org.bson.io

类 BasicOutputBuffer

java.lang.Object

java.io.OutputStream

org.bson.io.OutputBuffer

org.bson.io.BasicOutputBuffer

所有已实现的接口:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable, BsonOutput

public class BasicOutputBuffer
extends OutputBuffer

A BSON output stream that stores the output in a single, un-pooled byte array.

构造器概要

构造器

构造器和说明
BasicOutputBuffer() Construct an instance with a default initial byte array size.
BasicOutputBuffer(int initialSize) Construct an instance with the specified initial byte array size.

方法概要

限定符和类型	方法和说明
void	close()
java.util.List<ByteBuf>	getByteBuffers() Get a list of byte buffers that are prepared to be read from; in other words, whose position is 0 and whose limit is the number of bytes that should read.
byte[]	getInternalBuffer() Gets the internal buffer.
int	getPosition() Gets the current position in the stream.
int	getSize() Gets the current size of the stream in number of bytes.
int	pipe(java.io.OutputStream out) Pipe the contents of this output buffer into the given output stream
void	truncateToPosition(int newPosition) Truncates this stream to the new position.
void	write(byte[] b)
protected void	write(int absolutePosition, int value) Write the specified byte at the specified position.
void	writeByte(int value) Write a single byte to the stream.
void	writeBytes(byte[] bytes, int offset, int length) Writes length bytes from the byte array, starting at offset.

从类继承的方法 org.bson.io.OutputBuffer

size, toByteArray, toString, write, write, writeBytes, writeCString, writeDouble, writeInt, writeInt32, writeInt32, writeInt64, writeLong, writeObjectId, writeString

从类继承的方法 java.io.OutputStream

flush

从类继承的方法 java.lang.Object

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

构造器详细资料

BasicOutputBuffer

public BasicOutputBuffer()

Construct an instance with a default initial byte array size.

BasicOutputBuffer

public BasicOutputBuffer(int initialSize)

Construct an instance with the specified initial byte array size.

参数:

initialSize - the initial size of the byte array

方法详细资料

getInternalBuffer

public byte[] getInternalBuffer()

Gets the internal buffer.

返回:

the internal buffer

从以下版本开始:

3.3

write

public void write(byte[] b)

覆盖:

write 在类中 OutputBuffer

writeBytes

public void writeBytes(byte[] bytes,
                       int offset,
                       int length)

从接口复制的说明: BsonOutput

Writes length bytes from the byte array, starting at offset.

参数:

bytes - the non-null byte array

offset - the offset to start writing from

length - the number of bytes to write

writeByte

public void writeByte(int value)

从接口复制的说明: BsonOutput

Write a single byte to the stream. The byte to be written is the eight low-order bits of the specified value. The 24 high-order bits of the value are ignored.

参数:

value - the value

write

protected void write(int absolutePosition,
                     int value)

从类复制的说明: OutputBuffer

Write the specified byte at the specified position.

指定者:

write 在类中 OutputBuffer

参数:

absolutePosition - the position, which must be greater than equal to 0 and at least 4 less than the stream size

value - the value to write. The 24 high-order bits of the value are ignored.

getPosition

public int getPosition()

从接口复制的说明: BsonOutput

Gets the current position in the stream.

返回:

the current position

getSize

public int getSize()

从接口复制的说明: BsonOutput

Gets the current size of the stream in number of bytes.

返回:

size of data so far

pipe

public int pipe(java.io.OutputStream out)
         throws java.io.IOException

从类复制的说明: OutputBuffer

Pipe the contents of this output buffer into the given output stream

指定者:

pipe 在类中 OutputBuffer

参数:

out - the stream to pipe to

返回:

number of bytes written to the stream

抛出:

java.io.IOException - if the stream throws an exception

truncateToPosition

public void truncateToPosition(int newPosition)

从接口复制的说明: BsonOutput

Truncates this stream to the new position. After this call, both size and position will equal the new position.

指定者:

truncateToPosition 在接口中 BsonOutput

指定者:

truncateToPosition 在类中 OutputBuffer

参数:

newPosition - the new position, which must be greater than or equal to 0 and less than the current size.

getByteBuffers

public java.util.List<ByteBuf> getByteBuffers()

从类复制的说明: OutputBuffer

Get a list of byte buffers that are prepared to be read from; in other words, whose position is 0 and whose limit is the number of bytes that should read.

Note that the byte buffers may be read-only.

指定者:

getByteBuffers 在类中 OutputBuffer

返回:

the non-null list of byte buffers.

close

public void close()

指定者:

close 在接口中 java.io.Closeable

指定者:

close 在接口中 java.lang.AutoCloseable

指定者:

close 在接口中 BsonOutput

覆盖:

close 在类中 OutputBuffer