Beispiel #1
0
 /*
 ** Name: SqlChar
 **
 ** Description:
 **	Class constructor for variable length byte strings.
 **	Data value is initially NULL.
 **
 ** Input:
 **	charSet		Character-set of byte strings.
 **
 ** Output:
 **	None.
 **
 ** Returns:
 **	None.
 **
 ** History:
 **	 5-Sep-03 (gordy)
 **	    Created.
 **	 1-Dec-03 (gordy)
 **	    Adapted to new super class.
 */
 public SqlChar(CharSet charSet)
     : base(charSet)
 {
 }
Beispiel #2
0
 /*
 ** Name: SqlChar
 **
 ** Description:
 **	Class constructor for fixed length byte strings.
 **	Size limit determines capacity and length.  Data
 **	value is initially NULL.
 **
 ** Input:
 **	charSet		Character-set of byte strings
 **	size		The fixed string length.
 **
 ** Output:
 **	None.
 **
 ** Returns:
 **	None.
 **
 ** History:
 **	 5-Sep-03 (gordy)
 **	    Created.
 **	 1-Dec-03 (gordy)
 **	    Adapted to new super class.
 */
 public SqlChar(CharSet charSet, int size)
     : base(charSet, size)
 {
     ensure(size);
 }
Beispiel #3
0
 /*
 ** Name: SqlLongChar
 **
 ** Description:
 **	Class constructor.  Data value is initially NULL.
 **	Defines a SqlStream event listener for stream
 **	closure event notification.
 **
 ** Input:
 **	charSet		Character-set of byte stream.
 **	listener	Stream listener.
 **
 ** Output:
 **	None.
 **
 ** Returns:
 **	None.
 **
 ** History:
 **	12-Sep-03 (gordy)
 **	    Created.
 */
 internal SqlLongChar( CharSet charSet, IStreamListener listener )
     : base(listener)
 {
     this.charSet = charSet;
 }
Beispiel #4
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        /*
        ** Name: readString
        **
        ** Description:
        **	Read a string from the input stream.  The string is treated
        **	as an atomic value and the entire requested length must be
        **	available.  The input bytes are converted to Unicode using
        **	the character encoding provided.  Strings which are split
        **	must be read as byte arrays.
        **
        ** Input:
        **	length  	Number of bytes in input string.
        **	char_set	Character encoding for conversion.
        **
        ** Output:
        **	None.
        **
        ** Returns:
        **	String	    String value from input stream.
        **
        ** History:
        **	16-Jun-99 (gordy)
        **	    Created.
        **	22-Sep-99 (gordy)
        **	    Added character set/encoding.*/
        /// <summary>
        /// Read a string from the input stream.  The string is treated
        /// as an atomic value and the entire requested length must be
        /// available.  The input bytes are converted to Unicode using
        /// the character encoding provided.  Strings which are split
        /// must be read as byte arrays.
        /// </summary>
        /// <param name="length">Number of bytes in input string.</param>
        /// <param name="char_set">Character encoding for conversion.</param>
        /// <returns>String value from input stream.</returns>
        public virtual String readString(int length, CharSet char_set)
        {
            String str;
            need(length, true);

            try { str = char_set.getString( buffer, data_ptr, length ); }
            catch( Exception ex )
            {
                throw SqlEx.get( ERR_GC401E_CHAR_ENCODE, ex ); // Should not happen!
            }

            data_ptr += length;
            return (str);
        }
Beispiel #5
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 /*
 ** Name: SqlVarChar
 **
 ** Description:
 **	Class constructor for limited length byte strings.
 **	Data value is initially NULL.
 **
 ** Input:
 **	charSet		Character-set of byte strings
 **	size		The maximum string length.
 **
 ** Output:
 **	None.
 **
 ** Returns:
 **	None.
 **
 ** History:
 **	 5-Sep-03 (gordy)
 **	    Created.
 **	 1-Dec-03 (gordy)
 **	    Adapted to new super class.
 */
 public SqlVarChar( CharSet charSet, int size )
     : this(charSet)
 {
     limit = size;
 }
Beispiel #6
0
 /*
 ** Name: SqlLongChar
 **
 ** Description:
 **	Class constructor.  Data value is initially NULL.
 **
 ** Input:
 **	charSet		Character-set of byte stream.
 **
 ** Output:
 **	None.
 **
 ** Returns:
 **	None.
 **
 ** History:
 **	12-Sep-03 (gordy)
 **	    Created.
 */
 public SqlLongChar( CharSet charSet )
     : base()
 {
     this.charSet = charSet;
 }
Beispiel #7
0
 /*
 ** Name: SqlVarChar
 **
 ** Description:
 **	Class constructor for variable length byte strings.
 **	Data value is initially NULL.
 **
 ** Input:
 **	charSet		Character-set of byte strings
 **
 ** Output:
 **	None.
 **
 ** Returns:
 **	None.
 **
 ** History:
 **	 1-Dec-03 (gordy)
 **	    Created.
 */
 public SqlVarChar( CharSet charSet )
     : base(true)
 {
     this.charSet = charSet;
 }
Beispiel #8
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 /*
 ** Name: setCharSet
 **
 ** Description:
 **	Set the CharSet used to encode strings for the connection.
 **
 ** Input:
 **	char_set	CharSet to be used.
 **
 ** Output:
 **	None.
 **
 ** Returns:
 **	void
 **
 ** History:
 **	 3-Jul-06 (gordy)
 **	    Created.
 */
 public void setCharSet(CharSet char_set)
 {
     this.char_set = char_set;
     return;
 }
Beispiel #9
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        /*
        ** Name: addCharSet
        **
        ** Description:
        **	Maintains character sets in the csInfo array.
        **
        ** Input;
        **	cs	Index of character set in csInfo array.
        **
        ** Output:
        **	None.
        **
        ** Returns:
        **	CharSet	Character set associated with csInfo entry.
        **
        ** History:
        **	26-Dec-02 (gordy)
        **	    Extracted from getCharSet() for common functionality.
        */
        private static CharSet addCharSet( int cs )
        {
            /*
            ** Only one CharSet created for each character set.
            */
            if (csInfo[cs][3] == null)  // if CharSet not built yet
            {
                System.Text.Encoding encoding;

                /*
                ** Is the encoding supported.
                */
                if ((encoding = getEncoding((String) csInfo[cs][1])) == null)
                    throw new System.IO.IOException(
                        "Character set of the database server " +
                        "has no .NET character encoding");

                csInfo[cs][3] =
                    new CharSet(
                        encoding,
                        ((bool)   csInfo[cs][2]),
                        ((string) csInfo[cs][0]),
                        ((string) csInfo[cs][1]));
            }

            return ((CharSet) csInfo[cs][3]);
        }
Beispiel #10
0
 SqlChar(CharSet charSet, int size)
     : base(charSet, size)
 {
     ensure(size);
 }         // SqlChar
Beispiel #11
0
 SqlChar(CharSet charSet)
     : base(charSet)
 {
 }         // SqlChar