程序包 cn.taketoday.util

类 ResizableByteArrayOutputStream

java.lang.Object

java.io.OutputStream

java.io.ByteArrayOutputStream

cn.taketoday.util.ResizableByteArrayOutputStream

所有已实现的接口:

Closeable, Flushable, AutoCloseable

public class ResizableByteArrayOutputStream
extends ByteArrayOutputStream

An extension of ByteArrayOutputStream that:

• has public grow(int) and resize(int) methods to get more control over the size of the internal buffer
• has a higher initial capacity (256) by default

this class has been superseded by FastByteArrayOutputStream for internal use where no assignability to ByteArrayOutputStream is needed (since FastByteArrayOutputStream is more efficient with buffer resize management but doesn't extend the standard ByteArrayOutputStream).

从以下版本开始:

4.0

作者:

Brian Clozel, Juergen Hoeller, TODAY 2021/8/21 01:19

另请参阅:

• resize(int)
• FastByteArrayOutputStream

字段概要

字段

修饰符和类型	字段	说明
private static final int	DEFAULT_INITIAL_CAPACITY

从类继承的字段 java.io.ByteArrayOutputStream

buf, count

构造器概要

构造器

构造器	说明
ResizableByteArrayOutputStream()	Create a new ResizableByteArrayOutputStream with the default initial capacity of 256 bytes.
ResizableByteArrayOutputStream(int initialCapacity)	Create a new ResizableByteArrayOutputStream with the specified initial capacity.

方法概要

修饰符和类型	方法	说明
int	capacity()	Return the current size of this stream's internal buffer.
void	grow(int additionalCapacity)	Grow the internal buffer size.
void	resize(int targetCapacity)	Resize the internal buffer size to a specified capacity.

从类继承的方法 java.io.ByteArrayOutputStream

close, reset, size, toByteArray, toString, toString, toString, toString, write, write, writeBytes, writeTo

从类继承的方法 java.io.OutputStream

flush, nullOutputStream, write

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

private static final int DEFAULT_INITIAL_CAPACITY

另请参阅:

• 常量字段值

构造器详细资料

ResizableByteArrayOutputStream

public ResizableByteArrayOutputStream()

Create a new ResizableByteArrayOutputStream with the default initial capacity of 256 bytes.

ResizableByteArrayOutputStream

public ResizableByteArrayOutputStream(int initialCapacity)

Create a new ResizableByteArrayOutputStream with the specified initial capacity.

参数:

initialCapacity - the initial buffer size in bytes

方法详细资料

resize

public void resize(int targetCapacity)

Resize the internal buffer size to a specified capacity.

参数:

targetCapacity - the desired size of the buffer

抛出:

IllegalArgumentException - if the given capacity is smaller than the actual size of the content stored in the buffer already

另请参阅:

• ByteArrayOutputStream.size()

grow

public void grow(int additionalCapacity)

Grow the internal buffer size.

参数:

additionalCapacity - the number of bytes to add to the current buffer size

另请参阅:

• ByteArrayOutputStream.size()

capacity

public int capacity()

Return the current size of this stream's internal buffer.