jexx.io

类 FastByteArrayOutputStream

java.lang.Object

java.io.OutputStream

jexx.io.FastByteArrayOutputStream

所有已实现的接口:

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

public class FastByteArrayOutputStream
extends java.io.OutputStream

This class implements an OutputStream in which the data is written into a byte array. The buffer automatically grows as data is written to it.

The data can be retrieved using toByteArray() and toString().

Closing a FastByteArrayOutputStream has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.

This is an alternative implementation of the java.io.FastByteArrayOutputStream class. The original implementation only allocates 32 bytes at the beginning. As this class is designed for heavy duty it starts at 1024 bytes. In contrast to the original it doesn't reallocate the whole memory block but allocates additional buffers. This way no buffers need to be garbage collected and the contents don't have to be copied to the new buffer. This class is designed to behave exactly like the original. The only exception is the deprecated java.io.FastByteArrayOutputStream#toString(int) method that has been ignored.

构造器概要

构造器

构造器和说明
FastByteArrayOutputStream() Creates a new byte array OutputStream.
FastByteArrayOutputStream(int size) Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes.

方法概要

限定符和类型	方法和说明
void	close() Closing a FastByteArrayOutputStream has no effect.
void	reset()
int	size()
byte[]	toByteArray()
java.lang.String	toString()
java.lang.String	toString(java.lang.String charset)
void	write(byte[] b, int off, int len)
void	write(int b) Writes single byte.
void	writeTo(java.io.OutputStream out)

从类继承的方法 java.io.OutputStream

flush, write

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

FastByteArrayOutputStream

public FastByteArrayOutputStream()

Creates a new byte array OutputStream. The buffer capacity is initially 1024 bytes, though its size increases if necessary.

FastByteArrayOutputStream

public FastByteArrayOutputStream(int size)

Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes.

参数:

size - the initial size.

抛出:

java.lang.IllegalArgumentException - if size is negative.

方法详细资料

write

public void write(byte[] b,
                  int off,
                  int len)

覆盖:

write 在类中 java.io.OutputStream

另请参阅:

OutputStream.write(byte[], int, int)

write

public void write(int b)

Writes single byte.

指定者:

write 在类中 java.io.OutputStream

size

public int size()

另请参阅:

ByteArrayOutputStream.size()

close

public void close()

Closing a FastByteArrayOutputStream has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.

指定者:

close 在接口中 java.io.Closeable

指定者:

close 在接口中 java.lang.AutoCloseable

覆盖:

close 在类中 java.io.OutputStream

reset

public void reset()

另请参阅:

ByteArrayOutputStream.reset()

writeTo

public void writeTo(java.io.OutputStream out)
             throws java.io.IOException

抛出:

java.io.IOException

另请参阅:

ByteArrayOutputStream.writeTo(OutputStream)

toByteArray

public byte[] toByteArray()

另请参阅:

ByteArrayOutputStream.toByteArray()

toString

public java.lang.String toString()

覆盖:

toString 在类中 java.lang.Object

另请参阅:

ByteArrayOutputStream.toString()

toString

public java.lang.String toString(java.lang.String charset)

另请参阅:

ByteArrayOutputStream.toString(String)