java.nio
Class FloatArrayBuffer

java.lang.Object
  java.nio.Buffer
      java.nio.FloatBuffer
          java.nio.FloatArrayBuffer

All Implemented Interfaces:

Comparable<FloatBuffer>

Direct Known Subclasses:

ReadOnlyFloatArrayBuffer, ReadWriteFloatArrayBuffer

abstract class FloatArrayBuffer
extends FloatBuffer

FloatArrayBuffer, ReadWriteFloatArrayBuffer and ReadOnlyFloatArrayBuffer compose the implementation of array based float buffers.

FloatArrayBuffer implements all the shared readonly methods and is extended by the other two classes.

All methods are marked final for runtime performance.

Field Summary

protected float[]	backingArray
protected int	offset

Fields inherited from class java.nio.Buffer

_elementSizeShift, capacity, limit, mark, position, UNSET_MARK

Constructor Summary

FloatArrayBuffer(float[] array)

FloatArrayBuffer(int capacity)

FloatArrayBuffer(int capacity, float[] backingArray, int offset)

Method Summary

float	get() Returns the float at the current position and increase the position by 1.
FloatBuffer	get(float[] dest, int off, int len) Reads floats from the current position into the specified float array, starting from the specified offset, and increase the position by the number of floats read.
float	get(int index) Returns a float at the specified index, and the position is not changed.
boolean	isDirect() Returns true if this buffer is direct.
ByteOrder	order() Returns the byte order used by this buffer when converting floats from/to bytes.

Methods inherited from class java.nio.FloatBuffer

_array, _arrayOffset, allocate, array, arrayOffset, asReadOnlyBuffer, compact, compareTo, duplicate, equals, get, hasArray, hashCode, protectedArray, protectedArrayOffset, protectedHasArray, put, put, put, put, put, slice, toString, wrap, wrap

Methods inherited from class java.nio.Buffer

capacity, clear, flip, hasRemaining, isReadOnly, limit, limit, mark, position, position, remaining, reset, rewind

Methods inherited from class java.lang.Object

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

Field Detail

backingArray

protected final float[] backingArray

offset

protected final int offset

Constructor Detail

FloatArrayBuffer

FloatArrayBuffer(float[] array)

FloatArrayBuffer

FloatArrayBuffer(int capacity)

FloatArrayBuffer

FloatArrayBuffer(int capacity,
                 float[] backingArray,
                 int offset)

Method Detail

get

public final float get()

Description copied from class: FloatBuffer

Returns the float at the current position and increase the position by 1.

Specified by:

get in class FloatBuffer

Returns:

The float at the current position.

get

public final float get(int index)

Description copied from class: FloatBuffer

Returns a float at the specified index, and the position is not changed.

Specified by:

get in class FloatBuffer

Parameters:

index - The index, must be no less than zero and less than limit

Returns:

A float at the specified index.

get

public final FloatBuffer get(float[] dest,
                             int off,
                             int len)

Description copied from class: FloatBuffer

Reads floats from the current position into the specified float array, starting from the specified offset, and increase the position by the number of floats read.

Overrides:

get in class FloatBuffer

Parameters:

dest - The target float array

off - The offset of the float array, must be no less than zero and no greater than dest.length

len - The number of floats to read, must be no less than zero and no greater than dest.length - off

Returns:

This buffer

isDirect

public final boolean isDirect()

Description copied from class: FloatBuffer

Returns true if this buffer is direct.

A direct buffer will try its best to take advantage of native memory APIs and it may not stay in java heap, thus not affected by GC.

A float buffer is direct, if it is based on a byte buffer and the byte buffer is direct.

Specified by:

isDirect in class FloatBuffer

Returns:

True if this buffer is direct.

order

public final ByteOrder order()

Description copied from class: FloatBuffer

Returns the byte order used by this buffer when converting floats from/to bytes.

If this buffer is not based on a byte buffer, then always return the platform's native byte order.

Specified by:

order in class FloatBuffer

Returns:

The byte order used by this buffer when converting floats from/to bytes.