cn.sexycode.util.core.io.buffer

类 DefaultDataBufferFactory

java.lang.Object

cn.sexycode.util.core.io.buffer.DefaultDataBufferFactory

所有已实现的接口:

DataBufferFactory

public class DefaultDataBufferFactory
extends Object
implements DataBufferFactory

Default implementation of the DataBufferFactory interface. Allows for specification of the default initial capacity at construction time, as well as whether heap-based or direct buffers are to be preferred.

从以下版本开始:

5.0

作者:

Arjen Poutsma

字段概要

字段

限定符和类型	字段和说明
static int	DEFAULT_INITIAL_CAPACITY The default capacity when none is specified.

构造器概要

构造器

构造器和说明
DefaultDataBufferFactory() Creates a new DefaultDataBufferFactory with default settings.
DefaultDataBufferFactory(boolean preferDirect) Creates a new DefaultDataBufferFactory, indicating whether direct buffers should be created by allocateBuffer() and allocateBuffer(int).
DefaultDataBufferFactory(boolean preferDirect, int defaultInitialCapacity) Creates a new DefaultDataBufferFactory, indicating whether direct buffers should be created by allocateBuffer() and allocateBuffer(int), and what the capacity is to be used for allocateBuffer().

方法概要

限定符和类型	方法和说明
DefaultDataBuffer	allocateBuffer() Allocate a data buffer of a default initial capacity.
DefaultDataBuffer	allocateBuffer(int initialCapacity) Allocate a data buffer of the given initial capacity.
DefaultDataBuffer	join(List<? extends DataBuffer> dataBuffers) Return a new DataBuffer composed of the dataBuffers elements joined together.
String	toString()
DefaultDataBuffer	wrap(byte[] bytes) Wrap the given byte array in a DataBuffer.
DefaultDataBuffer	wrap(ByteBuffer byteBuffer) Wrap the given ByteBuffer in a DataBuffer.

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_INITIAL_CAPACITY

public static final int DEFAULT_INITIAL_CAPACITY

The default capacity when none is specified.

另请参阅:

DefaultDataBufferFactory(), DefaultDataBufferFactory(boolean), 常量字段值

构造器详细资料

DefaultDataBufferFactory

public DefaultDataBufferFactory()

Creates a new DefaultDataBufferFactory with default settings.

DefaultDataBufferFactory

public DefaultDataBufferFactory(boolean preferDirect)

Creates a new DefaultDataBufferFactory, indicating whether direct buffers should be created by allocateBuffer() and allocateBuffer(int).

参数:

preferDirect - true if direct buffers are to be preferred; false otherwise

DefaultDataBufferFactory

public DefaultDataBufferFactory(boolean preferDirect,
                                int defaultInitialCapacity)

Creates a new DefaultDataBufferFactory, indicating whether direct buffers should be created by allocateBuffer() and allocateBuffer(int), and what the capacity is to be used for allocateBuffer().

参数:

preferDirect - true if direct buffers are to be preferred; false otherwise

方法详细资料

allocateBuffer

public DefaultDataBuffer allocateBuffer()

从接口复制的说明: DataBufferFactory

Allocate a data buffer of a default initial capacity. Depending on the underlying implementation and its configuration, this will be heap-based or direct buffer.

指定者:

allocateBuffer 在接口中 DataBufferFactory

返回:

the allocated buffer

allocateBuffer

public DefaultDataBuffer allocateBuffer(int initialCapacity)

从接口复制的说明: DataBufferFactory

Allocate a data buffer of the given initial capacity. Depending on the underlying implementation and its configuration, this will be heap-based or direct buffer.

指定者:

allocateBuffer 在接口中 DataBufferFactory

参数:

initialCapacity - the initial capacity of the buffer to allocate

返回:

the allocated buffer

wrap

public DefaultDataBuffer wrap(ByteBuffer byteBuffer)

从接口复制的说明: DataBufferFactory

Wrap the given ByteBuffer in a DataBuffer. Unlike allocating, wrapping does not use new memory.

指定者:

wrap 在接口中 DataBufferFactory

参数:

byteBuffer - the NIO byte buffer to wrap

返回:

the wrapped buffer

wrap

public DefaultDataBuffer wrap(byte[] bytes)

从接口复制的说明: DataBufferFactory

Wrap the given byte array in a DataBuffer. Unlike allocating, wrapping does not use new memory.

指定者:

wrap 在接口中 DataBufferFactory

参数:

bytes - the byte array to wrap

返回:

the wrapped buffer

join

public DefaultDataBuffer join(List<? extends DataBuffer> dataBuffers)

Return a new DataBuffer composed of the dataBuffers elements joined together. Depending on the implementation, the returned buffer may be a single buffer containing all data of the provided buffers, or it may be a true composite that contains references to the buffers.

Note that the given data buffers do not have to be released, as they are released as part of the returned composite.

This implementation creates a single DefaultDataBuffer to contain the data in dataBuffers.

指定者:

join 在接口中 DataBufferFactory

参数:

dataBuffers - the data buffers to be composed

返回:

a buffer that is composed from the dataBuffers argument

toString

public String toString()

覆盖:

toString 在类中 Object