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Posted to user@struts.apache.org by Roberto Nunnari <ro...@supsi.ch> on 2007/06/20 18:16:22 UTC
properties at times not found
Hello.
I have an action with a getter for a List.
In the execute method of the action I can verify the list is not empty.
But in the jsp view, at times it reports an empty list.
the action:
public class StorySearch extends ActionSupport {
private List<Story> stories = null;
...
public String execute() throws Exception {
...
stories = dataManager.searchStories(...);
for (Story story : stories) {
System.out.println(" "+story.getId());
}
return SUCCESS;
}
public List getStories() {
return stories;
}
the JSP:
<c:url var="storyURL" value="/StoryView.action"/>
<display:table name="${stories}" requestURI="storySearch.action">
<display:column property="id" href="${storyURL}" paramId="id"/>
<display:column property="title"/>
<display:column property="text"/>
<display:column property="link" autolink="true"/>
<display:column property="accessCount" sortable="true"/>
<display:column property="creationDate" sortable="true"/>
<display:caption>This is the table caption</display:caption>
</display:table>
Any hints?
Thank you.
--
Robi
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Re: properties at times not found
Posted by Roberto Nunnari <ro...@supsi.ch>.
Dave Newton wrote:
> --- Roberto Nunnari <ro...@supsi.ch> wrote:
>> But what does that mean?
>
> I've just been chalking it up to magic.
>
>> How can I find out what's going on?
>> Do I have to keep the filter mapped?
>
> Probably. Are you using SiteMesh? In a nutshell, this
No. But I'm using Tiles.
> filter tells the dispatcher filter not to clean up the
> action context and have it cleaned by this filter
> instead.
>
> So something may have been trying to access the action
> context after the filter dispatcher ran, which blows
> things up--I don't know and/or recall your
> configuration, but you could start looking based on
> what little I've told you ;)
I'm looking up the API doc.
Thank you.
--
Robi
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Re: properties at times not found
Posted by Dave Newton <ne...@yahoo.com>.
--- Roberto Nunnari <ro...@supsi.ch> wrote:
> But what does that mean?
I've just been chalking it up to magic.
> How can I find out what's going on?
> Do I have to keep the filter mapped?
Probably. Are you using SiteMesh? In a nutshell, this
filter tells the dispatcher filter not to clean up the
action context and have it cleaned by this filter
instead.
So something may have been trying to access the action
context after the filter dispatcher ran, which blows
things up--I don't know and/or recall your
configuration, but you could start looking based on
what little I've told you ;)
d.
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Re: properties at times not found
Posted by Roberto Nunnari <ro...@supsi.ch>.
Hello Dave.
Yes. That helps! Now the JSP always get good data..
But what does that mean?
How can I find out what's going on?
Do I have to keep the filter mapped?
Dave Newton wrote:
> One thing I've done when weird things are happening
> for no apparent reason is include the context cleanup
> filter; you can always see if that helps; map it
> before the struts dispatcher.
>
> <filter>
> <filter-name>contextCleanup</filter-name>
> <filter-class>
> org.apache.struts2.dispatcher.ActionContextCleanUp
> </filter-class>
> </filter>
>
> d.
>
>
> --- Roberto Nunnari <ro...@supsi.ch> wrote:
>
>> Hello list.
>>
>> Going on with investigation on this strange
>> misbehaviour, I found
>> out that when the JSP page gets good data, in the
>> value stack
>> I see:
>> key:
>>
> com.opensymphony.xwork2.dispatcher.HttpServletRequest
>> value:
>>
> org.apache.struts2.dispatcher.StrutsRequestWrapper@dd874
>> while when I get no data I see:
>> key:
>>
> com.opensymphony.xwork2.dispatcher.HttpServletRequest
>> value: uri: /iopinion_hibernate00/storySearch.action
>>
>> somehow, I believe the interceptor stack is wrong..
>> maybe
>> is my filter configuration?? I have added a filter
>> in an attempt
>> to use 'open session on view pattern' for use with
>> hibernate.
>> I believe that may be causing prolems, as I remember
>> if the
>> order was different the application would not work..
>>
>> Should I use an interceptor instead?
>>
>> Here's a snipset from my web.xml
>>
>> *************************
>> <filter>
>> <filter-name>HibernateFilter</filter-name>
>>
>>
> <filter-class>com.foo.HibernateSessionRequestFilter</filter-class>
>> </filter>
>>
>> <filter>
>> <filter-name>struts2</filter-name>
>>
> <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
>> </filter>
>>
>> <filter-mapping>
>> <filter-name>HibernateFilter</filter-name>
>> <url-pattern>/*</url-pattern>
>> </filter-mapping>
>>
>> <filter-mapping>
>> <filter-name>struts2</filter-name>
>> <url-pattern>/*</url-pattern>
>> </filter-mapping>
>> *************************
>>
>>
>> Can any kind soul help me, please?
>>
>> Thank you.
>>
>> --
>> Robi
>>
>> Roberto Nunnari wrote:
>>> Hello.
>>>
>>> I have an action with a getter for a List.
>>> In the execute method of the action I can verify
>> the list is not empty.
>>> But in the jsp view, at times it reports an empty
>> list.
>>>
>>> the action:
>>> public class StorySearch extends ActionSupport {
>>> private List<Story> stories = null;
>>> ...
>>> public String execute() throws Exception {
>>> ...
>>> stories = dataManager.searchStories(...);
>>> for (Story story : stories) {
>>> System.out.println(" "+story.getId());
>>> }
>>> return SUCCESS;
>>> }
>>>
>>> public List getStories() {
>>> return stories;
>>> }
>>>
>>>
>>> the JSP:
>>> <c:url var="storyURL" value="/StoryView.action"/>
>>> <display:table name="${stories}"
>> requestURI="storySearch.action">
>>> <display:column property="id"
>> href="${storyURL}" paramId="id"/>
>>> <display:column property="title"/>
>>> <display:column property="text"/>
>>> <display:column property="link"
>> autolink="true"/>
>>> <display:column property="accessCount"
>> sortable="true"/>
>>> <display:column property="creationDate"
>> sortable="true"/>
>>> <display:caption>This is the table
>> caption</display:caption>
>>> </display:table>
>>>
>>>
>>> Any hints?
>>> Thank you.
>>>
>>
>>
>>
> ---------------------------------------------------------------------
>> To unsubscribe, e-mail:
>> user-unsubscribe@struts.apache.org
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>> user-help@struts.apache.org
>>
>>
>
>
>
>
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--
Roberto Nunnari
Servizi Informatici SUPSI-DTI
SUPSI-DTI - Via Cantonale - 6928 Manno - Switzerland
email: mailto:roberto.nunnari@supsi.ch
tel: +41-58-6666561
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Re: properties at times not found
Posted by Dave Newton <ne...@yahoo.com>.
One thing I've done when weird things are happening
for no apparent reason is include the context cleanup
filter; you can always see if that helps; map it
before the struts dispatcher.
<filter>
<filter-name>contextCleanup</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ActionContextCleanUp
</filter-class>
</filter>
d.
--- Roberto Nunnari <ro...@supsi.ch> wrote:
> Hello list.
>
> Going on with investigation on this strange
> misbehaviour, I found
> out that when the JSP page gets good data, in the
> value stack
> I see:
> key:
>
com.opensymphony.xwork2.dispatcher.HttpServletRequest
> value:
>
org.apache.struts2.dispatcher.StrutsRequestWrapper@dd874
>
> while when I get no data I see:
> key:
>
com.opensymphony.xwork2.dispatcher.HttpServletRequest
> value: uri: /iopinion_hibernate00/storySearch.action
>
> somehow, I believe the interceptor stack is wrong..
> maybe
> is my filter configuration?? I have added a filter
> in an attempt
> to use 'open session on view pattern' for use with
> hibernate.
> I believe that may be causing prolems, as I remember
> if the
> order was different the application would not work..
>
> Should I use an interceptor instead?
>
> Here's a snipset from my web.xml
>
> *************************
> <filter>
> <filter-name>HibernateFilter</filter-name>
>
>
<filter-class>com.foo.HibernateSessionRequestFilter</filter-class>
> </filter>
>
> <filter>
> <filter-name>struts2</filter-name>
>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
> </filter>
>
> <filter-mapping>
> <filter-name>HibernateFilter</filter-name>
> <url-pattern>/*</url-pattern>
> </filter-mapping>
>
> <filter-mapping>
> <filter-name>struts2</filter-name>
> <url-pattern>/*</url-pattern>
> </filter-mapping>
> *************************
>
>
> Can any kind soul help me, please?
>
> Thank you.
>
> --
> Robi
>
> Roberto Nunnari wrote:
> > Hello.
> >
> > I have an action with a getter for a List.
> > In the execute method of the action I can verify
> the list is not empty.
> > But in the jsp view, at times it reports an empty
> list.
> >
> >
> > the action:
> > public class StorySearch extends ActionSupport {
> > private List<Story> stories = null;
> > ...
> > public String execute() throws Exception {
> > ...
> > stories = dataManager.searchStories(...);
> > for (Story story : stories) {
> > System.out.println(" "+story.getId());
> > }
> > return SUCCESS;
> > }
> >
> > public List getStories() {
> > return stories;
> > }
> >
> >
> > the JSP:
> > <c:url var="storyURL" value="/StoryView.action"/>
> > <display:table name="${stories}"
> requestURI="storySearch.action">
> > <display:column property="id"
> href="${storyURL}" paramId="id"/>
> > <display:column property="title"/>
> > <display:column property="text"/>
> > <display:column property="link"
> autolink="true"/>
> > <display:column property="accessCount"
> sortable="true"/>
> > <display:column property="creationDate"
> sortable="true"/>
> > <display:caption>This is the table
> caption</display:caption>
> > </display:table>
> >
> >
> > Any hints?
> > Thank you.
> >
>
>
>
>
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> user-help@struts.apache.org
>
>
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Re: properties at times not found
Posted by Roberto Nunnari <ro...@supsi.ch>.
Hello list.
Going on with investigation on this strange misbehaviour, I found
out that when the JSP page gets good data, in the value stack
I see:
key: com.opensymphony.xwork2.dispatcher.HttpServletRequest
value: org.apache.struts2.dispatcher.StrutsRequestWrapper@dd874
while when I get no data I see:
key: com.opensymphony.xwork2.dispatcher.HttpServletRequest
value: uri: /iopinion_hibernate00/storySearch.action
somehow, I believe the interceptor stack is wrong.. maybe
is my filter configuration?? I have added a filter in an attempt
to use 'open session on view pattern' for use with hibernate.
I believe that may be causing prolems, as I remember if the
order was different the application would not work..
Should I use an interceptor instead?
Here's a snipset from my web.xml
*************************
<filter>
<filter-name>HibernateFilter</filter-name>
<filter-class>com.foo.HibernateSessionRequestFilter</filter-class>
</filter>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>HibernateFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
*************************
Can any kind soul help me, please?
Thank you.
--
Robi
Roberto Nunnari wrote:
> Hello.
>
> I have an action with a getter for a List.
> In the execute method of the action I can verify the list is not empty.
> But in the jsp view, at times it reports an empty list.
>
>
> the action:
> public class StorySearch extends ActionSupport {
> private List<Story> stories = null;
> ...
> public String execute() throws Exception {
> ...
> stories = dataManager.searchStories(...);
> for (Story story : stories) {
> System.out.println(" "+story.getId());
> }
> return SUCCESS;
> }
>
> public List getStories() {
> return stories;
> }
>
>
> the JSP:
> <c:url var="storyURL" value="/StoryView.action"/>
> <display:table name="${stories}" requestURI="storySearch.action">
> <display:column property="id" href="${storyURL}" paramId="id"/>
> <display:column property="title"/>
> <display:column property="text"/>
> <display:column property="link" autolink="true"/>
> <display:column property="accessCount" sortable="true"/>
> <display:column property="creationDate" sortable="true"/>
> <display:caption>This is the table caption</display:caption>
> </display:table>
>
>
> Any hints?
> Thank you.
>
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Re: properties at times not found
Posted by "Emil.I" <ia...@primus.ca>.
Hello, i had a similar problem,
u may need a concrete implementation for your
property
something like:
private List<Story> stories = new LinkedList<Story>();
public List<Story> getStories() { return stories; }
and make sure to override toString() in your Story class...
don't know what else to tell ya.
Good Luck...:)
Roberto Nunnari wrote:
>
> Hello.
>
> I have an action with a getter for a List.
> In the execute method of the action I can verify the list is not empty.
> But in the jsp view, at times it reports an empty list.
>
>
> the action:
> public class StorySearch extends ActionSupport {
> private List<Story> stories = null;
> ...
> public String execute() throws Exception {
> ...
> stories = dataManager.searchStories(...);
> for (Story story : stories) {
> System.out.println(" "+story.getId());
> }
> return SUCCESS;
> }
>
> public List getStories() {
> return stories;
> }
>
>
> the JSP:
> <c:url var="storyURL" value="/StoryView.action"/>
> <display:table name="${stories}" requestURI="storySearch.action">
> <display:column property="id" href="${storyURL}" paramId="id"/>
> <display:column property="title"/>
> <display:column property="text"/>
> <display:column property="link" autolink="true"/>
> <display:column property="accessCount" sortable="true"/>
> <display:column property="creationDate" sortable="true"/>
> <display:caption>This is the table caption</display:caption>
> </display:table>
>
>
> Any hints?
> Thank you.
>
> --
> Robi
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
>
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Re: properties at times not found
Posted by Roberto Nunnari <ro...@supsi.ch>.
Jeff Amiel wrote:
> On 6/20/07, Roberto Nunnari <ro...@supsi.ch> wrote:
>> humm...
>
> If it's truly 'random' like that there are only 4 things that could be
> happening.
>
> 1. Display tag is broken (not likely)
don't think so.. the same thing happens also with another action that
puts a list (different name) in session via SessionAware and then
I loop the list via <c:foreach> and JSP EL (ie without using displaytag)
> 2. You occasionally have another element in some other scope with the
> same name that is being picked up 'first' in the search path by the
> value-stack logic (or display-tag's logic if you just do the
> name="stories")
no.
> 3. Displaytag is taking a crap trying to render certain elements
> (calling toString() on them? because you have no decorator classes)
> based on different search results. (You never said..if you put in the
> same search parameters every time, do you always get the same results
> ("nothing found to display" or good data)
always the same search.. in the action I get always the same data, in
JSP "nothing found to display" or good data
so.. don't think so.. see point 1
> 4. You are insane. :)
That may be..
5. libraries conflict?
Best regards.
--
Robi
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Re: properties at times not found
Posted by Jeff Amiel <je...@gmail.com>.
On 6/20/07, Roberto Nunnari <ro...@supsi.ch> wrote:
> humm...
If it's truly 'random' like that there are only 4 things that could be
happening.
1. Display tag is broken (not likely)
2. You occasionally have another element in some other scope with the
same name that is being picked up 'first' in the search path by the
value-stack logic (or display-tag's logic if you just do the
name="stories")
3. Displaytag is taking a crap trying to render certain elements
(calling toString() on them? because you have no decorator classes)
based on different search results. (You never said..if you put in the
same search parameters every time, do you always get the same results
("nothing found to display" or good data)
4. You are insane. :)
good luck!
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Re: properties at times not found
Posted by Roberto Nunnari <ro...@supsi.ch>.
Jeff Amiel wrote:
> On 6/20/07, Roberto Nunnari <ro...@supsi.ch> wrote:
>
>> Yes. That's it. It happens at random times.. not always.
>> When it happens, all I get instead of the table in the browser is:
>> Nothing found to display.
>
> makes no sense....sure you don't have a local variable inside the
> execute method called stories or something equally silly?...
hehe.. no I don't have a local variable inside the execute method..
in that case the instance variable would never get assigned..
> ....or even better...maybe another element called 'stories' being put
> on the value stack on top of the action class element with the same
> name.......
no.. by the way, do you know what scope would stories be put in?
request, session, application, page, or action?
I assume action, as the variable is on the action, but I used to
access it via JSP EL, that doesn't know about action scope, but
only request, session, application and page scopes..
>
> Doesn't display-tag have the ability to set the scope of the
> collection you are looking for (like sessionScope. as aprefix or
> requestScope.)......instead of the OGNL stuff with the
> name="${stories}", just do name="stories". Displaytag should just
> find it automagically...or you can play with those prefixes to try to
> pinpoint it in case some other element with same name is being placed
> first in the search path.
I didn't know I could use just name="stories". I tried that and it
works.. but just like before, at random times, the view doesn't find
the property, even though the execute method prints them on stdout.
humm...
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Re: properties at times not found
Posted by Jeff Amiel <je...@gmail.com>.
On 6/20/07, Roberto Nunnari <ro...@supsi.ch> wrote:
> Yes. That's it. It happens at random times.. not always.
> When it happens, all I get instead of the table in the browser is:
> Nothing found to display.
makes no sense....sure you don't have a local variable inside the
execute method called stories or something equally silly?...
....or even better...maybe another element called 'stories' being put
on the value stack on top of the action class element with the same
name.......
Doesn't display-tag have the ability to set the scope of the
collection you are looking for (like sessionScope. as aprefix or
requestScope.)......instead of the OGNL stuff with the
name="${stories}", just do name="stories". Displaytag should just
find it automagically...or you can play with those prefixes to try to
pinpoint it in case some other element with same name is being placed
first in the search path.
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Re: properties at times not found
Posted by Roberto Nunnari <ro...@supsi.ch>.
Hi Jeff.
Jeff Amiel wrote:
> On 6/20/07, Roberto Nunnari <ro...@supsi.ch> wrote:
>
>> In the execute method of the action I can verify the list is not empty.
>> But in the jsp view, at times it reports an empty list.
>
> Are you saying that 'sometimes' when the search actually brings back
> results (and you output it via that for loop in the action) that the
> display-tag section in the jsp is blank...? Not all the time?
Yes. That's it. It happens at random times.. not always.
When it happens, all I get instead of the table in the browser is:
Nothing found to display.
> ...?
> I'd add title parameters to the display:column elements and see if
> displaytag is dying just trying to find the stories list or if it is
> finding an empty list.
I added the title parameters to the display:column elements and the
result is just like before:
Nothing found to display.
Any more hints?
Thank you.
--
Robi
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Re: properties at times not found
Posted by Jeff Amiel <je...@gmail.com>.
On 6/20/07, Roberto Nunnari <ro...@supsi.ch> wrote:
> In the execute method of the action I can verify the list is not empty.
> But in the jsp view, at times it reports an empty list.
Are you saying that 'sometimes' when the search actually brings back
results (and you output it via that for loop in the action) that the
display-tag section in the jsp is blank...? Not all the time?
...?
I'd add title parameters to the display:column elements and see if
displaytag is dying just trying to find the stories list or if it is
finding an empty list.
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RE: properties at times not found
Posted by stanlick <st...@gmail.com>.
What is the implication of creating your model bean in the prepare() method
*and* having Spring wired to inject the bean into the action?
Scott Trafton wrote:
>
> Hi,
> I have been getting the same errors from the Parameter interceptor. So
> far I haven't found a way around that unless you put getters and setter
> for all the parameters in the action. (Which I don't want).
> However, the good news is that for better or worse, when/if you change
> the settings in the struts.properties file and set struts.devMode =
> false for production releases the messages go away. I'm not sure if
> those errors are in there for debugging reasons or not.
>
> -Scott
>
>
> -----Original Message-----
> From: stanlick@gmail.com [mailto:stanlick@gmail.com]
> Sent: Thursday, June 21, 2007 9:53 AM
> To: Struts Users Mailing List
> Subject: Re: properties at times not found
>
> Hey Scott --
>
> I am using ModelDriven and Preparable so I can pass an ID along with the
> requests. I added an id attribute to my baseaction class and things are
> working with one exception. Since the
> prepare method is called before the getModel, when I post a form, and
> the
> prepare gets called, I am receiving multiple errors where parameters
> could
> not be set!
>
> 08:52:22,119 DEBUG
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept:14
> 8 -
> Setting params created => [ 6/8/07 3:28:27 PM.000 ] dojo.effectiveDate
> => [
> 2007-06-20 ] action:PayrollUpdate_list => [ OK ] effectiveDate => [
> 6/20/07
> ] id => [ 2 ] version => [ 6/20/07 1:18:26 PM.000 ]
> 08:52:22,129 ERROR
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters:
> 204
> - ParametersInterceptor - [setParameters]: Unexpected Exception caught
> setting 'created' on 'class actions.PayrollUpdateAction: Error setting
> expression 'created' with value '[Ljava.lang.String;@30380'
> 08:52:22,139 ERROR
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters:
> 204
> - ParametersInterceptor - [setParameters]: Unexpected Exception caught
> setting 'dojo.effectiveDate' on 'class actions.PayrollUpdateAction:
> Error
> setting expression 'dojo.effectiveDate' with value '[Ljava.lang.String
> ;@1dad8eb'
> 08:52:22,139 ERROR
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters:
> 204
> - ParametersInterceptor - [setParameters]: Unexpected Exception caught
> setting 'effectiveDate' on 'class actions.PayrollUpdateAction: Error
> setting
> expression 'effectiveDate' with value '[Ljava.lang.String;@d73fb7'
> 08:52:22,169 ERROR
> com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters:
> 204
> - ParametersInterceptor - [setParameters]: Unexpected Exception caught
> setting 'version' on 'class actions.PayrollUpdateAction: Error setting
> expression 'version' with value '[Ljava.lang.String;@19829a9'
>
>
>
> On 6/20/07, Scott Trafton <st...@soundbite.com> wrote:
>>
>> If you are trying to load your list by using a parameter passed in..
> say
>> and Id from a link or another page, you might need to use the
>> paramsPrepareParamsStack interceptor and implement Preparable in you
>> action.
>>
>> I ran into a similar problem the other day. You would need to put
> your
>> code to populate the list in the Prepare() method.
>>
>> http://struts.apache.org/2.x/docs/crud-demo-i.html
>>
>> check out the "The prepare approach" in the above link.
>>
>> I hope this helps.
>> -Scott
>>
>>
>> -----Original Message-----
>> From: Roberto Nunnari [mailto: roberto.nunnari@supsi.ch]
>> Sent: Wednesday, June 20, 2007 12:16 PM
>> To: Struts Users Mailing List
>> Subject: properties at times not found
>>
>> Hello.
>>
>> I have an action with a getter for a List.
>> In the execute method of the action I can verify the list is not
> empty.
>> But in the jsp view, at times it reports an empty list.
>>
>>
>> the action:
>> public class StorySearch extends ActionSupport {
>> private List<Story> stories = null;
>> ...
>> public String execute() throws Exception {
>> ...
>> stories = dataManager.searchStories(...);
>> for (Story story : stories) {
>> System.out.println(" "+story.getId());
>> }
>> return SUCCESS;
>> }
>>
>> public List getStories() {
>> return stories;
>> }
>>
>>
>> the JSP:
>> <c:url var="storyURL" value="/StoryView.action"/>
>> <display:table name="${stories}" requestURI=" storySearch.action">
>> <display:column property="id" href="${storyURL}" paramId="id"/>
>> <display:column property="title"/>
>> <display:column property="text"/>
>> <display:column property="link" autolink="true"/>
>> <display:column property="accessCount" sortable="true"/>
>> <display:column property="creationDate" sortable="true"/>
>> <display:caption>This is the table caption</display:caption>
>> </display:table>
>>
>>
>> Any hints?
>> Thank you.
>>
>> --
>> Robi
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>> For additional commands, e-mail: user-help@struts.apache.org
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>> For additional commands, e-mail: user-help@struts.apache.org
>>
>>
>
>
> --
> Scott
> stanlick@gmail.com
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
>
--
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RE: properties at times not found
Posted by Scott Trafton <st...@soundbite.com>.
Hi,
I have been getting the same errors from the Parameter interceptor. So
far I haven't found a way around that unless you put getters and setter
for all the parameters in the action. (Which I don't want).
However, the good news is that for better or worse, when/if you change
the settings in the struts.properties file and set struts.devMode =
false for production releases the messages go away. I'm not sure if
those errors are in there for debugging reasons or not.
-Scott
-----Original Message-----
From: stanlick@gmail.com [mailto:stanlick@gmail.com]
Sent: Thursday, June 21, 2007 9:53 AM
To: Struts Users Mailing List
Subject: Re: properties at times not found
Hey Scott --
I am using ModelDriven and Preparable so I can pass an ID along with the
requests. I added an id attribute to my baseaction class and things are
working with one exception. Since the
prepare method is called before the getModel, when I post a form, and
the
prepare gets called, I am receiving multiple errors where parameters
could
not be set!
08:52:22,119 DEBUG
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept:14
8 -
Setting params created => [ 6/8/07 3:28:27 PM.000 ] dojo.effectiveDate
=> [
2007-06-20 ] action:PayrollUpdate_list => [ OK ] effectiveDate => [
6/20/07
] id => [ 2 ] version => [ 6/20/07 1:18:26 PM.000 ]
08:52:22,129 ERROR
com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters:
204
- ParametersInterceptor - [setParameters]: Unexpected Exception caught
setting 'created' on 'class actions.PayrollUpdateAction: Error setting
expression 'created' with value '[Ljava.lang.String;@30380'
08:52:22,139 ERROR
com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters:
204
- ParametersInterceptor - [setParameters]: Unexpected Exception caught
setting 'dojo.effectiveDate' on 'class actions.PayrollUpdateAction:
Error
setting expression 'dojo.effectiveDate' with value '[Ljava.lang.String
;@1dad8eb'
08:52:22,139 ERROR
com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters:
204
- ParametersInterceptor - [setParameters]: Unexpected Exception caught
setting 'effectiveDate' on 'class actions.PayrollUpdateAction: Error
setting
expression 'effectiveDate' with value '[Ljava.lang.String;@d73fb7'
08:52:22,169 ERROR
com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters:
204
- ParametersInterceptor - [setParameters]: Unexpected Exception caught
setting 'version' on 'class actions.PayrollUpdateAction: Error setting
expression 'version' with value '[Ljava.lang.String;@19829a9'
On 6/20/07, Scott Trafton <st...@soundbite.com> wrote:
>
> If you are trying to load your list by using a parameter passed in..
say
> and Id from a link or another page, you might need to use the
> paramsPrepareParamsStack interceptor and implement Preparable in you
> action.
>
> I ran into a similar problem the other day. You would need to put
your
> code to populate the list in the Prepare() method.
>
> http://struts.apache.org/2.x/docs/crud-demo-i.html
>
> check out the "The prepare approach" in the above link.
>
> I hope this helps.
> -Scott
>
>
> -----Original Message-----
> From: Roberto Nunnari [mailto: roberto.nunnari@supsi.ch]
> Sent: Wednesday, June 20, 2007 12:16 PM
> To: Struts Users Mailing List
> Subject: properties at times not found
>
> Hello.
>
> I have an action with a getter for a List.
> In the execute method of the action I can verify the list is not
empty.
> But in the jsp view, at times it reports an empty list.
>
>
> the action:
> public class StorySearch extends ActionSupport {
> private List<Story> stories = null;
> ...
> public String execute() throws Exception {
> ...
> stories = dataManager.searchStories(...);
> for (Story story : stories) {
> System.out.println(" "+story.getId());
> }
> return SUCCESS;
> }
>
> public List getStories() {
> return stories;
> }
>
>
> the JSP:
> <c:url var="storyURL" value="/StoryView.action"/>
> <display:table name="${stories}" requestURI=" storySearch.action">
> <display:column property="id" href="${storyURL}" paramId="id"/>
> <display:column property="title"/>
> <display:column property="text"/>
> <display:column property="link" autolink="true"/>
> <display:column property="accessCount" sortable="true"/>
> <display:column property="creationDate" sortable="true"/>
> <display:caption>This is the table caption</display:caption>
> </display:table>
>
>
> Any hints?
> Thank you.
>
> --
> Robi
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
--
Scott
stanlick@gmail.com
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Re: properties at times not found
Posted by st...@gmail.com.
Hey Scott --
I am using ModelDriven and Preparable so I can pass an ID along with the
requests. I added an id attribute to my baseaction class and things are
working with one exception. Since the
prepare method is called before the getModel, when I post a form, and the
prepare gets called, I am receiving multiple errors where parameters could
not be set!
08:52:22,119 DEBUG
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept:148 -
Setting params created => [ 6/8/07 3:28:27 PM.000 ] dojo.effectiveDate => [
2007-06-20 ] action:PayrollUpdate_list => [ OK ] effectiveDate => [ 6/20/07
] id => [ 2 ] version => [ 6/20/07 1:18:26 PM.000 ]
08:52:22,129 ERROR
com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters:204
- ParametersInterceptor - [setParameters]: Unexpected Exception caught
setting 'created' on 'class actions.PayrollUpdateAction: Error setting
expression 'created' with value '[Ljava.lang.String;@30380'
08:52:22,139 ERROR
com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters:204
- ParametersInterceptor - [setParameters]: Unexpected Exception caught
setting 'dojo.effectiveDate' on 'class actions.PayrollUpdateAction: Error
setting expression 'dojo.effectiveDate' with value '[Ljava.lang.String
;@1dad8eb'
08:52:22,139 ERROR
com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters:204
- ParametersInterceptor - [setParameters]: Unexpected Exception caught
setting 'effectiveDate' on 'class actions.PayrollUpdateAction: Error setting
expression 'effectiveDate' with value '[Ljava.lang.String;@d73fb7'
08:52:22,169 ERROR
com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters:204
- ParametersInterceptor - [setParameters]: Unexpected Exception caught
setting 'version' on 'class actions.PayrollUpdateAction: Error setting
expression 'version' with value '[Ljava.lang.String;@19829a9'
On 6/20/07, Scott Trafton <st...@soundbite.com> wrote:
>
> If you are trying to load your list by using a parameter passed in.. say
> and Id from a link or another page, you might need to use the
> paramsPrepareParamsStack interceptor and implement Preparable in you
> action.
>
> I ran into a similar problem the other day. You would need to put your
> code to populate the list in the Prepare() method.
>
> http://struts.apache.org/2.x/docs/crud-demo-i.html
>
> check out the "The prepare approach" in the above link.
>
> I hope this helps.
> -Scott
>
>
> -----Original Message-----
> From: Roberto Nunnari [mailto: roberto.nunnari@supsi.ch]
> Sent: Wednesday, June 20, 2007 12:16 PM
> To: Struts Users Mailing List
> Subject: properties at times not found
>
> Hello.
>
> I have an action with a getter for a List.
> In the execute method of the action I can verify the list is not empty.
> But in the jsp view, at times it reports an empty list.
>
>
> the action:
> public class StorySearch extends ActionSupport {
> private List<Story> stories = null;
> ...
> public String execute() throws Exception {
> ...
> stories = dataManager.searchStories(...);
> for (Story story : stories) {
> System.out.println(" "+story.getId());
> }
> return SUCCESS;
> }
>
> public List getStories() {
> return stories;
> }
>
>
> the JSP:
> <c:url var="storyURL" value="/StoryView.action"/>
> <display:table name="${stories}" requestURI=" storySearch.action">
> <display:column property="id" href="${storyURL}" paramId="id"/>
> <display:column property="title"/>
> <display:column property="text"/>
> <display:column property="link" autolink="true"/>
> <display:column property="accessCount" sortable="true"/>
> <display:column property="creationDate" sortable="true"/>
> <display:caption>This is the table caption</display:caption>
> </display:table>
>
>
> Any hints?
> Thank you.
>
> --
> Robi
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
--
Scott
stanlick@gmail.com
Re: properties at times not found
Posted by Roberto Nunnari <ro...@supsi.ch>.
Hi again Scott.
I tried anyways adding
<default-interceptor-ref name="paramsPrepareParamsStack"/>
to my struts.xml but it doesn't help..
Any more hints?
Roberto Nunnari wrote:
> Hello Scott.
>
> ..but.. the list is a property of the action, and it's populated in
> the execute method.. the JSP, should be rendered after
> the execute method has returned, and so at that time it
> should be safe to get the stories from the action, as
> by now it should be set and ready.
>
> Do I miss anyhing?
>
> --
> Robi.
>
>
> Scott Trafton wrote:
>> If you are trying to load your list by using a parameter passed in.. say
>> and Id from a link or another page, you might need to use the
>> paramsPrepareParamsStack interceptor and implement Preparable in you
>> action.
>>
>> I ran into a similar problem the other day. You would need to put your
>> code to populate the list in the Prepare() method.
>>
>> http://struts.apache.org/2.x/docs/crud-demo-i.html
>> check out the "The prepare approach" in the above link.
>>
>> I hope this helps.
>> -Scott
>>
>>
>> -----Original Message-----
>> From: Roberto Nunnari [mailto:roberto.nunnari@supsi.ch] Sent:
>> Wednesday, June 20, 2007 12:16 PM
>> To: Struts Users Mailing List
>> Subject: properties at times not found
>>
>> Hello.
>>
>> I have an action with a getter for a List.
>> In the execute method of the action I can verify the list is not empty.
>> But in the jsp view, at times it reports an empty list.
>>
>>
>> the action:
>> public class StorySearch extends ActionSupport {
>> private List<Story> stories = null;
>> ...
>> public String execute() throws Exception {
>> ...
>> stories = dataManager.searchStories(...);
>> for (Story story : stories) {
>> System.out.println(" "+story.getId());
>> }
>> return SUCCESS;
>> }
>>
>> public List getStories() {
>> return stories;
>> }
>>
>>
>> the JSP:
>> <c:url var="storyURL" value="/StoryView.action"/>
>> <display:table name="${stories}" requestURI="storySearch.action">
>> <display:column property="id" href="${storyURL}" paramId="id"/>
>> <display:column property="title"/>
>> <display:column property="text"/>
>> <display:column property="link" autolink="true"/>
>> <display:column property="accessCount" sortable="true"/>
>> <display:column property="creationDate" sortable="true"/>
>> <display:caption>This is the table caption</display:caption>
>> </display:table>
>>
>>
>> Any hints?
>> Thank you.
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
--
Roberto Nunnari
Servizi Informatici SUPSI-DTI
SUPSI-DTI - Via Cantonale - 6928 Manno - Switzerland
email: mailto:roberto.nunnari@supsi.ch
tel: +41-58-6666561
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RE: properties at times not found
Posted by Scott Trafton <st...@soundbite.com>.
If you do the following I am pretty sure it would work, assuming you are
pasing in the id for dataManager.searchStories(id) .
Action class:
================
public class StorySearch extends ActionSupport implements Preparable {
private List<Story> stories = null;
private String id; //add getters and setters for id
...
public void prepare() throws Exception{
if(id != null ){
stories = dataManager.searchStories(id);
}
}
public String execute() throws Exception {
...
for (Story story : stories) {
System.out.println(" "+story.getId());
}
return SUCCESS;
}
public List getStories() {
return stories;
}
Struts.xml
==============
Use the following in interceptor stack in the display action
<interceptor-ref name="paramsPrepareParamsStack"/>
If that doesn't work, I'm really not sure what to tell you. That was how
I ended up getting my list to load.
The interceptor stack will load the id from the request. Then run
Prepare to get your list data before calling the jsp and execute. At
least I believe that is how it works.
-Scott
-----Original Message-----
From: Roberto Nunnari [mailto:roberto.nunnari@supsi.ch]
Sent: Wednesday, June 20, 2007 12:49 PM
To: Struts Users Mailing List
Subject: Re: properties at times not found
Hello Scott.
..but.. the list is a property of the action, and it's populated in
the execute method.. the JSP, should be rendered after
the execute method has returned, and so at that time it
should be safe to get the stories from the action, as
by now it should be set and ready.
Do I miss anyhing?
--
Robi.
Scott Trafton wrote:
> If you are trying to load your list by using a parameter passed in..
say
> and Id from a link or another page, you might need to use the
> paramsPrepareParamsStack interceptor and implement Preparable in you
> action.
>
> I ran into a similar problem the other day. You would need to put
your
> code to populate the list in the Prepare() method.
>
> http://struts.apache.org/2.x/docs/crud-demo-i.html
>
> check out the "The prepare approach" in the above link.
>
> I hope this helps.
> -Scott
>
>
> -----Original Message-----
> From: Roberto Nunnari [mailto:roberto.nunnari@supsi.ch]
> Sent: Wednesday, June 20, 2007 12:16 PM
> To: Struts Users Mailing List
> Subject: properties at times not found
>
> Hello.
>
> I have an action with a getter for a List.
> In the execute method of the action I can verify the list is not
empty.
> But in the jsp view, at times it reports an empty list.
>
>
> the action:
> public class StorySearch extends ActionSupport {
> private List<Story> stories = null;
> ...
> public String execute() throws Exception {
> ...
> stories = dataManager.searchStories(...);
> for (Story story : stories) {
> System.out.println(" "+story.getId());
> }
> return SUCCESS;
> }
>
> public List getStories() {
> return stories;
> }
>
>
> the JSP:
> <c:url var="storyURL" value="/StoryView.action"/>
> <display:table name="${stories}" requestURI="storySearch.action">
> <display:column property="id" href="${storyURL}" paramId="id"/>
> <display:column property="title"/>
> <display:column property="text"/>
> <display:column property="link" autolink="true"/>
> <display:column property="accessCount" sortable="true"/>
> <display:column property="creationDate" sortable="true"/>
> <display:caption>This is the table caption</display:caption>
> </display:table>
>
>
> Any hints?
> Thank you.
>
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Re: properties at times not found
Posted by Roberto Nunnari <ro...@supsi.ch>.
Hello Scott.
..but.. the list is a property of the action, and it's populated in
the execute method.. the JSP, should be rendered after
the execute method has returned, and so at that time it
should be safe to get the stories from the action, as
by now it should be set and ready.
Do I miss anyhing?
--
Robi.
Scott Trafton wrote:
> If you are trying to load your list by using a parameter passed in.. say
> and Id from a link or another page, you might need to use the
> paramsPrepareParamsStack interceptor and implement Preparable in you
> action.
>
> I ran into a similar problem the other day. You would need to put your
> code to populate the list in the Prepare() method.
>
> http://struts.apache.org/2.x/docs/crud-demo-i.html
>
> check out the "The prepare approach" in the above link.
>
> I hope this helps.
> -Scott
>
>
> -----Original Message-----
> From: Roberto Nunnari [mailto:roberto.nunnari@supsi.ch]
> Sent: Wednesday, June 20, 2007 12:16 PM
> To: Struts Users Mailing List
> Subject: properties at times not found
>
> Hello.
>
> I have an action with a getter for a List.
> In the execute method of the action I can verify the list is not empty.
> But in the jsp view, at times it reports an empty list.
>
>
> the action:
> public class StorySearch extends ActionSupport {
> private List<Story> stories = null;
> ...
> public String execute() throws Exception {
> ...
> stories = dataManager.searchStories(...);
> for (Story story : stories) {
> System.out.println(" "+story.getId());
> }
> return SUCCESS;
> }
>
> public List getStories() {
> return stories;
> }
>
>
> the JSP:
> <c:url var="storyURL" value="/StoryView.action"/>
> <display:table name="${stories}" requestURI="storySearch.action">
> <display:column property="id" href="${storyURL}" paramId="id"/>
> <display:column property="title"/>
> <display:column property="text"/>
> <display:column property="link" autolink="true"/>
> <display:column property="accessCount" sortable="true"/>
> <display:column property="creationDate" sortable="true"/>
> <display:caption>This is the table caption</display:caption>
> </display:table>
>
>
> Any hints?
> Thank you.
>
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RE: properties at times not found
Posted by Scott Trafton <st...@soundbite.com>.
If you are trying to load your list by using a parameter passed in.. say
and Id from a link or another page, you might need to use the
paramsPrepareParamsStack interceptor and implement Preparable in you
action.
I ran into a similar problem the other day. You would need to put your
code to populate the list in the Prepare() method.
http://struts.apache.org/2.x/docs/crud-demo-i.html
check out the "The prepare approach" in the above link.
I hope this helps.
-Scott
-----Original Message-----
From: Roberto Nunnari [mailto:roberto.nunnari@supsi.ch]
Sent: Wednesday, June 20, 2007 12:16 PM
To: Struts Users Mailing List
Subject: properties at times not found
Hello.
I have an action with a getter for a List.
In the execute method of the action I can verify the list is not empty.
But in the jsp view, at times it reports an empty list.
the action:
public class StorySearch extends ActionSupport {
private List<Story> stories = null;
...
public String execute() throws Exception {
...
stories = dataManager.searchStories(...);
for (Story story : stories) {
System.out.println(" "+story.getId());
}
return SUCCESS;
}
public List getStories() {
return stories;
}
the JSP:
<c:url var="storyURL" value="/StoryView.action"/>
<display:table name="${stories}" requestURI="storySearch.action">
<display:column property="id" href="${storyURL}" paramId="id"/>
<display:column property="title"/>
<display:column property="text"/>
<display:column property="link" autolink="true"/>
<display:column property="accessCount" sortable="true"/>
<display:column property="creationDate" sortable="true"/>
<display:caption>This is the table caption</display:caption>
</display:table>
Any hints?
Thank you.
--
Robi
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