org.openstreetmap.josm.command

Class DeleteCommand

java.lang.Object

org.openstreetmap.josm.command.PseudoCommand

org.openstreetmap.josm.command.Command

org.openstreetmap.josm.command.DeleteCommand

public class DeleteCommand
extends Command

A command to delete a number of primitives from the dataset.

Since:

23

Nested Class Summary

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

Command.OldNodeState

Field Summary

Fields

Modifier and Type	Field and Description
private Map<OsmPrimitive,PrimitiveData>	clonedPrimitives
private Collection<? extends OsmPrimitive>	toDelete The primitives that get deleted.

Constructor Summary

Constructors

Constructor and Description
DeleteCommand(Collection<? extends OsmPrimitive> data) Constructor.
DeleteCommand(OsmDataLayer layer, Collection<? extends OsmPrimitive> data) Constructor for a collection of data to be deleted in the context of a specific layer
DeleteCommand(OsmDataLayer layer, OsmPrimitive data) Constructor for a single data item.
DeleteCommand(OsmPrimitive data) Constructor.

Method Summary

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

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

checkAndConfirmOutlyingOperation, getLayer, getOrig, invalidBecauselayerRemoved

Methods inherited from class java.lang.Object

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

Field Detail

toDelete

private final Collection<? extends OsmPrimitive> toDelete

The primitives that get deleted.

clonedPrimitives

private final Map<OsmPrimitive,PrimitiveData> clonedPrimitives

Constructor Detail

DeleteCommand

public DeleteCommand(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.

Throws:

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:

IllegalArgumentException - if data is null

DeleteCommand

public DeleteCommand(OsmDataLayer layer,
                     OsmPrimitive data)

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

Parameters:

layer - the layer context for deleting this primitive. Must not be null.

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

Throws:

IllegalArgumentException - if data is null

IllegalArgumentException - if layer is null

DeleteCommand

public DeleteCommand(OsmDataLayer layer,
                     Collection<? extends OsmPrimitive> data)

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

Parameters:

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

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

Throws:

IllegalArgumentException - if layer is null

IllegalArgumentException - if data is null or empty

Method Detail

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.

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(Collection<OsmPrimitive> modified,
                             Collection<OsmPrimitive> deleted,
                             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 Set<OsmPrimitiveType> getTypesToDelete()

getDescriptionText

public String getDescriptionText()

Description copied from class: PseudoCommand

Provides a description text representing this command.

Specified by:

getDescriptionText in class PseudoCommand

Returns:

description text representing this command

getDescriptionIcon

public Icon getDescriptionIcon()

Description copied from class: PseudoCommand

Provides a descriptive icon of this command.

Overrides:

getDescriptionIcon in class PseudoCommand

Returns:

descriptive icon of this command

getChildren

public Collection<PseudoCommand> getChildren()

Description copied from class: PseudoCommand

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

Overrides:

getChildren in class PseudoCommand

Returns:

the subcommands, null if there are no child commands

getParticipatingPrimitives

public Collection<? extends OsmPrimitive> getParticipatingPrimitives()

Description copied from class: Command

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

Overrides:

getParticipatingPrimitives in class Command

Returns:

primitives that take part in this command

deleteWithReferences

public static Command deleteWithReferences(OsmDataLayer layer,
                                           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:

layer - the OsmDataLayer in whose context primitives are deleted. Must not be null.

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:

IllegalArgumentException - if layer is null

deleteWithReferences

public static Command deleteWithReferences(OsmDataLayer layer,
                                           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:

layer - the OsmDataLayer in whose context primitives are deleted. Must not be null.

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:

IllegalArgumentException - if layer is null

delete

public static Command delete(OsmDataLayer layer,
                             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:

layer - the OsmDataLayer in whose context the primitives are deleted

selection - the objects to delete.

Returns:

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

computeNodesToDelete

protected static Collection<Node> computeNodesToDelete(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 OsmPrimitive.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(OsmDataLayer layer,
                             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:

layer - the OsmDataLayer in whose context the primitives are deleted

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.

delete

public static Command delete(OsmDataLayer layer,
                             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:

layer - the OsmDataLayer in whose context the primitives are deleted

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.

deleteWaySegment

public static Command deleteWaySegment(OsmDataLayer layer,
                                       WaySegment ws)

checkAndConfirmOutlyingDelete

public static boolean checkAndConfirmOutlyingDelete(Collection<? extends OsmPrimitive> primitives,
                                                    Collection<? extends OsmPrimitive> ignore)

confirmRelationDeletion

private static boolean confirmRelationDeletion(Collection<Relation> relations)

hashCode

public int hashCode()

Overrides:

hashCode in class Command

equals

public boolean equals(Object obj)

Overrides:

equals in class Command