Package org.openstreetmap.josm.data.osm.history

Class HistoryDataSet

java.lang.Object

org.openstreetmap.josm.data.osm.history.HistoryDataSet

All Implemented Interfaces:

LayerManager.LayerChangeListener

public class HistoryDataSet
extends java.lang.Object
implements LayerManager.LayerChangeListener

A data set holding histories of OSM primitives.

Since:

1670, 10386 (new LayerChangeListener interface)

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.Map<java.lang.Long,Changeset>	changesets
private java.util.Map<PrimitiveId,java.util.ArrayList<HistoryOsmPrimitive>>	data	the history data
private static HistoryDataSet	historyDataSet	the unique instance
private java.util.concurrent.CopyOnWriteArrayList<HistoryDataSetListener>	listeners

Constructor Summary

Constructors

Constructor	Description
HistoryDataSet()	Constructs a new HistoryDataSet.

Method Summary

Modifier and Type	Method	Description
void	addHistoryDataSetListener(HistoryDataSetListener listener)	Adds a listener that listens to history data set events.
void	clear()	Clear the history data.
protected void	fireCacheCleared()
protected void	fireHistoryUpdated(PrimitiveId id)
HistoryOsmPrimitive	get(long id, OsmPrimitiveType type, long version)	Replies the history primitive for the primitive with id id and version version.
java.util.Collection<java.lang.Long>	getChangesetIds()	Gets a unsorted set of all changeset ids that were used by the primitives in this data set
History	getHistory(long id, OsmPrimitiveType type)	Replies the history for a given primitive with id id and type type.
History	getHistory(PrimitiveId pid)	Replies the history for a primitive with id id.
static HistoryDataSet	getInstance()	Replies the unique instance of the history data set
void	layerAdded(LayerManager.LayerAddEvent e)	Notifies this listener that a layer has been added.
void	layerOrderChanged(LayerManager.LayerOrderChangeEvent e)	Notifies this listener that the order of layers was changed.
void	layerRemoving(LayerManager.LayerRemoveEvent e)	Notifies this listener that a layer was just removed.
void	mergeInto(HistoryDataSet other)	merges the histories from the HistoryDataSet other in this history data set
void	put(HistoryOsmPrimitive primitive)	Adds a history primitive to the data set
void	putChangeset(Changeset changeset)	Adds a changeset to the data set
void	removeHistoryDataSetListener(HistoryDataSetListener listener)	Removes a listener that listens to history data set events.

Methods inherited from class java.lang.Object

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

Field Detail

historyDataSet

private static HistoryDataSet historyDataSet

the unique instance

data

private final java.util.Map<PrimitiveId,java.util.ArrayList<HistoryOsmPrimitive>> data

the history data

listeners

private final java.util.concurrent.CopyOnWriteArrayList<HistoryDataSetListener> listeners

changesets

private final java.util.Map<java.lang.Long,Changeset> changesets

Constructor Detail

HistoryDataSet

public HistoryDataSet()

Constructs a new HistoryDataSet.

Method Detail

getInstance

public static HistoryDataSet getInstance()

Replies the unique instance of the history data set

Returns:

the unique instance of the history data set

addHistoryDataSetListener

public void addHistoryDataSetListener(HistoryDataSetListener listener)

Adds a listener that listens to history data set events.

Parameters:

listener - The listener

removeHistoryDataSetListener

public void removeHistoryDataSetListener(HistoryDataSetListener listener)

Removes a listener that listens to history data set events.

Parameters:

listener - The listener

fireHistoryUpdated

protected void fireHistoryUpdated(PrimitiveId id)

fireCacheCleared

protected void fireCacheCleared()

get

public HistoryOsmPrimitive get(long id,
                               OsmPrimitiveType type,
                               long version)

Replies the history primitive for the primitive with id id and version version. null, if no such primitive exists.

Parameters:

id - the id of the primitive. > 0 required.

type - the primitive type. Must not be null.

version - the version of the primitive. > 0 required

Returns:

the history primitive for the primitive with id id, type type, and version version

put

public void put(HistoryOsmPrimitive primitive)

Adds a history primitive to the data set

Parameters:

primitive - the history primitive to add

putChangeset

public void putChangeset(Changeset changeset)

Adds a changeset to the data set

Parameters:

changeset - the changeset to add

getHistory

public History getHistory(long id,
                          OsmPrimitiveType type)

Replies the history for a given primitive with id id and type type.

Parameters:

id - the id the if of the primitive. > 0 required

type - the type of the primitive. Must not be null.

Returns:

the history. null, if there isn't a history for id and type.

Throws:

java.lang.IllegalArgumentException - if id <= 0

java.lang.IllegalArgumentException - if type is null

getHistory

public History getHistory(PrimitiveId pid)

Replies the history for a primitive with id id. null, if no such history exists.

Parameters:

pid - the primitive id. Must not be null.

Returns:

the history for a primitive with id id. null, if no such history exists

Throws:

java.lang.NullPointerException - if pid is null

mergeInto

public void mergeInto(HistoryDataSet other)

merges the histories from the HistoryDataSet other in this history data set

Parameters:

other - the other history data set. Ignored if null.

getChangesetIds

public java.util.Collection<java.lang.Long> getChangesetIds()

Gets a unsorted set of all changeset ids that were used by the primitives in this data set

Returns:

The ids

layerOrderChanged

public void layerOrderChanged(LayerManager.LayerOrderChangeEvent e)

Description copied from interface: LayerManager.LayerChangeListener

Notifies this listener that the order of layers was changed.

Listeners are called in the EDT thread. You should not do blocking or long-running tasks in this method.

Specified by:

layerOrderChanged in interface LayerManager.LayerChangeListener

Parameters:

e - The order change event.

layerAdded

public void layerAdded(LayerManager.LayerAddEvent e)

Description copied from interface: LayerManager.LayerChangeListener

Notifies this listener that a layer has been added.

Listeners are called in the EDT thread. You should not do blocking or long-running tasks in this method.

Specified by:

layerAdded in interface LayerManager.LayerChangeListener

Parameters:

e - The new added layer event

layerRemoving

public void layerRemoving(LayerManager.LayerRemoveEvent e)

Description copied from interface: LayerManager.LayerChangeListener

Notifies this listener that a layer was just removed.

Listeners are called in the EDT thread after the layer was removed. Use LayerManager.LayerRemoveEvent.scheduleRemoval(Collection) to remove more layers. You should not do blocking or long-running tasks in this method.

Specified by:

layerRemoving in interface LayerManager.LayerChangeListener

Parameters:

e - The layer to be removed (as event)

clear

public void clear()

Clear the history data.

Since:

17471