The property
isReadOnly indicates
whether the field and related column should be omitted from the default SQL
statements that write to the database or include a FOR UPDATE OF clause. The
default value is
no; but EGL treats the structure field as "read only"
in these situations:
- The property key of the SQL record indicates that the column that
is associated with the record field is a key column; or
- The SQL record part is associated with more than one table; or
- The SQL column name is an expression.