Is there a way to extract primary key(or ROWID) using NamedParameterJdbcTemplate and GeneratedKeyHolder?

Question

I am trying to extract ROWID or the primary key using Spring's NamedParameterJdbcTemplate and GeneratedKeyHolder.

I am trying to do something like this.

MapSqlParameterSource parameters = new MapSqlParameterSource()
                .addValue("param1", value1)
                .addValue("param2", value2);
KeyHolder keyHolder = new GeneratedKeyHolder();
namedParameterJdbcTemplate.update("INSERT INTO TABLE(ID, col1, col2)"
                + "VALUES(TABLE.TABLE_SEQ.NEXTVAL, :param1, :param2)",
                parameters, keyHolder);

After executing above query when I try to do keyHolder.getKey().longValue() it is throwing below exception.

HTTP Status 500 - Request processing failed; nested exception is org.springframework.dao.DataRetrievalFailureException: The generated key is not of a supported numeric type. Unable to cast [oracle.sql.ROWID] to [java.lang.Number]

When I went through this http://docs.oracle.com/cd/B28359_01/java.111/b31224/datacc.htm I understand (i hope i did) that ojdbc is not mapping oracle RowId to java RowId.

Can any one suggest is there any way to extract the key? (Yes it can be done using PreparedStatement but it is making my code bit ugly to read and manipulate on some conditions). Your suggestions are much appreciated.

Answer 1

You have to use this

namedParameterJdbcTemplate.update("INSERT INTO TABLE(ID, col1, col2)"
            + "VALUES(TABLE.TABLE_SEQ.NEXTVAL, :param1, :param2)",
            parameters, keyHolder, new String[]{"ID"});

Answer 2

Here is a fully working example: Assuming Database is Oracle and column name which store generated Id is "GENERATED_ID" ( Can be any name)

       public Integer insertRecordReturnGeneratedId(final MyObject obj)
        {
        final String INSERT_QUERY = "INSERT INTO MY_TABLE  VALUES(GENERATED_ID_SEQ.NEXTVAL, :param1, :param2)";
        try
            {
                MapSqlParameterSource parameters = new MapSqlParameterSource().addValue( "param1", obj.getField1() ).addValue( "param2",  obj.getField1() ) ;
                final KeyHolder holder = new GeneratedKeyHolder();
                this.namedParameterJdbcTemplate.update( INSERT_QUERY, parameters, holder, new String[] {"GENERATED_ID" } );
                Number generatedId = holder.getKey();
               // Note: USING holder.getKey("GENERATED_ID") IS ok TOO.
                return generatedId.intValue();
            }
            catch( DataAccessException dataAccessException )
            {
    }
    }