add generic accessors to SQLInput, SQLOutput (original) (raw)

Ulf Ulf.Zibis at CoSoCo.de
Sun Jan 13 13:20:29 UTC 2013

Hi,

because bugparade is not working, I post this here :-(

There could be:

public T read() throws SQLException; public void write(T obj) throws SQLException;

Alternatively, maybe readObject(), writeObject() could be re-engineered with generic API.

All other methods then could be deprecated !

E.g. in javax.sql.rowset.serial.SQLInputImpl the code simply could be: (private getNextAttribute() could be dropped)

 // rename Object[] attrib to attribs !!!

 public <T> T readObject() throws SQLException {
     if (++idx >= attribs.length) {
         throw new SQLException("SQLInputImpl exception: Invalid read " +
                                "position");
     }
     Object attrib = attribs[idx];
     lastValueWasNull = attrib == null;
     if (attrib instanceof Struct) {
         ...
         ...
         ...
     }
     return (T)attrib;
 }

-Ulf

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