org.apache.mina.util.byteaccess

类 CompositeByteArrayRelativeReader

java.lang.Object

org.apache.mina.util.byteaccess.CompositeByteArrayRelativeReader

所有已实现的接口:

IoRelativeReader

public class CompositeByteArrayRelativeReader
extends java.lang.Object
implements IoRelativeReader

Provides restricted, relative, read-only access to the bytes in a CompositeByteArray. Using this interface has the advantage that it can be automatically determined when a component ByteArray can no longer be read, and thus components can be automatically freed. This makes it easier to use pooling for underlying ByteArrays.

作者:

Apache MINA Project

字段概要

字段

限定符和类型	字段和说明
protected CompositeByteArray	cba The underlying CompositeByteArray.
protected ByteArray.Cursor	cursor A cursor of the underlying CompositeByteArray.

构造器概要

构造器

构造器和说明
CompositeByteArrayRelativeReader(CompositeByteArray cba, boolean autoFree) Creates a new instance of CompositeByteArrayRelativeReader.

方法概要

方法

限定符和类型	方法和说明
void	append(ByteArray ba) Make a ByteArray available for access at the end of this object.
protected void	cursorPassedFirstComponent() Called whenever the cursor has passed from the cba's first component.
void	free() Free all resources associated with this object.
byte	get()
void	get(IoBuffer bb) places the data starting at current position into the supplied IoBuffer
char	getChar()
double	getDouble()
float	getFloat()
int	getIndex()
int	getInt()
long	getLong()
int	getRemaining()
short	getShort()
boolean	hasRemaining()
int	last()
java.nio.ByteOrder	order()
void	skip(int length) Advances the reader by the given number of bytes.
ByteArray	slice(int length)

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.mina.util.byteaccess.IoRelativeReader

getRemaining, hasRemaining, order

字段详细资料

cba

protected final CompositeByteArray cba

The underlying CompositeByteArray.

cursor

protected final ByteArray.Cursor cursor

A cursor of the underlying CompositeByteArray. This cursor is never moved directly; its position only changes through calls to relative read or write methods.

构造器详细资料

CompositeByteArrayRelativeReader

public CompositeByteArrayRelativeReader(CompositeByteArray cba,
                                boolean autoFree)

Creates a new instance of CompositeByteArrayRelativeReader.

参数:

cba - The backing ByteArray

autoFree - If data should be freed once it has been passed in the list

方法详细资料

cursorPassedFirstComponent

protected void cursorPassedFirstComponent()

Called whenever the cursor has passed from the cba's first component. As the first component is no longer used, this provides a good opportunity for subclasses to perform some action on it (such as freeing it).

skip

public void skip(int length)

Advances the reader by the given number of bytes.

指定者:

skip 在接口中 IoRelativeReader

参数:

length - the number of bytes to skip

slice

public ByteArray slice(int length)

指定者:

slice 在接口中 IoRelativeReader

参数:

length - The number of bytes to get

返回:

an array with a view of part of this array.

get

public byte get()

指定者:

get 在接口中 IoRelativeReader

返回:

the byte at the current position in the buffer

get

public void get(IoBuffer bb)

places the data starting at current position into the supplied IoBuffer

指定者:

get 在接口中 IoRelativeReader

参数:

bb - The IoBuffer that will contain the read bytes

getShort

public short getShort()

指定者:

getShort 在接口中 IoRelativeReader

返回:

a short and advances the reader.

getInt

public int getInt()

指定者:

getInt 在接口中 IoRelativeReader

返回:

an int and advances the reader.

getLong

public long getLong()

指定者:

getLong 在接口中 IoRelativeReader

返回:

a long and advances the reader.

getFloat

public float getFloat()

指定者:

getFloat 在接口中 IoRelativeReader

返回:

a float and advances the reader.

getDouble

public double getDouble()

指定者:

getDouble 在接口中 IoRelativeReader

返回:

a double and advances the reader.

getChar

public char getChar()

指定者:

getChar 在接口中 IoRelativeReader

返回:

a char and advances the reader.

getRemaining

public final int getRemaining()

hasRemaining

public final boolean hasRemaining()

order

public java.nio.ByteOrder order()

append

public final void append(ByteArray ba)

Make a ByteArray available for access at the end of this object.

参数:

ba - The ByteArray to append

free

public final void free()

Free all resources associated with this object.

getIndex

public final int getIndex()

返回:

the index that will be used for the next access.

last

public final int last()

返回:

the index after the last byte that can be accessed.