com.nutiteq.datasources

Class CompressedCacheTileDataSource

java.lang.Object

com.nutiteq.datasources.TileDataSource

com.nutiteq.datasources.CacheTileDataSource

com.nutiteq.datasources.CompressedCacheTileDataSource

public class CompressedCacheTileDataSource
extends CacheTileDataSource

A tile data source that loads tiles from another tile data source
and caches them in memory as compressed images. This cache is not persistent, tiles
will be cleared once the application closes. Default cache capacity is 6MB.

Field Summary

Fields inherited from class com.nutiteq.datasources.TileDataSource

swigCMemOwn

Constructor Summary

Constructors

Constructor and Description
CompressedCacheTileDataSource(long cPtr, boolean cMemoryOwn)
CompressedCacheTileDataSource(TileDataSource dataSource) Constructs a CompressedCacheTileDataSource object from tile data source.

Method Summary

Modifier and Type	Method and Description
void	clear() Clear the cache.
void	delete()
protected void	finalize()
long	getCapacity() Returns the compressed tile cache capacity.
static long	getCPtr(CompressedCacheTileDataSource obj)
TileData	loadTile(MapTile mapTile) Loads the specified tile.
void	setCapacity(long capacity) Sets the cache capacity.
static CompressedCacheTileDataSource	swigCreatePolymorphicInstance(long cPtr, boolean cMemoryOwn) Creates a polymorphic instance of the given native object.
protected void	swigDirectorDisconnect()
java.lang.String	swigGetClassName() Returns the actual class name of this object.
java.lang.Object	swigGetDirectorObject() Returns the connected director object.
void	swigReleaseOwnership()
void	swigTakeOwnership()

Methods inherited from class com.nutiteq.datasources.CacheTileDataSource

getCPtr, notifyTilesChanged

Methods inherited from class com.nutiteq.datasources.TileDataSource

getCPtr, getMaxZoom, getMinZoom, getProjection

Methods inherited from class java.lang.Object

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

Constructor Detail

CompressedCacheTileDataSource

public CompressedCacheTileDataSource(long cPtr,
                                     boolean cMemoryOwn)

CompressedCacheTileDataSource

public CompressedCacheTileDataSource(TileDataSource dataSource)

Constructs a CompressedCacheTileDataSource object from tile data source.

Parameters:

dataSource - The datasource to be cached.

Method Detail

getCPtr

public static long getCPtr(CompressedCacheTileDataSource obj)

finalize

protected void finalize()

Overrides:

finalize in class CacheTileDataSource

delete

public void delete()

Overrides:

delete in class CacheTileDataSource

swigDirectorDisconnect

protected void swigDirectorDisconnect()

Overrides:

swigDirectorDisconnect in class CacheTileDataSource

swigReleaseOwnership

public void swigReleaseOwnership()

Overrides:

swigReleaseOwnership in class CacheTileDataSource

swigTakeOwnership

public void swigTakeOwnership()

Overrides:

swigTakeOwnership in class CacheTileDataSource

swigCreatePolymorphicInstance

public static CompressedCacheTileDataSource swigCreatePolymorphicInstance(long cPtr,
                                                                          boolean cMemoryOwn)

Creates a polymorphic instance of the given native object. This is used internally by the SDK.

loadTile

public TileData loadTile(MapTile mapTile)

Description copied from class: TileDataSource

Loads the specified tile.

Overrides:

loadTile in class TileDataSource

Parameters:

mapTile - The tile to load.

Returns:

The tile data. If the tile is not available, null may be returned.

clear

public void clear()

Description copied from class: CacheTileDataSource

Clear the cache.

Overrides:

clear in class CacheTileDataSource

getCapacity

public long getCapacity()

Description copied from class: CacheTileDataSource

Returns the compressed tile cache capacity.

Overrides:

getCapacity in class CacheTileDataSource

Returns:

The compressed tile cache capacity in bytes.

setCapacity

public void setCapacity(long capacity)

Description copied from class: CacheTileDataSource

Sets the cache capacity.

Overrides:

setCapacity in class CacheTileDataSource

swigGetClassName

public java.lang.String swigGetClassName()

Returns the actual class name of this object. This is used internally by the SDK.

Overrides:

swigGetClassName in class CacheTileDataSource

Returns:

The class name of this object.

swigGetDirectorObject

public java.lang.Object swigGetDirectorObject()

Returns the connected director object. This is used internally by the SDK.

Overrides:

swigGetDirectorObject in class CacheTileDataSource

Returns:

The connected director object or null if director is not connected.