Package org.openstreetmap.josm.command

Class DeleteCommand

java.lang.Object

org.openstreetmap.josm.command.Command

org.openstreetmap.josm.command.DeleteCommand

All Implemented Interfaces:

PseudoCommand

public class DeleteCommand
extends Command

A command to delete a number of primitives from the dataset. To be used correctly, this class requires an initial call to setDeletionCallback(DeletionCallback) to allow interactive confirmation actions.

Since:

23

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	DeleteCommand.DeleteChildCommand
static interface	DeleteCommand.DeletionCallback	Called when a deletion operation must be checked and confirmed by user.

Nested classes/interfaces inherited from class org.openstreetmap.josm.command.Command

Command.OldNodeState

Field Summary

Fields

Modifier and Type	Field	Description
private static DeleteCommand.DeletionCallback	callback
private java.util.Map<OsmPrimitive,PrimitiveData>	clonedPrimitives
private java.util.Collection<? extends OsmPrimitive>	toDelete	The primitives that get deleted.

Fields inherited from class org.openstreetmap.josm.command.Command

IS_INCOMPLETE, IS_OK, IS_OUTSIDE

Constructor Summary

Constructors

Constructor	Description
DeleteCommand(java.util.Collection<? extends OsmPrimitive> data)	Constructor.
DeleteCommand(DataSet dataset, java.util.Collection<? extends OsmPrimitive> data)	Constructor for a collection of data to be deleted in the context of a specific data set
DeleteCommand(DataSet dataset, OsmPrimitive data)	Constructor for a single data item.
DeleteCommand(OsmPrimitive data)	Constructor.

Method Summary

Modifier and Type	Method	Description
private void	checkConsistency()
protected static java.util.Collection<Node>	computeNodesToDelete(java.util.Collection<OsmPrimitive> primitivesToDelete)	Replies the collection of nodes referred to by primitives in primitivesToDelete which can be deleted too.
static Command	delete(java.util.Collection<? extends OsmPrimitive> selection)	Try to delete all given primitives.
static Command	delete(java.util.Collection<? extends OsmPrimitive> selection, boolean alsoDeleteNodesInWay)	Try to delete all given primitives.
static Command	delete(java.util.Collection<? extends OsmPrimitive> selection, boolean alsoDeleteNodesInWay, boolean silent)	Try to delete all given primitives.
static Command	deleteWaySegment(WaySegment ws)	Create a command that deletes a single way segment.
static Command	deleteWithReferences(java.util.Collection<? extends OsmPrimitive> selection)	Delete the primitives and everything they reference.
static Command	deleteWithReferences(java.util.Collection<? extends OsmPrimitive> selection, boolean silent)	Delete the primitives and everything they reference.
boolean	equals(java.lang.Object obj)
boolean	executeCommand()	Executes the command on the dataset.
void	fillModifiedData(java.util.Collection<OsmPrimitive> modified, java.util.Collection<OsmPrimitive> deleted, java.util.Collection<OsmPrimitive> added)	Fill in the changed data this command operates on.
java.util.Collection<PseudoCommand>	getChildren()	Returns the subcommands of this command.
javax.swing.Icon	getDescriptionIcon()	Provides a descriptive icon of this command.
java.lang.String	getDescriptionText()	Provides a description text representing this command.
java.util.Collection<? extends OsmPrimitive>	getParticipatingPrimitives()	Return the primitives that take part in this command.
private java.util.Set<OsmPrimitiveType>	getTypesToDelete()
int	hashCode()
static void	setDeletionCallback(DeleteCommand.DeletionCallback deletionCallback)	Sets the global DeleteCommand.DeletionCallback.
void	undoCommand()	Undoes the command.

Methods inherited from class org.openstreetmap.josm.command.Command

checkOutlyingOrIncompleteOperation, ensurePrimitivesAreInDataset, getAffectedDataSet, getOrig

Methods inherited from class java.lang.Object

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

Field Detail

callback

private static volatile DeleteCommand.DeletionCallback callback

toDelete

private final java.util.Collection<? extends OsmPrimitive> toDelete

The primitives that get deleted.

clonedPrimitives

private final java.util.Map<OsmPrimitive,PrimitiveData> clonedPrimitives

Constructor Detail

DeleteCommand

public DeleteCommand(java.util.Collection<? extends OsmPrimitive> data)

Constructor. Deletes a collection of primitives in the current edit layer.

Parameters:

data - the primitives to delete. Must neither be null nor empty, and belong to a data set

Throws:

java.lang.IllegalArgumentException - if data is null or empty

DeleteCommand

public DeleteCommand(OsmPrimitive data)

Constructor. Deletes a single primitive in the current edit layer.

Parameters:

data - the primitive to delete. Must not be null.

Throws:

java.lang.IllegalArgumentException - if data is null

DeleteCommand

public DeleteCommand(DataSet dataset,
                     OsmPrimitive data)

Constructor for a single data item. Use the collection constructor to delete multiple objects.

Parameters:

dataset - the data set context for deleting this primitive. Must not be null.

data - the primitive to delete. Must not be null.

Throws:

java.lang.IllegalArgumentException - if data is null

java.lang.IllegalArgumentException - if layer is null

Since:

12718

DeleteCommand

public DeleteCommand(DataSet dataset,
                     java.util.Collection<? extends OsmPrimitive> data)

Constructor for a collection of data to be deleted in the context of a specific data set

Parameters:

dataset - the dataset context for deleting these primitives. Must not be null.

data - the primitives to delete. Must neither be null nor empty.

Throws:

java.lang.IllegalArgumentException - if dataset is null

java.lang.IllegalArgumentException - if data is null or empty

Since:

11240

Method Detail

setDeletionCallback

public static void setDeletionCallback(DeleteCommand.DeletionCallback deletionCallback)

Sets the global DeleteCommand.DeletionCallback.

Parameters:

deletionCallback - the new DeletionCallback. Must not be null

Throws:

java.lang.NullPointerException - if deletionCallback is null

Since:

12749

checkConsistency

private void checkConsistency()

executeCommand

public boolean executeCommand()

Description copied from class: Command

Executes the command on the dataset. This implementation will remember all primitives returned by fillModifiedData for restoring them on undo.

The layer should be invalidated after execution so that it can be re-painted.

Overrides:

executeCommand in class Command

Returns:

true

undoCommand

public void undoCommand()

Description copied from class: Command

Undoes the command. It can be assumed that all objects are in the same state they were before. It can also be assumed that executeCommand was called exactly once before. This implementation undoes all objects stored by a former call to executeCommand.

Overrides:

undoCommand in class Command

fillModifiedData

public void fillModifiedData(java.util.Collection<OsmPrimitive> modified,
                             java.util.Collection<OsmPrimitive> deleted,
                             java.util.Collection<OsmPrimitive> added)

Description copied from class: Command

Fill in the changed data this command operates on. Add to the lists, don't clear them.

Specified by:

fillModifiedData in class Command

Parameters:

modified - The modified primitives

deleted - The deleted primitives

added - The added primitives

getTypesToDelete

private java.util.Set<OsmPrimitiveType> getTypesToDelete()

getDescriptionText

public java.lang.String getDescriptionText()

Description copied from interface: PseudoCommand

Provides a description text representing this command.

Returns:

description text representing this command

getDescriptionIcon

public javax.swing.Icon getDescriptionIcon()

Description copied from interface: PseudoCommand

Provides a descriptive icon of this command.

Returns:

descriptive icon of this command

getChildren

public java.util.Collection<PseudoCommand> getChildren()

Description copied from interface: PseudoCommand

Returns the subcommands of this command. Override for subclasses that have child commands.

Returns:

the subcommands, null if there are no child commands

getParticipatingPrimitives

public java.util.Collection<? extends OsmPrimitive> getParticipatingPrimitives()

Description copied from class: Command

Return the primitives that take part in this command. The collection is computed during execution.

Specified by:

getParticipatingPrimitives in interface PseudoCommand

Overrides:

getParticipatingPrimitives in class Command

Returns:

primitives that take part in this command

deleteWithReferences

public static Command deleteWithReferences(java.util.Collection<? extends OsmPrimitive> selection,
                                           boolean silent)

Delete the primitives and everything they reference. If a node is deleted, the node and all ways and relations the node is part of are deleted as well. If a way is deleted, all relations the way is member of are also deleted. If a way is deleted, only the way and no nodes are deleted.

Parameters:

selection - The list of all object to be deleted.

silent - Set to true if the user should not be bugged with additional dialogs

Returns:

command A command to perform the deletions, or null of there is nothing to delete.

Throws:

java.lang.IllegalArgumentException - if layer is null

Since:

12718

deleteWithReferences

public static Command deleteWithReferences(java.util.Collection<? extends OsmPrimitive> selection)

Delete the primitives and everything they reference. If a node is deleted, the node and all ways and relations the node is part of are deleted as well. If a way is deleted, all relations the way is member of are also deleted. If a way is deleted, only the way and no nodes are deleted.

Parameters:

selection - The list of all object to be deleted.

Returns:

command A command to perform the deletions, or null of there is nothing to delete.

Throws:

java.lang.IllegalArgumentException - if layer is null

Since:

12718

delete

public static Command delete(java.util.Collection<? extends OsmPrimitive> selection)

Try to delete all given primitives. If a node is used by a way, it's removed from that way. If a node or a way is used by a relation, inform the user and do not delete. If this would cause ways with less than 2 nodes to be created, delete these ways instead. If they are part of a relation, inform the user and do not delete.

Parameters:

selection - the objects to delete.

Returns:

command a command to perform the deletions, or null if there is nothing to delete.

Since:

12718

computeNodesToDelete

protected static java.util.Collection<Node> computeNodesToDelete(java.util.Collection<OsmPrimitive> primitivesToDelete)

Replies the collection of nodes referred to by primitives in primitivesToDelete which can be deleted too. A node can be deleted if

• it is untagged (see AbstractPrimitive.isTagged()
• it is not referred to by other non-deleted primitives outside of primitivesToDelete

Parameters:

primitivesToDelete - the primitives to delete

Returns:

the collection of nodes referred to by primitives in primitivesToDelete which can be deleted too

delete

public static Command delete(java.util.Collection<? extends OsmPrimitive> selection,
                             boolean alsoDeleteNodesInWay)

Try to delete all given primitives. If a node is used by a way, it's removed from that way. If a node or a way is used by a relation, inform the user and do not delete. If this would cause ways with less than 2 nodes to be created, delete these ways instead. If they are part of a relation, inform the user and do not delete.

Parameters:

selection - the objects to delete.

alsoDeleteNodesInWay - true if nodes should be deleted as well

Returns:

command a command to perform the deletions, or null if there is nothing to delete.

Since:

12718

delete

public static Command delete(java.util.Collection<? extends OsmPrimitive> selection,
                             boolean alsoDeleteNodesInWay,
                             boolean silent)

Try to delete all given primitives. If a node is used by a way, it's removed from that way. If a node or a way is used by a relation, inform the user and do not delete. If this would cause ways with less than 2 nodes to be created, delete these ways instead. If they are part of a relation, inform the user and do not delete.

Parameters:

selection - the objects to delete.

alsoDeleteNodesInWay - true if nodes should be deleted as well

silent - set to true if the user should not be bugged with additional questions

Returns:

command a command to perform the deletions, or null if there is nothing to delete.

Since:

12718

deleteWaySegment

public static Command deleteWaySegment(WaySegment ws)

Create a command that deletes a single way segment. The way may be split by this.

Parameters:

ws - The way segment that should be deleted

Returns:

A matching command to safely delete that segment.

Since:

12718

hashCode

public int hashCode()

Overrides:

hashCode in class Command

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class Command