java.nio
Class ByteBufferAsDoubleBufferB

java.lang.Object
  java.nio.Buffer
      java.nio.DoubleBuffer
          java.nio.ByteBufferAsDoubleBufferB

All Implemented Interfaces:

Comparable

Direct Known Subclasses:

ByteBufferAsDoubleBufferRB

class ByteBufferAsDoubleBufferB

extends DoubleBuffer

Field Summary

protected ByteBuffer	bb
protected int	offset

Fields inherited from class java.nio.DoubleBuffer

hb, isReadOnly

Fields inherited from class java.nio.Buffer

address

Constructor Summary

(package private)	ByteBufferAsDoubleBufferB(ByteBuffer bb)
(package private)	ByteBufferAsDoubleBufferB(ByteBuffer bb, int mark, int pos, int lim, int cap, int off)

Method Summary

DoubleBuffer	asReadOnlyBuffer() Creates a new, read-only double buffer that shares this buffer's content.
DoubleBuffer	compact() Compacts this buffer (optional operation).
DoubleBuffer	duplicate() Creates a new double buffer that shares this buffer's content.
double	get() Relative get method.
double	get(int i) Absolute get method.
boolean	isDirect() Tells whether or not this double buffer is direct.
boolean	isReadOnly() Tells whether or not this buffer is read-only.
protected int	ix(int i)
ByteOrder	order() Retrieves this buffer's byte order.
DoubleBuffer	put(double x) Relative put method (optional operation).
DoubleBuffer	put(int i, double x) Absolute put method (optional operation).
DoubleBuffer	slice() Creates a new double buffer whose content is a shared subsequence of this buffer's content.

Methods inherited from class java.nio.DoubleBuffer

allocate, array, arrayOffset, compareTo, equals, get, get, hasArray, hashCode, put, put, put, toString, wrap, wrap

Methods inherited from class java.nio.Buffer

capacity, checkBounds, checkIndex, checkIndex, clear, flip, hasRemaining, limit, limit, mark, markValue, nextGetIndex, nextGetIndex, nextPutIndex, nextPutIndex, position, position, remaining, reset, rewind

Methods inherited from class java.lang.Object

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

Field Detail

bb

protected final ByteBuffer bb

offset

protected final int offset

Constructor Detail

ByteBufferAsDoubleBufferB

ByteBufferAsDoubleBufferB(ByteBuffer bb)

ByteBufferAsDoubleBufferB

ByteBufferAsDoubleBufferB(ByteBuffer bb,
                          int mark,
                          int pos,
                          int lim,
                          int cap,
                          int off)

Method Detail

slice

public DoubleBuffer slice()

Description copied from class: DoubleBuffer

Creates a new double buffer whose content is a shared subsequence of this buffer's content.

The content of the new buffer will start at this buffer's current position. Changes to this buffer's content will be visible in the new buffer, and vice versa; the two buffers' position, limit, and mark values will be independent.

The new buffer's position will be zero, its capacity and its limit will be the number of doubles remaining in this buffer, and its mark will be undefined. The new buffer will be direct if, and only if, this buffer is direct, and it will be read-only if, and only if, this buffer is read-only.

Specified by:

slice in class DoubleBuffer

Returns:

The new double buffer

duplicate

public DoubleBuffer duplicate()

Description copied from class: DoubleBuffer

Creates a new double buffer that shares this buffer's content.

The content of the new buffer will be that of this buffer. Changes to this buffer's content will be visible in the new buffer, and vice versa; the two buffers' position, limit, and mark values will be independent.

The new buffer's capacity, limit, position, and mark values will be identical to those of this buffer. The new buffer will be direct if, and only if, this buffer is direct, and it will be read-only if, and only if, this buffer is read-only.

Specified by:

duplicate in class DoubleBuffer

Returns:

The new double buffer

asReadOnlyBuffer

public DoubleBuffer asReadOnlyBuffer()

Description copied from class: DoubleBuffer

Creates a new, read-only double buffer that shares this buffer's content.

The content of the new buffer will be that of this buffer. Changes to this buffer's content will be visible in the new buffer; the new buffer itself, however, will be read-only and will not allow the shared content to be modified. The two buffers' position, limit, and mark values will be independent.

The new buffer's capacity, limit, position, and mark values will be identical to those of this buffer.

If this buffer is itself read-only then this method behaves in exactly the same way as the duplicate method.

Specified by:

asReadOnlyBuffer in class DoubleBuffer

Returns:

The new, read-only double buffer

ix

protected int ix(int i)

get

public double get()

Description copied from class: DoubleBuffer

Relative get method. Reads the double at this buffer's current position, and then increments the position.

Specified by:

get in class DoubleBuffer

Returns:

The double at the buffer's current position

get

public double get(int i)

Description copied from class: DoubleBuffer

Absolute get method. Reads the double at the given index.

Specified by:

get in class DoubleBuffer

Parameters:

i - The index from which the double will be read

Returns:

The double at the given index

put

public DoubleBuffer put(double x)

Description copied from class: DoubleBuffer

Relative put method (optional operation).

Writes the given double into this buffer at the current position, and then increments the position.

Specified by:

put in class DoubleBuffer

Parameters:

x - The double to be written

Returns:

This buffer

put

public DoubleBuffer put(int i,
                        double x)

Description copied from class: DoubleBuffer

Absolute put method (optional operation).

Writes the given double into this buffer at the given index.

Specified by:

put in class DoubleBuffer

Parameters:

i - The index at which the double will be written

x - The double value to be written

Returns:

This buffer

compact

public DoubleBuffer compact()

Description copied from class: DoubleBuffer

Compacts this buffer (optional operation).

The doubles between the buffer's current position and its limit, if any, are copied to the beginning of the buffer. That is, the double at index p = position() is copied to index zero, the double at index p + 1 is copied to index one, and so forth until the double at index limit() - 1 is copied to index n = limit() - 1 - p. The buffer's position is then set to n+1 and its limit is set to its capacity. The mark, if defined, is discarded.

The buffer's position is set to the number of doubles copied, rather than to zero, so that an invocation of this method can be followed immediately by an invocation of another relative put method.

Specified by:

compact in class DoubleBuffer

Returns:

This buffer

isDirect

public boolean isDirect()

Description copied from class: DoubleBuffer

Tells whether or not this double buffer is direct.

Specified by:

isDirect in class DoubleBuffer

Returns:

true if, and only if, this buffer is direct

isReadOnly

public boolean isReadOnly()

Description copied from class: Buffer

Tells whether or not this buffer is read-only.

Specified by:

isReadOnly in class Buffer

Returns:

true if, and only if, this buffer is read-only

order

public ByteOrder order()

Description copied from class: DoubleBuffer

Retrieves this buffer's byte order.

The byte order of a double buffer created by allocation or by wrapping an existing double array is the native order of the underlying hardware. The byte order of a double buffer created as a view of a byte buffer is that of the byte buffer at the moment that the view is created.

Specified by:

order in class DoubleBuffer

Returns:

This buffer's byte order