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Java Source Code / Java Documentation » Development » FastUtil » it.unimi.dsi.fastutil.io

Source Cross Reference

Class Diagram

Java Document (Java Doc)

java.lang .Object

java.io .OutputStream

it.unimi.dsi.fastutil.io .FastByteArrayOutputStream

FastByteArrayOutputStream

public class FastByteArrayOutputStream extends OutputStream (Code)

Simple, fast byte-array output stream that exposes the backing array.

java.io.ByteArrayOutputStream is nice, but to get its content you must generate each time a new object. This doesn't happen here.

This class will automatically enlarge the backing array, doubling its size whenever new space is needed. The FastByteArrayOutputStream.reset() method will mark the content as empty, but will not decrease the capacity: use FastByteArrayOutputStream.trim() for that purpose.
author:
Sebastiano Vigna

Field Summary
final public static int	DEFAULT_INITIAL_CAPACITY The array backing the output stream.
public byte[]	array The array backing the output stream.
public int	length The number of valid bytes in FastByteArrayOutputStream.array .

Constructor Summary
public	FastByteArrayOutputStream() Creates a new array output stream with an initial capacity of FastByteArrayOutputStream.DEFAULT_INITIAL_CAPACITY bytes.
public	FastByteArrayOutputStream(int initialCapacity) Creates a new array output stream with a given initial capacity.
public	FastByteArrayOutputStream(byte[] a) Creates a new array output stream wrapping a given byte array.

Method Summary
public void	reset() Marks this array output stream as empty.
public void	trim() Ensures that the length of the backing array is equal to FastByteArrayOutputStream.length .
public void	write(int b)
public void	write(byte[] b, int off, int len)

Field Detail

DEFAULT_INITIAL_CAPACITY
final public static int DEFAULT_INITIAL_CAPACITY(Code)
	The array backing the output stream.

array
public byte[] array(Code)
	The array backing the output stream.

length
public int length(Code)
	The number of valid bytes in FastByteArrayOutputStream.array .

Constructor Detail

FastByteArrayOutputStream
public FastByteArrayOutputStream()(Code)
	Creates a new array output stream with an initial capacity of FastByteArrayOutputStream.DEFAULT_INITIAL_CAPACITY bytes.

FastByteArrayOutputStream
public FastByteArrayOutputStream(int initialCapacity)(Code)
	Creates a new array output stream with a given initial capacity. Parameters: initialCapacity - the initial length of the backing array.

FastByteArrayOutputStream
public FastByteArrayOutputStream(byte[] a)(Code)
	Creates a new array output stream wrapping a given byte array. Parameters: a - the byte array to wrap.

Method Detail

reset
public void reset()(Code)
	Marks this array output stream as empty.

trim
public void trim()(Code)
	Ensures that the length of the backing array is equal to FastByteArrayOutputStream.length .

write
public void write(int b)(Code)

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

Methods inherited from java.io.OutputStream

public void close() throws IOException(Code)(Java Doc)
public void flush() throws IOException(Code)(Java Doc)
abstract public void write(int b) throws IOException(Code)(Java Doc)
public void write(byte b) throws IOException(Code)(Java Doc)
public void write(byte b, int off, int len) throws IOException(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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