Once the JCM is loaded, it gets control whenever an Open ServerConnect program receives a client request containing TDSCHAR or TDSVARYCHAR data. TDSCHAR and TDSVARYCHAR are the datatypes used to represent Japanese characters in workstation character sets. The JCM converts the workstation Japanese characters to the character set used on the mainframe. Once mainframe processing is completed, the JCM converts results back to the original workstation character set before returning them to the client.
