File	Doc	Category	Size	Date	Package
Gen_Writer.java	API Doc	J2ME MIDP 2.0	4095	Thu Nov 07 12:02:20 GMT 2002	com.sun.cldc.i18n.j2me

Gen_Writer

• java.lang.Object
  • StreamWriter

Fields Summary
private String	enc Saved encoding string from construction.
private int	id Native handle for conversion routines.
private byte[]	buf Local buffer to write converted characters.
private int	maxByteLen Maximum length of characters in local buffer.

Constructors Summary
Gen_Writer(String enc) Constructor for generic writer. param enc character encoding to use for byte to character conversion. exception ClassNotFoundException is thrown if the conversion class is not available id = Conv.getHandler(enc); if (id == -1) { throw new ClassNotFoundException(); } this.enc = enc; maxByteLen = Conv.getMaxByteLength(id); buf = new byte[maxByteLen];

Methods Summary
public java.io.Writer	open(java.io.OutputStream out, java.lang.String enc) Generic routine to open an OutputStream with a specific character encoding. param out the output stream to process param enc the character encoding for the output stream return Writer instance for converted characters throws UnsupportedEncodingException if encoding is not supported if (!enc.equals(this.enc)) { throw new UnsupportedEncodingException(); } return super.open(out, enc);
public int	sizeOf(char[] cbuf, int off, int len) Get the size of the converted bytes as a Unicode byte array. param cbuf array of bytes to compute size param off offset in the provided buffer param len length of bytes to process return length of converted characters. return Conv.sizeOfUnicodeInByte(id, cbuf, off, len);
public synchronized void	write(int c) Write a single converted character. param c the character to be output exception IOException is thrown if the output stream could not be written with the converted bytes char cbuf[] = {(char)c}; int len = Conv.charToByte(id, cbuf, 0, 1, buf, 0, buf.length); if (len > 0) { out.write(buf, 0, len); }
public synchronized void	write(char[] cbuf, int off, int len) Write a block of converted characters. param cbuf output buffer of characters to convert param off initial offset into the provided buffer param len length of characters in the buffer exception IOException is thrown if the output stream could not be written with the converted bytes int maxlen = len * maxByteLen; if (buf.length < maxlen) { buf = new byte[maxlen]; } len = Conv.charToByte(id, cbuf, off, len, buf, 0, buf.length); if (len > 0) { out.write(buf, 0, len); } if (buf.length > maxByteLen) { buf = new byte[maxByteLen]; }
public synchronized void	write(java.lang.String str, int off, int len) Write a block of converted characters from a string. param str string to convert param off initial offset into the string param len length of characters in the string to process exception IOException is thrown if the output stream could not be written with the converted bytes for (int i = 0; i < len; i++) { write(str.charAt(off + i)); }