org.openstreetmap.josm.command
Class PurgeCommand

java.lang.Object
  org.openstreetmap.josm.command.PseudoCommand
      org.openstreetmap.josm.command.Command
          org.openstreetmap.josm.command.PurgeCommand

public class PurgeCommand
extends Command

Command, to purge a list of primitives.

Field Summary

protected DataSet	ds
protected Storage<PrimitiveData>	makeIncompleteData
protected java.util.Map<PrimitiveId,PrimitiveData>	makeIncompleteData_byPrimId
protected java.util.List<OsmPrimitive>	toPurge

Constructor Summary

PurgeCommand(OsmDataLayer layer, java.util.Collection<OsmPrimitive> toPurge, java.util.Collection<OsmPrimitive> makeIncomplete)
This command relies on a number of consistency conditions: - makeIncomplete must be a subset of toPurge.

Method Summary

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.
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.
protected void	saveIncomplete(java.util.Collection<OsmPrimitive> makeIncomplete)
static java.util.List<OsmPrimitive>	topoSort(java.util.Collection<OsmPrimitive> sel) Sorts a collection of primitives such that for each object its referrers come later in the sorted collection.
void	undoCommand() Undoes the command.

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

checkAndConfirmOutlyingOperation, getLayer, getOrig, invalidBecauselayerRemoved

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

getChildren

Methods inherited from class java.lang.Object

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

Field Detail

toPurge

protected java.util.List<OsmPrimitive> toPurge

makeIncompleteData

protected Storage<PrimitiveData> makeIncompleteData

makeIncompleteData_byPrimId

protected java.util.Map<PrimitiveId,PrimitiveData> makeIncompleteData_byPrimId

ds

protected final DataSet ds

Constructor Detail

PurgeCommand

public PurgeCommand(OsmDataLayer layer,
                    java.util.Collection<OsmPrimitive> toPurge,
                    java.util.Collection<OsmPrimitive> makeIncomplete)

This command relies on a number of consistency conditions: - makeIncomplete must be a subset of toPurge. - Each primitive, that is in toPurge but not in makeIncomplete, must have all its referrers in toPurge. - Each element of makeIncomplete must not be new and must have only referrers that are either a relation or included in toPurge.

Method Detail

saveIncomplete

protected void saveIncomplete(java.util.Collection<OsmPrimitive> makeIncomplete)

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

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

topoSort

public static java.util.List<OsmPrimitive> topoSort(java.util.Collection<OsmPrimitive> sel)

Sorts a collection of primitives such that for each object its referrers come later in the sorted collection.

getDescriptionText

public java.lang.String getDescriptionText()

Description copied from class: PseudoCommand

Provides a description text representing this command.

Specified by:

getDescriptionText in class PseudoCommand

getDescriptionIcon

public javax.swing.Icon getDescriptionIcon()

Description copied from class: PseudoCommand

Provides a descriptive icon of this command.

Overrides:

getDescriptionIcon in class PseudoCommand

getParticipatingPrimitives

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

Description copied from class: Command

Return the primitives that take part in this command.

Overrides:

getParticipatingPrimitives 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