Re: Why does struts assign indexedValues from 2nd index.......please help
I can't tell you why the parameters are being passed out-of-sequence (I
would guess they're being shuffled through a HashMap somewhere) but it's
easy to deal with: simply have your setter grow the list as necessary to
accommodate the passed index. Something like this:
public void setFriend(int index, String name) {
while (friends.size() < index) {
friends.add(null); // or "" or whatever
}
friends.put(index, name);
}
HTH,
L.
venkat reddy wrote:
I've tried another example also...
ListForm.java
=
package com.myapp.struts.formbeans;
import org.apache.struts.action.*;
import javax.servlet.http.*;
import java.util.*;
/**
*
* @author Sai
*/
public class ListForm extends ActionForm {
private int size = 3;
private List friends = new ArrayList(size);
public List getFriends( ) {
return friends;
}
public String getFriend(int index) {
if (index >= friends.size( )) {
friends.add(index, new String());
}
return (String) friends.get(index);
}
public void setFriend(int index, String name) {
System.out.println("size: "+friends.size()+"- index:"+index);
}
public void reset(ActionMapping mapping, HttpServletRequest request) {
// prepopulate the list with empty strings
friends = new ArrayList( );
for (int i=0; iList Form Test
Who are your 3 friends:
Friend 1:
Friend 2:
Friend 3:
Friend 3:
Friend 3:
Friend 3:
Friend 3:
Friend 3:
The output while setting the request parameter values is as follows..
size: 3- index:0
size: 3- index:4
size: 3- index:3
size: 3- index:6
size: 3- index:7
size: 3- index:5
size: 3- index:1
size: 3- index:2
We can see here also struts is not settings the parameter values in order (
i mean according to the index ). It's trying to set object at 0 index,
jumping by trying to set at 4 index.
Why is this so??is this problem solved in struts 1.2.9 ( i'm
currently using 1.2.7) ??
Any personal suggestions are also appreciated..
Friends, please help
On Wed, May 7, 2008 at 1:30 AM, venkat reddy <[EMAIL PROTECTED]> wrote:
I wanted to find a way to handle dynamic number of arguments for my
poll-posting form which should be able to handle dynamic number of choice
fields.
So i maintained a list (pollChoices --> java.util.List type) for
maintaining dynamic number of choice fields.
==
PollForm.java
==
package com.myapp.struts.formbeans;
import org.apache.struts.action.*;
import javax.servlet.http.*;
import java.util.*;
import org.apache.commons.lang.*;
/**
*
* @author Sai
*/
public class PollForm extends ActionForm {
private String pollQuestion;
private String numberOfDays;
private ArrayList pollChoices;
/** Creates a new instance of BasicForm */
public PollForm() {
}
public void reset(ActionMapping map, HttpServletRequest req) {
System.out.println("Reset start...");
setPollQuestion("");
setNumberOfDays("");
pollChoices = new ArrayList();
System.out.println("Reset end...");
}
public ActionErrors validate(ActionMapping map, HttpServletRequest req)
{
System.out.println("Validate method...");
ActionErrors errors = new ActionErrors();
if(StringUtils.isBlank(pollQuestion))
errors.add("pollQuestion",new
ActionMessage("errors.required","Poll Question"));
if(StringUtils.isBlank(numberOfDays))
errors.add("numberOfDays",new
ActionMessage("errors.required","Number of days"));
if(pollChoices.size() < 2)
errors.add("pollChoice",new
ActionMessage("errors.required","Atleast two poll choices"));
return errors;
}
public String getPollQuestion() {
return pollQuestion;
}
public void setPollQuestion(String pollQuestion) {
this.pollQuestion = pollQuestion;
}
public String getNumberOfDays() {
return numberOfDays;
}
public void setNumberOfDays(String numberOfDays) {
this.numberOfDays = numberOfDays;
}
public String getPollChoice(int index) {
if(index >= pollChoices.size()) {
pollChoices.add(index,new String());
}
return (String) pollChoices.get(index);
}
public void setPollChoice(int index,String choice) {
System.out.println("size: "+pollChoices.size()+"-
index:"+index);
if(index < pollChoices.size())
pollChoices.set(index,choice);
else
pollChoices.add(index,choice);
}
}
===
The html-form looks like below
Re: Why does struts assign indexedValues from 2nd index.......please help
I've tried another example also...
ListForm.java
=
package com.myapp.struts.formbeans;
import org.apache.struts.action.*;
import javax.servlet.http.*;
import java.util.*;
/**
*
* @author Sai
*/
public class ListForm extends ActionForm {
private int size = 3;
private List friends = new ArrayList(size);
public List getFriends( ) {
return friends;
}
public String getFriend(int index) {
if (index >= friends.size( )) {
friends.add(index, new String());
}
return (String) friends.get(index);
}
public void setFriend(int index, String name) {
System.out.println("size: "+friends.size()+"- index:"+index);
}
public void reset(ActionMapping mapping, HttpServletRequest request) {
// prepopulate the list with empty strings
friends = new ArrayList( );
for (int i=0; iList Form Test
Who are your 3 friends:
Friend 1:
Friend 2:
Friend 3:
Friend 3:
Friend 3:
Friend 3:
Friend 3:
Friend 3:
The output while setting the request parameter values is as follows..
size: 3- index:0
size: 3- index:4
size: 3- index:3
size: 3- index:6
size: 3- index:7
size: 3- index:5
size: 3- index:1
size: 3- index:2
We can see here also struts is not settings the parameter values in order (
i mean according to the index ). It's trying to set object at 0 index,
jumping by trying to set at 4 index.
Why is this so??is this problem solved in struts 1.2.9 ( i'm
currently using 1.2.7) ??
Any personal suggestions are also appreciated..
Friends, please help
On Wed, May 7, 2008 at 1:30 AM, venkat reddy <[EMAIL PROTECTED]> wrote:
> I wanted to find a way to handle dynamic number of arguments for my
> poll-posting form which should be able to handle dynamic number of choice
> fields.
>
> So i maintained a list (pollChoices --> java.util.List type) for
> maintaining dynamic number of choice fields.
>
> ==
>PollForm.java
> ==
>
> package com.myapp.struts.formbeans;
> import org.apache.struts.action.*;
> import javax.servlet.http.*;
> import java.util.*;
> import org.apache.commons.lang.*;
> /**
> *
> * @author Sai
> */
> public class PollForm extends ActionForm {
>
> private String pollQuestion;
> private String numberOfDays;
> private ArrayList pollChoices;
>
> /** Creates a new instance of BasicForm */
> public PollForm() {
> }
>
> public void reset(ActionMapping map, HttpServletRequest req) {
> System.out.println("Reset start...");
> setPollQuestion("");
> setNumberOfDays("");
> pollChoices = new ArrayList();
> System.out.println("Reset end...");
> }
> public ActionErrors validate(ActionMapping map, HttpServletRequest req)
> {
>
> System.out.println("Validate method...");
> ActionErrors errors = new ActionErrors();
>
> if(StringUtils.isBlank(pollQuestion))
> errors.add("pollQuestion",new
> ActionMessage("errors.required","Poll Question"));
> if(StringUtils.isBlank(numberOfDays))
> errors.add("numberOfDays",new
> ActionMessage("errors.required","Number of days"));
> if(pollChoices.size() < 2)
> errors.add("pollChoice",new
> ActionMessage("errors.required","Atleast two poll choices"));
> return errors;
> }
>
> public String getPollQuestion() {
> return pollQuestion;
> }
>
> public void setPollQuestion(String pollQuestion) {
> this.pollQuestion = pollQuestion;
> }
>
> public String getNumberOfDays() {
> return numberOfDays;
> }
>
> public void setNumberOfDays(String numberOfDays) {
> this.numberOfDays = numberOfDays;
> }
>
> public String getPollChoice(int index) {
>
> if(index >= pollChoices.size()) {
> pollChoices.add(index,new String());
> }
> return (String) pollChoices.get(index);
>
> }
>
> public void setPollChoice(int index,String choice) {
> System.out.println("size: "+pollChoices.size()+"-
> index:"+index);
>
> if(index < pollChoices.size())
> pollChoices.set(index,choice);
> else
> pollChoices.add(index,choice);
>
> }
>
> }
>
>
>
> ===
>
> The html-form looks like below
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> =
> I'm using struts 1.2.7
>
> Now the problem is when struts populates my pollChoice fields using
> bean-utils setIndexedPrope
