Package org.apache.http.nio.util

Class ExpandableBuffer

java.lang.Object

org.apache.http.nio.util.ExpandableBuffer

All Implemented Interfaces:

BufferInfo, BufferInfo

Direct Known Subclasses:

SessionInputBufferImpl, SessionOutputBufferImpl, SharedInputBuffer, SharedOutputBuffer, SimpleInputBuffer, SimpleOutputBuffer

public class ExpandableBuffer
extends Object
implements BufferInfo, BufferInfo

A buffer that expand its capacity on demand using ByteBufferAllocator interface. Internally, this class is backed by an instance of ByteBuffer.

This class is not thread safe.

Since:

4.0

Field Summary

Fields

Modifier and Type	Field	Description
static final int	INPUT_MODE
static final int	OUTPUT_MODE

Constructor Summary

Constructors

Constructor	Description
ExpandableBuffer(int buffersize, ByteBufferAllocator allocator)	Allocates buffer of the given size using the given allocator.

Method Summary

Modifier and Type	Method	Description
int	available()	Returns available capacity of this buffer.
int	capacity()	Returns the total capacity of this buffer.
boolean	hasData()	Determines if the buffer contains data.
int	length()	Returns the length of this buffer.
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

INPUT_MODE

public static final int INPUT_MODE

See Also:

• Constant Field Values

OUTPUT_MODE

public static final int OUTPUT_MODE

See Also:

• Constant Field Values

Constructor Details

ExpandableBuffer

public ExpandableBuffer(int buffersize,
 ByteBufferAllocator allocator)

Allocates buffer of the given size using the given allocator.

Parameters:

buffersize - the buffer size.

allocator - allocator to be used to allocate ByteBuffers.

Method Details

capacity

public int capacity()

Returns the total capacity of this buffer.

Specified by:

capacity in interface BufferInfo

Specified by:

capacity in interface BufferInfo

Returns:

total capacity.

hasData

public boolean hasData()

Determines if the buffer contains data.

Returns:

true if there is data in the buffer, false otherwise.

length

public int length()

Returns the length of this buffer.

Specified by:

length in interface BufferInfo

Specified by:

length in interface BufferInfo

Returns:

buffer length.

available

public int available()

Returns available capacity of this buffer.

Specified by:

available in interface BufferInfo

Specified by:

available in interface BufferInfo

Returns:

buffer length.

toString

public String toString()

Overrides:

toString in class Object