public String[] getMatchColumnNames() throws SQLException {

      String []str_temp = new String[strMatchColumns.size()];

      if( strMatchColumns.get(0) == null) {
         throw new SQLException(resBundle.handleGetObject("cachedrowsetimpl.setmatchcols").toString());
      }

      strMatchColumns.copyInto(str_temp);
      return str_temp;
   }
Retrieves the column name as <code>String</code> array
that was set using <code>setMatchColumn(String [])</code>
for this rowset.

@return a <code>String</code> array object that contains the column names
        for the rowset which has this the match columns

@throws SQLException if an error occurs or column name is not set
src/main/java/org/replicadb/rowset/StreamingRowSetImpl.java