Hi,
Here I have a lot of thinking about refactoring
FieldConversion interface to enhance anonymous fields:
1. Since anonymous fields have no corresponding java
fields, their values must come from some other places.
As I know, it can come from
a. referece to other object (foreign key)
b. reference to super object
c. auto-increment (used as oid)
2. Maybe we can refactor FieldConversion to let it to
provide anonymous fields' value too. In this way, a
field in java can be mapped to multiple columns in
table.
3. How is FieldConversion changed? I am trying figure
it out and the following is my rough suggestion and
still need more consideration.
// one java source generates mulitple object
columns
public abstract Object[] javaToSql(Object source)
throws ConversionException;
// multiple columns combine to one java object
public abstract Object sqlToJava(ResultSet rs,
fields[]) throws ConversionException;
Regards,
Rice
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