com.browseengine.bobo.util

Class MutableSparseFloatArray

java.lang.Object

com.browseengine.bobo.util.SparseFloatArray

com.browseengine.bobo.util.MutableSparseFloatArray

public class MutableSparseFloatArray
extends SparseFloatArray

Author:

spackle

Constructor Summary

Constructors

Constructor and Description
MutableSparseFloatArray(float[] floats)

Method Summary

Methods

Modifier and Type	Method and Description
void	condense() An expensive, but necessary, operation to internally conserve space as things grow.
float[]	expand() See superexpand().
float	get(int idx)
boolean	isDirty()
void	set(int idx, float val)

Methods inherited from class java.lang.Object

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

Constructor Detail

MutableSparseFloatArray

public MutableSparseFloatArray(float[] floats)

Method Detail

isDirty

public boolean isDirty()

get

public float get(int idx)

Overrides:

get in class SparseFloatArray

set

public void set(int idx,
       float val)

expand

public float[] expand()

See superexpand(). Future modifications to this may or may not affect values stored in the returned array. Modifications to the returned array, cause this object instance to become unusable, as from this point on all operations are UNDEFINED.

Overrides:

expand in class SparseFloatArray

Returns:

the expanded primitive float array rep. of this.

condense

public void condense()

An expensive, but necessary, operation to internally conserve space as things grow. Might be useful to call outside of the automatic maintenance, when you expect very few new non-zero values, just changes to existing values, in the future. Uses an expanded form of the float array as scratch space in memory, so be careful that you have enough memory, and try doing this one at a time.