Hi Thanks for ur replies. But i could not understand what actually is the problem
and how lazy list will solve it. This is the first time i am coming across lazy list. can u explain what actually is the problem and how lazy list wil handle the problem With Regards Partha -----Original Message----- From: Mark Lowe [mailto:[EMAIL PROTECTED] Sent: Thursday, February 26, 2004 8:35 PM To: Struts Users Mailing List Subject: Re: Problem in nested tags- Very Urgent - Please Help Nice one.. For some reason i thought the Factory would involve more than it does, so i shied away from it. Cheers Mark On 26 Feb 2004, at 15:57, Paul, R. Chip 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(Propert >>> y >>> U >>> tils. >>> java:428) >>> at >>> org.apache.commons.beanutils.PropertyUtils.getNestedProperty(Property >>> U >>> 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(RequestProc >>> e >>> s >>> sor.j >>> ava:821) >>> at >>> org.apache.struts.action.RequestProcessor.process(RequestProcessor.ja >>> v >>> 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$ServletInvocationAction.run >>> ( >>> S >>> ervle >>> tStubImpl.jav >>> a:1053) >>> at >>> weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm >>> p >>> l >>> .java >>> :387) >>> at >>> weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28) >>> at >>> weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.ja >>> v >>> a >>> :27) >>> at >>> weblogic.servlet.internal.WebAppServletContext$ServletInvocationActio >>> n >>> . >>> run(W >>> ebAppServletC >>> ontext.java:6316) >>> at >>> weblogic.security.acl.internal.AuthenticatedSubject.doAs(Authenticate >>> d >>> S >>> ubjec >>> t.java:317) >>> at >>> weblogic.security.service.SecurityManager.runAs(SecurityManager.java: >>> 118) >>> at >>> weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe >>> r >>> v >>> letCo >>> ntext.java:36 >>> 22) >>> at >>> weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm >>> p >>> l >>> .java >>> :2569) >>> at >>> weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197) >>> at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170) >>>> >>> 2004-02-26 18:18:40,616 [ExecuteThread: '12' for queue: >>> 'weblogic.kernel.Default'] DEBUG org.apache. struts.util.RequestUtils >>> - Get module name for path >>> /uma/showOrgDetails.do >>> 2004-02-26 18:18:40,616 [ExecuteThread: '12' for queue: >>> 'weblogic.kernel.Default'] DEBUG org.apache. struts.util.RequestUtils >>> - Module name found: /uma 2004-02-26 18:18:40,616 [ExecuteThread: >>> '12' for queue: 'weblogic.kernel.Default'] DEBUG org.apache. >>> struts.action.RequestProcessor - Processing a 'POST' for path >>> '/showOrgDetails' >>> >>> >>> >>> My OrgVO is like this. >>> >>> public class OrgVO { >>> >>> private ArrayList addresses = new ArrayList();//collection of >>> addressVOs >>> >>> /** >>> * Gets ArrayList of AddressVOs >>> * >>> * @return addrVOAL ArrayList a list of Address VO >>> */ >>> public Object[] getAddresses() { >>> >>> System.out.println("getAddrVOAL-->" + addresses); >>> if (addresses != null) { >>> return addresses.toArray(); >>> } else { >>> return null; >>> } >>> >>> } >>> >>> >>> /** >>> * Sets the list of address Valu Object >>> * >>> * @param addrList ArrayList new value of addrVOAL >>> */ >>> public void setAddresses(Object[] addrList) { >>> addresses = new ArrayList(); >>> for (int i = 0;i < addrList.length; i++) { >>> addresses.add(addrList[i]); >>> } >>> } >>> >>> } >>> >>> >>> Can anybody help... >>> >>> Thanks in advance. >>> >>> >>> >>> With Regards >>> >>> Partha >>> >>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: [EMAIL PROTECTED] >>> For additional commands, e-mail: [EMAIL PROTECTED] >>> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
