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

Field Summary

protected Object[]	intersectingObjectKeys
protected TileKey	tileKey

Constructor Summary

SurfaceObjectTileBuilder.SurfaceObjectTileStateKey(DrawContext dc, SurfaceObjectTileBuilder.SurfaceObjectTile tile)
Construsts a tile state key for the specified surface object tile.

Method Summary

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

SurfaceObjectTileBuilder.SurfaceObjectTileStateKey

public SurfaceObjectTileBuilder.SurfaceObjectTileStateKey(DrawContext dc,
                                                          SurfaceObjectTileBuilder.SurfaceObjectTile tile)

Construsts a tile state key for the specified surface object 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