code for addAll?
code for Thing.getThings()?
struts.xml action config for mapBackedUIsaveList?
thanks,
Martin
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> Date: Tue, 16 Jun 2009 09:10:10 -0700
> From: stanl...@gmail.com
> To: user@struts.apache.org
> Subject: Mapped back UI and #status.index driven names
>
>
> How is that for a subject line? I always wonder what I would search for
> myself :working:
>
> I had a guy tell me that a struts web tag was generating an absurd number of
> method calls on his action/model. After carefully considering his scenario,
> I was able to experiment using the files below. When the page is loaded a
> single call is made to the getThings() which returns one instance of Thing.
> However, when the submit is clicked, the getThings() is called 33 times!
> Before I bury my head in code, can anyone see why this might be the case?
> The Parameters interceptor is in the stack one time and the generated HTML
> is generating this single parameter:
>
> <input type="text" name="things[0].name" value="foo"
> id="mapBackedUIsaveList_things_0__name"/>
>
>
>
> Action:
>
> public class ListAction extends BaseAction {
>
> private static List<Thing> things;
> public List<Thing> getThings() {
> if (things == null) {
> things = new ArrayList();
> things.addAll(Thing.getThings());
> }
> return things;
> }
>
> public void setThings(List<Thing> things) {
> this.things = things;
> }
> public String list() throws Exception {
> return SUCCESS;
> }
> public String saveList() throws Exception {
> return SUCCESS;
> }
> }
>
> Page:
>
> <s:form action="mapBackedUIsaveList">
> <table>
> <tr>
> <td>
> Name
> </td>
> </tr>
> <s:iterator value="things" status="status">
> <tr>
> <td>
>
> </td>
> <td>
> <s:textfield
> name="things[%{#status.index}].name"
> value="%{name}" />
> </td>
> <td>
>
> </td>
> </tr>
> </s:iterator>
> </table>
> <s:submit />
> </s:form>
>
> Bean:
>
> public class Thing {
>
> private String name;
>
> get/set
>
> }
> --
> View this message in context:
> http://www.nabble.com/Mapped-back-UI-and--status.index-driven-names-tp24057659p24057659.html
> Sent from the Struts - User mailing list archive at Nabble.com.
>
>
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