IIRC, you also need it in reset():
public class LazyListExampleForm extends ActionForm {
private List actionList;
public LazyListExampleForm () {
initLists();
}
public void reset(ActionMapping mapping,
HttpServletRequest request) {
super.reset(mapping, request);
initLists();
}
private void initLists() {
Factory factory = new Factory() {
public Object create() {
return new ActionListBean();
}
};
this.actionList = ListUtils.lazyList(new ArrayList(), factory);
}
// Getter/setters for list omitted
}
- Hubert
--- "Paul, R. Chip" <[EMAIL PROTECTED]> wrote:
> Note: I think this is likely different in current versions of the commons
> collections lib, but this works for the version we are dependent on.
>
> import java.util.ArrayList;
> import java.util.List;
> import org.apache.commons.collections.Factory;
> import org.apache.commons.collections.ListUtils;
> // Nonrelevant imports ommitted
>
> public class LazyListExampleForm extends ActionForm {
> private List actionList;
>
> public LazyListExampleForm ()
> {
> Factory factory = new Factory() {
> public Object create() {
> return new ActionListBean();
> }
> };
> this.actionList = ListUtils.lazyList(new ArrayList(),
> factory);
> }
>
> // Getter/setters for list omitted
> }
>
> -----Original Message-----
> From: Mark Lowe [mailto:[EMAIL PROTECTED]
> Sent: Thursday, February 26, 2004 8:49 AM
> To: Struts Users Mailing List
> Subject: Re: Problem in nested tags- Very Urgent - Please Help
>
>
> wouldn't mind an example of how to use lazy list if you have one.
>
>
> On 26 Feb 2004, at 15:33, Paul, R. Chip wrote:
>
> > Or use the Commons Collections LazyList which handles this problem
> > automatically.
> >
> > -----Original Message-----
> > From: Mark Lowe [mailto:[EMAIL PROTECTED]
> > Sent: Thursday, February 26, 2004 8:09 AM
> > To: Struts Users Mailing List
> > Subject: Re: Problem in nested tags- Very Urgent - Please Help
> >
> >
> > shirish posted this a few times.
> >
> > if you're scoping to request you'll need a while loop in your
> > getFoo(int index) method
> >
> > public class OrgManagementForm extends ActionForm {
> >
> > private List addressList = new ArrayList();
> >
> > public Address getAddress(int index) {
> >
> > while(index >= addressList.size() ) {
> > this.addressList.add( new Address() );
> > }
> >
> > return (Address) addressList.get(index);
> > }
> >
> > bla bla.
> >
> > }
> >
> > look like it could be your problem.
> >
> >
> > On 26 Feb 2004, at 14:57, Parthasarathy Kesavaraj wrote:
> >
> >> I am having an OrganzationVO inside my form-bean.
> >>
> >> The OrganzationVO has a collection of AddressVOs.
> >>
> >> I am using nested tags like this.
> >>
> >>
> >> <nested:nest property = "orgVO">
> >>
> >> <nested:text property="orgID" size="10" maxlength="10"
> >> styleClass="inputmand" tabindex="" />
> >>
> >> <nested:iterate id="addressid" property="addresses" indexId="index">
> >>
> >>
> >> <nested:text property="company1" size="30" maxlength="30"
> >> styleClass="inputmand" tabindex="" />
> >>
> >> </nested:iterate>
> >>
> >> </nested:nest>
> >>
> >> while submitting the form I am getting an exception like this.
> >>
> >>
> >> 2004-02-26 18:17:08,133 [ExecuteThread: '12' for queue:
> >> 'weblogic.kernel.Default'] DEBUG org.apache.
> >> commons.beanutils.BeanUtils -
> >> setProperty([EMAIL PROTECTED], orgVO.a
> >> ddresses[0].company1, [get populated])
> >> getAddrVOAL-->[]
> >> <Feb 26, 2004 6:17:08 PM IST> <Error> <HTTP> <BEA-101017>
> >> <[ServletContext(id=1735147,name=gbs,conte
> >> xt-path=/gbs)] Root cause of ServletException.
> >> java.lang.ArrayIndexOutOfBoundsException
> >> at java.lang.reflect.Array.get(Native Method)
> >> at
> >> org.apache.commons.beanutils.PropertyUtils.getIndexedProperty(Propert
> >> y
> >> U
> >> tils.
> >> java:525)
> >> at
> >> org.apache.commons.beanutils.PropertyUtils.getIndexedProperty(Property
> >> U
> >> tils.
> >> java:428)
> >> at
> >> org.apache.commons.beanutils.PropertyUtils.getNestedProperty(PropertyU
> >> t
> >> ils.j
> >> ava:770)
> >> at
> >> org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.j
> >> a
> >> va:80
> >> 1)
> >> at
> >> org.apache.commons.beanutils.BeanUtils.setProperty(BeanUtils.java:881)
> >> at
> >> org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:808)
> >> at
> >> org.apache.struts.util.RequestUtils.populate(RequestUtils.java:1252)
> >> at
> >> org.apache.struts.action.RequestProcessor.processPopulate(RequestProce
> >> s
> >> sor.j
> >> ava:821)
> >> at
> >> org.apache.struts.action.RequestProcessor.process(RequestProcessor.jav
> >> a
> >> :254)
> >> at
> >> com.puma.gbs.action.RequestProcessor.process(RequestProcessor.java:
> >> 133)
> >> at
> >> org.apache.struts.action.ActionServlet.process(ActionServlet.java:
> >> 1482)
> >> at
> >> org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
> >> at
> >> javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
> >> at
> >> javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> >> at
> >> weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(
> >> S
> >> ervle
> >> tStubImpl.jav
> >> a:1053)
> >> at
> >> weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImp
> >> l
> >> .java
> >> :387)
> >> at
> >> weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
> >> at
> >> weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.jav
> >> a
> >> :27)
> >> at
> >> weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction
> >> .
> >> run(W
> >> ebAppServletC
> >> ontext.java:6316)
> >> at
> >> weblogic.security.acl.internal.AuthenticatedSubject.doAs(Authenticated
> >> S
> >> ubjec
> >> t.java:317)
> >> at
> >> weblogic.security.service.SecurityManager.runAs(SecurityManager.java:
> >> 118)
> >> at
> >> weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSer
> >> v
> >> letCo
> >> ntext.java:36
> >> 22)
> >> at
> >> weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImp
> >> l
> >> .java
> >> :2569)
>
=== message truncated ===
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