gov.nasa.worldwind.render

Class SurfaceObjectTileBuilder.SurfaceObjectTileStateKey

java.lang.Object

gov.nasa.worldwind.render.SurfaceObjectTileBuilder.SurfaceObjectTileStateKey

All Implemented Interfaces:

Cacheable

Enclosing class:

SurfaceObjectTileBuilder

protected static class SurfaceObjectTileBuilder.SurfaceObjectTileStateKey
extends Object
implements Cacheable

Represents a surface renderable tile's current state. TileStateKey distinguishes the tile's state by comparing the individual state keys of the surface renderables intersecting the tile. This does not retain any references to the surface renderables themselves. Should the tile state key live longer than the surface renderables, the state key does not prevent those objects from being reclaimed by the garbage collector.

Field Summary

Fields

Modifier and Type	Field and Description
protected Object[]	intersectingObjectKeys
protected TileKey	tileKey

Constructor Summary

Constructors

Constructor and Description
SurfaceObjectTileStateKey(DrawContext dc, SurfaceObjectTileBuilder.SurfaceObjectTile tile) Construsts a tile state key for the specified surface renderable tile.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
long	getSizeInBytes() Returns the tile state key's size in bytes.
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Detail

intersectingObjectKeys

protected final Object[] intersectingObjectKeys

tileKey

protected final TileKey tileKey

Constructor Detail

SurfaceObjectTileStateKey

public SurfaceObjectTileStateKey(DrawContext dc,
                                 SurfaceObjectTileBuilder.SurfaceObjectTile tile)

Construsts a tile state key for the specified surface renderable tile.

Parameters:

dc - the draw context the state key is related to.

tile - the tile to construct a state key for.

Method Detail

equals

public boolean equals(Object o)

Overrides:

equals in class Object

getSizeInBytes

public long getSizeInBytes()

Returns the tile state key's size in bytes. The total size of the intersecting object keys, plus the size of the array itself. The tileKey is owned by the SurfaceObjectTile, so we don't include it in the state key's size.

Specified by:

getSizeInBytes in interface Cacheable

Returns:

The state key's size in bytes.

hashCode

public int hashCode()

Overrides:

hashCode in class Object