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/*************************************************************************
/* DataOutput.java -- Interface for writing data from a stream
/*
/* Copyright (c) 1998 by Aaron M. Renn (arenn@urbanophile.com)
/*
/* This program is free software; you can redistribute it and/or modify
/* it under the terms of the GNU Library General Public License as published
/* by the Free Software Foundation, version 2. (see COPYING.LIB)
/*
/* This program is distributed in the hope that it will be useful, but
/* WITHOUT ANY WARRANTY; without even the implied warranty of
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
/* GNU General Public License for more details.
/*
/* You should have received a copy of the GNU Library General Public License
/* along with this program; if not, write to the Free Software Foundation
/* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA
/*************************************************************************/
package java.io;
/**
* This interface is implemented by classes that can wrte data to streams
* from Java primitive types.
*
* @version 0.0
*
* @author Aaron M. Renn (arenn@urbanophile.com)
*/
public interface DataOutput
{
/**
* This method writes a Java boolean value to an output stream
*
* @param value The boolean value to write
*
* @exception IOException If an error occurs
*/
public abstract void
writeBoolean(boolean value) throws IOException;
/*************************************************************************/
/**
* This method writes a Java byte value to an output stream
*
* @param value The int value to write
*
* @exception IOException If an error occurs
*/
public abstract void
writeByte(int value) throws IOException;
/*************************************************************************/
/**
* This method writes a Java char value to an output stream
*
* @param value The char value to write
*
* @exception IOException If an error occurs
*/
public abstract void
writeChar(int value) throws IOException;
/*************************************************************************/
/**
* This method writes a Java int value to an output stream as a 16 bit value
*
* @param value The int value to write as a 16-bit value
*
* @exception IOException If an error occurs
*/
public abstract void
writeShort(int value) throws IOException;
/*************************************************************************/
/**
* This method writes a Java int value to an output stream
*
* @param value The int value to write
*
* @exception IOException If an error occurs
*/
public abstract void
writeInt(int value) throws IOException;
/*************************************************************************/
/**
* This method writes a Java long value to an output stream
*
* @param value The long value to write
*
* @exception IOException If an error occurs
*/
public abstract void
writeLong(long value) throws IOException;
/*************************************************************************/
/**
* This method writes a Java float value to an output stream
*
* @param value The float value to write
*
* @exception IOException If an error occurs
*/
public abstract void
writeFloat(float value) throws IOException;
/*************************************************************************/
/**
* This method writes a Java double value to an output stream
*
* @param value The double value to write
*
* @exception IOException If any other error occurs
*/
public abstract void
writeDouble(double value) throws IOException;
/*************************************************************************/
/**
* This method writes a String to an output stream as an array of bytes
*
* @param value The String to write
*
* @exception IOException If an error occurs
*/
public abstract void
writeBytes(String value) throws IOException;
/*************************************************************************/
/**
* This method writes a String to an output stream as an array of char's
*
* @param value The String to write
*
* @exception IOException If an error occurs
*/
public abstract void
writeChars(String value) throws IOException;
/*************************************************************************/
/**
* This method writes a String to an output stream encoded in
* UTF-8 format.
*
* @param value The String to write
*
* @exception IOException If an error occurs
*/
public abstract void
writeUTF(String value) throws IOException;
/*************************************************************************/
/**
* This method writes an 8-bit value (passed into the method as a Java
* int) to an output stream.
*
* @param value The byte to write to the output stream
*
* @exception IOException If an error occurs
*/
public abstract void
write(int value) throws IOException;
/*************************************************************************/
/**
* This method writes the raw byte array passed in to the output stream.
*
* @param buf The byte array to write
*
* @exception IOException If an error occurs
*/
public abstract void
write(byte[] buf) throws IOException;
/*************************************************************************/
/**
* This method writes raw bytes from the passed array @code{buf} starting
* @code{offset} bytes into the buffer. The number of bytes written will be
* exactly @code{len}.
*
* @param buf The buffer from which to write the data
* @param offset The offset into the buffer to start writing data from
* @param len The number of bytes to write from the buffer to the output stream
*
* @exception IOException If any other error occurs
*/
public abstract void
write(byte[] buf, int offset, int len) throws IOException;
} // interface DataOutput
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