java.io.BufferedOutputStream Maven / Gradle / Ivy
/*
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may also be used to produce "compilation stubs," which allow
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stub files, must be accompanied by this notice in its entirety.
This work corresponds to the API signatures of JSR 219: Foundation
Profile 1.1. In the event of a discrepency between this work and the
JSR 219 specification, which is available at
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*/
package java.io;
/**
* The class implements a buffered output stream. By setting up such
* an output stream, an application can write bytes to the underlying
* output stream without necessarily causing a call to the underlying
* system for each byte written.
*
* @author Arthur van Hoff
* @version 1.27, 02/02/00
* @since JDK1.0
*/
public class BufferedOutputStream extends FilterOutputStream
{
/**
* The internal buffer where data is stored.
*/
protected byte[] buf;
/**
* The number of valid bytes in the buffer. This value is always
* in the range 0 through buf.length; elements
* buf[0] through buf[count-1] contain valid
* byte data.
*/
protected int count;
/**
* Creates a new buffered output stream to write data to the
* specified underlying output stream with a default 512-byte
* buffer size.
*
* @param out the underlying output stream.
*/
public BufferedOutputStream(OutputStream out) {
super(out);
}
/**
* Creates a new buffered output stream to write data to the
* specified underlying output stream with the specified buffer
* size.
*
* @param out the underlying output stream.
* @param size the buffer size.
* @exception IllegalArgumentException if size <= 0.
*/
public BufferedOutputStream(OutputStream out, int size) {
super(out);
}
/**
* Writes the specified byte to this buffered output stream.
*
* @param b the byte to be written.
* @exception IOException if an I/O error occurs.
*/
public synchronized void write(int b) throws IOException { }
/**
* Writes len bytes from the specified byte array
* starting at offset off to this buffered output stream.
*
*
Ordinarily this method stores bytes from the given array into this
* stream's buffer, flushing the buffer to the underlying output stream as
* needed. If the requested length is at least as large as this stream's
* buffer, however, then this method will flush the buffer and write the
* bytes directly to the underlying output stream. Thus redundant
* BufferedOutputStreams will not copy data unnecessarily.
*
* @param b the data.
* @param off the start offset in the data.
* @param len the number of bytes to write.
* @exception IOException if an I/O error occurs.
*/
public synchronized void write(byte[] b, int off, int len)
throws IOException
{ }
/**
* Flushes this buffered output stream. This forces any buffered
* output bytes to be written out to the underlying output stream.
*
* @exception IOException if an I/O error occurs.
* @see java.io.FilterOutputStream#out
*/
public synchronized void flush() throws IOException { }
}