Aaron,
That sounds like positive news. If you have a moment I have 2 questions:
1) In the interim what option would you pick... using a constant or
manual sync....
2) I'm sure I can read up on JSR-303 and everything but can you tell me
in a nutshell how it will solve this particular problem... nothing
detailed...
Thanks Again for authoring (IIRC) Stripersist! We plan on leveraging it
and pushing it to its limits!!!
Regards,
--Nikolaos
Aaron Porter wrote:
> Hi Nikolaos,
> No, you're not missing anything. JSR-303 (validation) is on the list for
> the next major version of Stripes. That will really simplify things as
> Hibernate already supports JSR-303. When I get some time I plan on
> working on that but it may be a little while because I haven't really
> had any extra time lately. :-(
>
> Aaron
>
>
> On 05/13/2010 11:43 PM, Nikolaos Giannopoulos wrote:
>
>> Hi,
>>
>> I'm integrating Stripersist w/ JPA, Hibernate and MySQL and have been
>> working with some code from Frederic's great book.
>>
>> Assuming the following shortened class excerpts:
>>
>> @Entity
>> public class Contact extends BaseModel {
>> private String firstName;
>> ...
>>
>> public class ContactFormActionBean {
>> @ValidateNestedProperties( {
>> @Validate(field = "firstName", maxlength = 25),
>> ...
>> @Override
>> public void setContact(Contact contact) {
>> super.setContact(contact);
>> }
>>
>> The above logically results in a Contact table "firstName" column that
>> is varchar(255) which is obviously not ideal and moreover will not be
>> required as the field is never> than 25.
>>
>> Now to make the Contact table "firstName" column varchar(25) vs. the
>> default varchar(255) I add the following @Column annotation and all is well:
>>
>> @Entity
>> public class Contact extends BaseModel {
>> @Column(length=25)
>> private String firstName;
>> ...
>>
>> Except now I have 2 values that I need to keep in sync PER field that is
>> constrained (and typically a high percentage of String fields do not
>> need to be 255 chars).
>>
>> So what to do about this to simplify the duplication issue i.e. the
>> constraints at the Model and Controller? Well the obvious traditional
>> coding choice is something like:
>>
>> @Entity
>> public class Contact extends BaseModel {
>> public static final int FIRST_NAME_LENGTH = 25;
>>
>> @Column(length=Contact.FIRST_NAME_LENGTH)
>> ...
>> private String firstName;
>> ...
>>
>> public class ContactFormActionBean {
>> @ValidateNestedProperties( {
>> @Validate(field = "firstName", maxlength =
>> Contact.FIRST_NAME_LENGTH),
>> ...
>> @Override
>> public void setContact(Contact contact) {
>> super.setContact(contact);
>> }
>>
>> Now this keeps the values in sync but PER each 2 properties I want to
>> keep in sync I am introducing 1 additional variable (constant) to
>> configure. In some ways better but still feels lacking....
>>
>> Is there an easier way to solve this issue such that it better leverages
>> Stripes forte of convention over configuration?
>>
>> Perhaps I am missing something obvious?
>>
>> --Nikolaos
>>
>>
>>
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