was done. The default implementation does not update the factory. Subclasses are expected to override this method to more specifically describe their modifications to the workspace.

Overrides:
updateResourceChangeDescriptionFactory in class AbstractWorkspaceOperation
Parameters:
factory - the factory to update
operation - an integer indicating whether the change is part of an execute, undo, or redo
Returns:
a boolean indicating whether the factory was updated.

computeUndoableStatus

public 
IStatus computeUndoableStatus(
IProgressMonitor monitor)
Description copied from class: AbstractWorkspaceOperation
Return a status indicating the projected outcome of undoing the receiver. This method is not called by the operation history, but instead is used by clients (such as implementers of IOperationApprover2) who wish to perform advanced validation of an operation before attempting to undo it. If an ERROR status is returned, the undo will not proceed and the user notified if deemed necessary by the caller. The validity flag on the operation should be marked as invalid. If an OK status is returned, the undo will proceed. The caller must interpret any other returned status severity, and may choose to prompt the user as to how to proceed. If there are multiple conditions that result in an ambiguous status severity, it is best for the implementor of this method to consult the user as to how to proceed for each one, and return an OK or ERROR status that accurately reflects the user's wishes, or to return a multi-status that accurately describes all of the issues at hand, so that the caller may potentially consult the user. (Note that the user should not be consulted at all if a client has called AbstractWorkspaceOperation.setQuietCompute(boolean) with a value of true.) This implementation computes the validity of undo by computing the resource delta that would be generated on undo, and checking whether any registered model providers are affected by the operation.

Specified by:
computeUndoableStatus in interface IAdvancedUndoableOperation
Overrides:
computeUndoableStatus in class AbstractWorkspaceOperation
Parameters:
monitor - the progress monitor to be used for computing the status
Returns:
the status indicating the projected outcome of undoing the receiver
See Also:
IAdvancedUndoableOperation.computeUndoableStatus(org.eclipse.core.runtime.IProgressMonitor), AbstractWorkspaceOperation.setQuietCompute(boolean)

getDestinationPath

protected 
IPath getDestinationPath(
IResource resource,
                                   int index)
Return the destination path that should be used to move or copy the specified resource. This path is relative to the workspace.

Parameters:
resource - the resource being moved or copied
index - the integer index of the resource in the resource array
Returns:
the path specifying the destination for the resource

appendDescriptiveText

protected void appendDescriptiveText(
StringBuffer text)
Description copied from class: AbstractWorkspaceOperation
Append any descriptive text to the specified string buffer to be shown in the receiver's AbstractWorkspaceOperation.toString() text.

Note that this method is not intend to be subclassed by clients.

Parameters:
text - the StringBuffer on which to append the text

computeExecutionStatus

public 
IStatus computeExecutionStatus(
IProgressMonitor monitor)
Description copied from class: AbstractWorkspaceOperation
Return a status indicating the projected outcome of executing the receiver. This method is not called by the operation history, but instead is used by clients (such as implementers of IOperationApprover2) who wish to perform advanced validation of an operation before attempting to execute it. If an ERROR status is returned, the operation will not proceed and the user notified if deemed necessary by the caller. The validity flag on the operation should be marked as invalid. If an OK status is returned, the operation will proceed. The caller must interpret any other returned status severity, and may choose to prompt the user as to how to proceed. If there are multiple conditions that result in an ambiguous status severity, it is best for the implementor of this method to consult the user as to how to proceed for each one, and return an OK or ERROR status that accurately reflects the user's wishes, or to return a multi-status that accurately describes all of the issues at hand, so that the caller may potentially consult the user. (Note that the user should not be consulted at all if a client has called AbstractWorkspaceOperation.setQuietCompute(boolean) with a value of true.) This implementation computes the validity of execution by computing the resource delta that would be generated on execution, and checking whether any registered model providers are affected by the operation.

Specified by:
computeExecutionStatus in interface IAdvancedUndoableOperation2
Overrides:
computeExecutionStatus in class AbstractWorkspaceOperation
Parameters:
monitor - the progress monitor to be used for computing the status
Returns:
the status indicating the projected outcome of executing the receiver
See Also:
IAdvancedUndoableOperation.computeUndoableStatus(org.eclipse.core.runtime.IProgressMonitor), AbstractWorkspaceOperation.setQuietCompute(boolean)

computeRedoableStatus

public 
IStatus computeRedoableStatus(
IProgressMonitor monitor)
Description copied from class: AbstractWorkspaceOperation
Return a status indicating the projected outcome of redoing the receiver. This method is not called by the operation history, but instead is used by clients (such as implementers of IOperationApprover2) who wish to perform advanced validation of an operation before attempting to redo it. If an ERROR status is returned, the redo will not proceed and the user notified if deemed necessary by the caller. The validity flag on the operation should be marked as invalid. If an OK status is returned, the redo will proceed. The caller must interpret any other returned status severity, and may choose to prompt the user as to how to proceed. If there are multiple conditions that result in an ambiguous status severity, it is best for the implementor of this method to consult the user as to how to proceed for each one, and return an OK or ERROR status that accurately reflects the user's wishes, or to return a multi-status that accurately describes all of the issues at hand, so that the caller may potentially consult the user. (Note that the user should not be consulted at all if a client has called AbstractWorkspaceOperation.setQuietCompute(boolean) with a value of true.) This implementation computes the validity of redo by computing the resource delta that would be generated on redo, and checking whether any registered model providers are affected by the operation.

Specified by:
computeRedoableStatus in interface IAdvancedUndoableOperation
Overrides:
computeRedoableStatus in class AbstractWorkspaceOperation
Parameters:
monitor - the progress monitor to be used for computing the status
Returns:
the status indicating the projected outcome of redoing the receiver
See Also:
IAdvancedUndoableOperation.computeUndoableStatus(org.eclipse.core.runtime.IProgressMonitor), AbstractWorkspaceOperation.setQuietCompute(boolean)

delete

protected void delete(
IProgressMonitor monitor,
                      
IAdaptable uiInfo,
                      boolean deleteContent)
               throws 
CoreException
Delete any resources known by this operation. Store enough information to undo and redo the operation.

Parameters:
monitor - the progress monitor to use for the operation
uiInfo - the IAdaptable (or null) provided by the caller in order to supply UI information for prompting the user if necessary. When this parameter is not null, it contains an adapter for the org.eclipse.swt.widgets.Shell.class
deleteContent - true if the content of any known projects should be deleted along with the project. false if project content should not be deleted.
Throws:
CoreException - propagates any CoreExceptions thrown from the resources API

recreate

protected void recreate(
IProgressMonitor monitor,
                        
IAdaptable uiInfo)
                 throws 
CoreException
Recreate any resources known by this operation. Store enough information to undo and redo the operation.

Parameters:
monitor - the progress monitor to use for the operation
uiInfo - the IAdaptable (or null) provided by the caller in order to supply UI information for prompting the user if necessary. When this parameter is not null, it contains an adapter for the org.eclipse.swt.widgets.Shell.class
Throws:
CoreException - propagates any CoreExceptions thrown from the resources API

computeCreateStatus

protected 
IStatus computeCreateStatus(boolean allowOverwrite)
Compute the status for creating resources from the descriptions. A status severity of OK indicates that the create is likely to be successful. A status severity of ERROR indicates that the operation is no longer valid. Other status severities are open to interpretation by the caller. Note this method may be called on initial creation of a resource, or when a create or delete operation is being undone or redone. Therefore, this method should check conditions that can change over the life of the operation, such as the existence of the information needed to carry out the operation. One-time static checks should typically be done by the caller (such as the action that creates the operation) so that the user is not continually prompted or warned about conditions that were acceptable at the time of original execution.

Parameters:
allowOverwrite - a boolean that specifies whether resource creation should be allowed to overwrite an existent resource.

computeDeleteStatus

protected 
IStatus computeDeleteStatus()
Compute the status for deleting resources. A status severity of OK indicates that the delete is likely to be successful. A status severity of ERROR indicates that the operation is no longer valid. Other status severities are open to interpretation by the caller. Note this method may be called on initial deletion of a resource, or when a create or delete operation is being undone or redone. Therefore, this method should check conditions that can change over the life of the operation, such as the existence of the resources to be deleted. One-time static checks should typically be done by the caller (such as the action that creates the operation) so that the user is not continually prompted or warned about conditions that were acceptable at the time of original execution.


setResourceDescriptions

protected void setResourceDescriptions(
ResourceDescription[] descriptions)
Set the array of resource descriptions describing resources to be restored when undoing or redoing this operation.

Parameters:
descriptions - the array of resource descriptions

computeCreateSchedulingRule

protected 
ISchedulingRule computeCreateSchedulingRule()
Compute a scheduling rule for creating resources.

Returns:
a scheduling rule appropriate for creating the resources specified in the resource descriptions

computeDeleteSchedulingRule

protected 
ISchedulingRule computeDeleteSchedulingRule()
Compute a scheduling rule for deleting resources.

Returns:
a scheduling rule appropriate for deleting the resources specified in the receiver.

setTargetResources

protected void setTargetResources(
IResource[] targetResources)
Description copied from class: AbstractWorkspaceOperation
Set the resources which are affected by this operation

Overrides:
setTargetResources in class AbstractWorkspaceOperation
Parameters:
targetResources - an array of resources

Eclipse Platform
Release 3.5

Guidelines for using Eclipse APIs.

Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.


 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire