I need your help in something similar to what you are doing. candidateVO.address.state.code sets and gets the code. how are you exactly setting/getting the values for "code". I have something like this:- activity.location[i].hrs[i] which needs to be displayed as text boxes and the value passed (after error checks) gets into "hrs" and passed into the database.
>From: "David Boardman" <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: "Struts" <[EMAIL PROTECTED]> >Subject: deep nesting of value objects in a form bean >Date: Mon, 1 Oct 2001 18:39:23 -0500 > >I am looking for some confirmation of the approach I have taken in >developing an ActionForm that represents an Entity bean hierarchy that >nests >several beans deep. > >I have a form bean that I use to update a Candidate entity bean. The >Candidate bean has an Address entity bean associated with it, and the >Address bean contains both a Country entity bean and a State entity bean. >I >have created ValueObjects for each of these entity beans so that, for >instance, I can call CandidateVO.getAddress().getState().getCode() to >retrieve the state code. With the ValueObjects nested in this way I can >simply call the setCandidateVO() on the ActionForm and use nested >properties >in my jsp to interact with the ActionForm. For instance, if the following >field were in the jsp, then >getCandidateVO().getAddress().getState().setCode() would be called when the >form is submitted: > ><html:text property="candidateVO.address.state.code" size="2" >maxlength="2"/> > >I have then planned on writting updateVO() methods on each of the entity >beans that would be used to update the beans from the newly updated >ValueObjects. > >I have 2 questions about this scenario: > >1)From what I ahve read, ValueObjects are supposed to be immutable, >however, >in the scenario above they clearly are not. Is there a way to accomplish >the above scenario without making the ValueObjects mutable. > >2)If one of the attributes of one of my entity beans is not a String, is >there still a way to use nested properties to set that attribute? Or do I >need to create a method that does the type conversion in the ActionForm, >and >then populate the ValueObject back in my Action class? > >thanks, > >Dave > _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp
