Using a view-object as a data web bean?

Question

Hi,
When writing JSP pages, I'd like to have a web bean that allows basic data manipulation such as:
- set up a row set - e.g. by specifying a view object and an (optional) where clause;
- navigate this row set (first, next, etc.);
- get or set the values of the attributes of the current row;
- insert, update or delete a row;
- commit or rollback the modifications;
- etc.
This bean should be "silent" - i.e. it would not have to be able to "render" anything - instead, I would use it in <%= bean.method() %> tags, or in <% ...java code... %> sections, in conjunction with other (custom) beans.
I guess I could use a view object - but:
1) How would I have to use it in a JSP context?
2) Or, are there more appropriate objects to do this job?
3) What methods could I use (i.e. where are they documented)?
4) What pitfalls should I be aware of (most notably related to housekeeping after bean use)?
Any information greatly appreciated!
Thanks in advance,
Serge

Answer 1

Hi,
When writing JSP pages, I'd like to have a web bean that allows basic data manipulation such as:
- set up a row set - e.g. by specifying a view object and an (optional) where clause;
- navigate this row set (first, next, etc.);
- get or set the values of the attributes of the current row;
- insert, update or delete a row;
- commit or rollback the modifications;
- etc.
This bean should be "silent" - i.e. it would not have to be able to "render" anything - instead, I would use it in <%= bean.method() %> tags, or in <% ...java code... %> sections, in conjunction with other (custom) beans.
I guess I could use a view object - but:
1) How would I have to use it in a JSP context?
2) Or, are there more appropriate objects to do this job?
3) What methods could I use (i.e. where are they documented)?
4) What pitfalls should I be aware of (most notably related to housekeeping after bean use)?
Any information greatly appreciated!
Thanks in advance,
Serge