public JwSqlSelect getSelectCount() {
   JwSqlSelect st = createSelect();
   st.selectCount();
   st.from(TABLE, ALIAS);
   return st;
 }
 /** Return the maximum ID; return null if the table is empty. */
 public Integer getMaximumId() {
   JwSqlSelect st = createSelect();
   st.selectMaximum(ALIAS, ID);
   st.from(TABLE, ALIAS);
   return composeFirstInteger(st);
 }
 public JwSqlSelect getSelect() {
   JwSqlSelect st = createSelect();
   populateSelectColumnsToCompose(st, ALIAS);
   st.from(TABLE, ALIAS);
   return st;
 }
 public JwList<Integer> getAllIds() {
   JwSqlSelect st = createSelect();
   st.selectInteger(ALIAS, ID);
   st.from(TABLE, ALIAS);
   return composeIntegerList(st);
 }