String columnName = null;
boolean isId = false;
Class<? extends SqlType> sqlTypeClass = null;
DbId dbId = field.getAnnotation(DbId.class);
if (dbId != null) {
columnName = dbId.value().trim();
sqlTypeClass = dbId.sqlType();
isId = true;
} else {
DbColumn dbColumn = field.getAnnotation(DbColumn.class);
if (dbColumn != null) {
columnName = dbColumn.value().trim();