did you take a look at log? did you see any error?
I don't know if it really help, but I usually prefer to initialize the
collection inside the action class directly.
For instance:
private List<Def> defList=new ArrayList<Def>(20);
Such that you gain more control over the chosen implementation, the lenght, etc.
Maurizio Cucchiara
On 28 August 2011 07:45, James Jithin <jame...@gmail.com> wrote:
> I have a Java Object with many other nested Objects and lists of Objects.
> When the request arrives from the client, I see that the Object is populated
> only to a few levels. Is there any configuration that sets this is Struts 2?
> Here is my example.
>
> class MyActionClass extends ActionSupport {
> private Abc abc;
> public Abc getAbc() {
> return abc;
> }
> public void setAbc(Abc abc) {
> this.abc = abc;
> }
> public String populate() {
> MyService myService = new MyService();
> abc = myService.getMyAbc();
> return SUCCESS;
> }
> public String update() {
> MyService myService = new MyService();
> myService.updateAbc(abc);
> return SUCCESS;
> }
> }
>
> class Abc {
> private List<Def> defList;
> private Ghi ghi;
> public void setDefList(List<Def> defList) {
> this.defList = defList;
> }
> public List<Def> getDefList(){
> return defList;
> }
> public void setGhi(Ghi ghi) {
> this.ghi = ghi;
> }
> public Ghi getGhi() {
> return ghi;
> }
> }
>
> class Def {
> private String name;
> private long id;
> public String getName() {
> return name;
> }
> public void setName(String name) {
> this.name = name;
> }
> public long getId() {
> return id;
> }
> public void setId(long id) {
> this.id = id;
> }
> }
>
> class Ghi {
> private List<Def> defList;
> private String ghiName;
>
> public void setDefList(List<Def> defList) {
> this.defList = defList;
> }
> public List<Def> getDefList() {
> return defList;
> }
> public void setGhiName(String ghiName) {
> this.ghiName = ghiName;
> }
> public String getGhiName() {
> return ghiName;
> }
> }
>
> When I call the `populate` method and when send to the jsp, the iteration
> happens good with all the elements. But, when I try to update, i.e. when
> then form is submitted, the `update()` method is called, but the instance
> variable abc does not get populated completely.
>
> I have seen the url which is passed and everything seems to be fine. Let me
> tell you what happens. The url will be something like (splitting with line
> break for easy understanding here),
>
> &abc.defList[0].name=alex
> &abc.defList[0].id=1
> &abc.defList[1].name=bobby
> &abc.defList[1].id=2
> &abc.ghi.ghiName=GHINAME
> &abc.ghi.defList[0].name=Jack
> &abc.ghi.defList[0].id=1
> &abc.ghi.defList[1].name=Jill
> &abc.ghi.defList[1].id=2
>
> In this case, the `defList` inside `abc` and `ghi.ghiName` in `abc` are
> populated with no issues. But the `defList` of `abc.ghi` is not populated.
> Is this a common behavior of Struts 2? Is ther any means by which this can
> be overridden?
>
> - Jim
>
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