com.streambase.sb

Class DirectByteArrayView

java.lang.Object

com.streambase.sb.ByteArrayView

com.streambase.sb.DirectByteArrayView

All Implemented Interfaces:

CloneableData, Serializable, Cloneable, Comparable<ByteArrayView>

final class DirectByteArrayView
extends ByteArrayView

Constructor Summary

Constructors

Constructor and Description
DirectByteArrayView(byte[] data)
DirectByteArrayView(byte[] data, int off, int len)

Method Summary

Modifier and Type	Method and Description
byte[]	array() Returns a reference to the backing array for this view.
ByteArrayView	copy() Create a new ByteArrayView which wraps a new byte[] containing a copy of this view's data NB: this method copies the underlying data
ByteArrayView	copy(int off, int len) Create a new ByteArrayView which wraps a new byte[] containing a copy of this view's data NB: this method copies the underlying data
byte[]	copyBytes() Create a new byte[] containing a copy of this view's data.
byte[]	copyBytes(int off, int len) Create a new byte[] containing a copy of this view's data within the provided window.
int	length() return the length of this view NB: no data is copied when doing this
int	offset() return the offset into the backing array of this view NB: no data is copied when doing this
ByteArrayView	slice(int off, int len) Create a new ByteArrayView which wraps a portion of this one NB: no data is copied when doing this
ByteBuffer	view() Create a new ByteBuffer which wraps all of this one NB: no data is copied when doing this
ByteBuffer	view(int off, int len) Create a new ByteBuffer which wraps a portion of this one NB: no data is copied when doing this

Methods inherited from class com.streambase.sb.ByteArrayView

asString, clone, compareTo, equals, get, hashCode, makeCopiedView, makeCopiedView, makeView, makeView, makeView, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

DirectByteArrayView

public DirectByteArrayView(byte[] data)

DirectByteArrayView

public DirectByteArrayView(byte[] data,
                           int off,
                           int len)

Method Detail

slice

public ByteArrayView slice(int off,
                           int len)

Description copied from class: ByteArrayView

Create a new ByteArrayView which wraps a portion of this one NB: no data is copied when doing this

Specified by:

slice in class ByteArrayView

Parameters:

off - the initial offset of the window (relative to the current window)

len - the length of the window

Returns:

the new ByteArrayView

view

public ByteBuffer view(int off,
                       int len)

Description copied from class: ByteArrayView

Create a new ByteBuffer which wraps a portion of this one NB: no data is copied when doing this

Specified by:

view in class ByteArrayView

Parameters:

off - the initial offset of the window (relative to the current window)

len - the length of the window

Returns:

a ByteBuffer whose arrayOffset() and limit() are the offset and length provided

view

public ByteBuffer view()

Description copied from class: ByteArrayView

Create a new ByteBuffer which wraps all of this one NB: no data is copied when doing this

Specified by:

view in class ByteArrayView

Returns:

a ByteBuffer whose arrayOffset() and limit() are the offset() and length() of this view

array

public byte[] array()

Description copied from class: ByteArrayView

Returns a reference to the backing array for this view. Note that the view might only be of a part of the returned array: this means you should only access the array between offsets ByteArrayView.offset() and offset() + ByteArrayView.length(). NB: no data is copied when doing this

Specified by:

array in class ByteArrayView

Returns:

the backing array

offset

public int offset()

Description copied from class: ByteArrayView

return the offset into the backing array of this view NB: no data is copied when doing this

Specified by:

offset in class ByteArrayView

Returns:

the offset in bytes

length

public int length()

Description copied from class: ByteArrayView

return the length of this view NB: no data is copied when doing this

Specified by:

length in class ByteArrayView

Returns:

the length in bytes

copy

public ByteArrayView copy(int off,
                          int len)

Description copied from class: ByteArrayView

Create a new ByteArrayView which wraps a new byte[] containing a copy of this view's data NB: this method copies the underlying data

Specified by:

copy in class ByteArrayView

Parameters:

off - the initial offset of the window (relative to the current window)

len - the length of the window

Returns:

the new ByteArrayView

See Also:

if you need a copy of the data in a byte[] indexed from 0 rather than offset()

copy

public ByteArrayView copy()

Description copied from class: ByteArrayView

Create a new ByteArrayView which wraps a new byte[] containing a copy of this view's data NB: this method copies the underlying data

Specified by:

copy in class ByteArrayView

Returns:

the new ByteArrayView

See Also:

if you need a copy of the data in a byte[] indexed from 0 rather than offset()

copyBytes

public byte[] copyBytes(int off,
                        int len)

Description copied from class: ByteArrayView

Create a new byte[] containing a copy of this view's data within the provided window. The returned array may be indexed from 0, unlike ByteArrayView.array(). NB: this method copies the underlying data

Specified by:

copyBytes in class ByteArrayView

Parameters:

off - the initial offset of the window (relative to the current window)

len - the length of the window

Returns:

the new byte[]

copyBytes

public byte[] copyBytes()

Description copied from class: ByteArrayView

Create a new byte[] containing a copy of this view's data. The returned array may be indexed from 0, unlike ByteArrayView.array(). NB: this method copies the underlying data

Specified by:

copyBytes in class ByteArrayView

Returns:

a new byte[] containing a copy of this view's data