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Posted to users@tapestry.apache.org by robnangle <ro...@gmail.com> on 2011/03/01 13:18:54 UTC
org.apache.tapestry5.runtime.ComponentEventException
I have seen a couple thru the forum but I dont think they apply to the error
im getting.
org.apache.tapestry5.runtime.ComponentEventException
context
eventType:
action
location:
context:SelectPlayers.tml, line 10
5 <body>
6 <h1>Select Player</h1>
7
8
9
10 <t:form t:id="user_team">
11 <input align="center" t:type="TextField" t:id="team_name"
size="25" value="team_name" />
12
13 <t:select t:id="goalkeeper" model="goalkeepers"
value="keeper"/><br/><br/>
14
15 <t:select t:id="fullBack1" model="fullBack"
value="fullBack1"/>
org.apache.tapestry5.runtime.ComponentEventException
context
eventType:
success
location:
context:SelectPlayers.tml, line 10
java.lang.NullPointerException
Hide uninteresting stack frames Stack trace
FantasyGaa.pages.SelectPlayers.onSuccess(SelectPlayers.java:246)
FantasyGaa.pages.SelectPlayers.dispatchComponentEvent(SelectPlayers.java)
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:902)
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1081)
org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl.triggerContextEvent(InternalComponentResourcesImpl.java:263)
org.apache.tapestry5.corelib.components.Form._$advised$onAction(Form.java:398)
org.apache.tapestry5.corelib.components.Form$onAction$invocation_12e7158d084.invokeAdvisedMethod(Form$onAction$invocation_12e7158d084.java)
org.apache.tapestry5.internal.services.AbstractComponentMethodInvocation.proceed(AbstractComponentMethodInvocation.java:71)
org.apache.tapestry5.ioc.internal.services.LoggingAdvice.advise(LoggingAdvice.java:37)
org.apache.tapestry5.internal.transform.LogWorker$1.advise(LogWorker.java:54)
org.apache.tapestry5.internal.services.AbstractComponentMethodInvocation.proceed(AbstractComponentMethodInvocation.java:80)
org.apache.tapestry5.corelib.components.Form.onAction(Form.java)
org.apache.tapestry5.corelib.components.Form.dispatchComponentEvent(Form.java)
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:910)
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1081)
org.apache.tapestry5.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:75)
org.apache.tapestry5.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42)
org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42)
org.apache.tapestry5.services.TapestryModule$36.handle(TapestryModule.java:2164)
org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handleComponentEvent(ComponentRequestHandlerTerminator.java:43)
org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:46)
org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:245)
FantasyGaa.services.AppModule$1.service(AppModule.java:90)
org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
org.apache.tapestry5.services.TapestryModule$4.service(TapestryModule.java:778)
org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule.java:767)
org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:85)
org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:90)
org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:81)
org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:85)
org.apache.tapestry5.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:103)
org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandlerTerminator.service(TapestryModule.java:197)
org.apache.tapestry5.internal.gzip.GZipFilter.service(GZipFilter.java:53)
org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62)
org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:726)
org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:127)
Any help would be greatly appreciated.
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Re: org.apache.tapestry5.runtime.ComponentEventException
Posted by Richard Hill <ri...@su3analytics.com>.
Yes. query the db for the id that has been created.
On Wed, 2011-03-02 at 03:49 -0800, robnangle wrote:
> Is it because when a new user registers there user id is set by the database
> and not the java class? If so is there any way of solving the problem?
>
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Re: org.apache.tapestry5.runtime.ComponentEventException
Posted by robnangle <ro...@gmail.com>.
Is it because when a new user registers there user id is set by the database
and not the java class? If so is there any way of solving the problem?
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Re: org.apache.tapestry5.runtime.ComponentEventException
Posted by Howard Lewis Ship <hl...@gmail.com>.
On Tue, Mar 1, 2011 at 9:59 AM, robnangle <ro...@gmail.com> wrote:
>
> Richard Hill-7 wrote:
>>
>> I haven't used the @SessionState annotation, I use the
>> ApplicationStateManager directly to store SSOs but a quick look at the
>> docs suggest it's doing the same thing.
>>
>> Firstly, I don't understand your User class - it seems to also contain a
>> User field? Sounds like a stackoverflow in the making....
>>
>> Secondly, whatever object you're persisting as an SSO does not need it's
>> class annotated with @SessionState.
>>
>> AFAIU tapestry will instantiate any SSO that you access if it's null
>> (you can override this behaviour). However of course any class fields
>> will be null unless they get instantiated in the default constructor
>> somehow.
Tapestry does some tricky things with bytecode transformation. Often,
it stops using your fields entirely, so what you see in the debugger
may not match what's really going on in the live code. This is
somewhat fixed in trunk (5.3.0) and will be fixed in 5.2.5.
>>
>> A very simple login might look like this (ignoring things like hashing
>> passwords):
>>
>> @SessionState(create=false)
>> private User user;
>>
>> @Property
>> private String loginName;
>> @Propety
>> private String password;
>>
>> @Inject
>> private UserDao userDao;
>>
>> private String onSuccessFromLoginForm() {
>>
>> user = userDao.get(loginName);
>>
>> if (user != null && user.getPassword().equals(password) {
>> return "PrivatePage";
>> } else {
>> user = null; // if user is null not logged in
>> }
>> return null; // stay on login page
>> }
>>
>> Now assuming the passwords matched, user should be non-null on other
>> pages.
>>
>
> Yes the user is not null, as when I navigate from that page I display:
>
> Logged in as: username
>
> But the user_id still remains null for some reason.
>
> Tryed setting it in the user constructor but no difference:
> user(string user_id) {
> this.user_id = user_id;}
>
>
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RE: org.apache.tapestry5.runtime.ComponentEventException
Posted by robnangle <ro...@gmail.com>.
Richard Hill-7 wrote:
>
> I haven't used the @SessionState annotation, I use the
> ApplicationStateManager directly to store SSOs but a quick look at the
> docs suggest it's doing the same thing.
>
> Firstly, I don't understand your User class - it seems to also contain a
> User field? Sounds like a stackoverflow in the making....
>
> Secondly, whatever object you're persisting as an SSO does not need it's
> class annotated with @SessionState.
>
> AFAIU tapestry will instantiate any SSO that you access if it's null
> (you can override this behaviour). However of course any class fields
> will be null unless they get instantiated in the default constructor
> somehow.
>
> A very simple login might look like this (ignoring things like hashing
> passwords):
>
> @SessionState(create=false)
> private User user;
>
> @Property
> private String loginName;
> @Propety
> private String password;
>
> @Inject
> private UserDao userDao;
>
> private String onSuccessFromLoginForm() {
>
> user = userDao.get(loginName);
>
> if (user != null && user.getPassword().equals(password) {
> return "PrivatePage";
> } else {
> user = null; // if user is null not logged in
> }
> return null; // stay on login page
> }
>
> Now assuming the passwords matched, user should be non-null on other
> pages.
>
Yes the user is not null, as when I navigate from that page I display:
Logged in as: username
But the user_id still remains null for some reason.
Tryed setting it in the user constructor but no difference:
user(string user_id) {
this.user_id = user_id;}
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Re: org.apache.tapestry5.runtime.ComponentEventException
Posted by Rich M <ri...@moremagic.com>.
If you want it to return a String, do something like this. Also,
@SessionState would not be necessary in a class like this. The
@SessionState in your page class(es) will maintain the object for you.
public class User {
private String user_id;
public User getUser_id() { return user_id; }
public void setUser_id(String user_id){ this.user_id = user_id; }
public void setUser(User user){ this.user_id = user.getUser_id; }
}
If you haven't already done so at login or something along those lines
before a user gets to the page in question, you'll want to do something
like the following (maybe in onActivate rather, but I don't know your
application) otherwise it would make sense that the @SessionState User
user_id is null.
@SetupRender
void initUser(){
if(user_id == null || user_id.getUser_id() == null){
user_id = new User();
user_id.setUser_id( /* whatever the user_id String would be
that you need to set */ );
}
}
> Yes I have a method like that but it keep's returning null, my user class:
>
> //These were originally strings but changed in an effort to get
> working
>
> @SessionState
> private User user_id;
>
> public User getUser_id() {
> return user_id;
> }
>
> public void setUser_id(User user_id) {
> this.user_id = user_id;
> }
>
> then the in my page:
>
> @SessionState
> private User user;
>
> @Property
> private String user_id;
>
> public User getUser() {
> return user;
> }
>
> public void setUser(User user) {
> this.user = user;
> }
>
> prep.setString(1, user_id);
>
>
>
>
>
>
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RE: org.apache.tapestry5.runtime.ComponentEventException
Posted by Richard Hill <ri...@su3analytics.com>.
I haven't used the @SessionState annotation, I use the
ApplicationStateManager directly to store SSOs but a quick look at the
docs suggest it's doing the same thing.
Firstly, I don't understand your User class - it seems to also contain a
User field? Sounds like a stackoverflow in the making....
Secondly, whatever object you're persisting as an SSO does not need it's
class annotated with @SessionState.
AFAIU tapestry will instantiate any SSO that you access if it's null
(you can override this behaviour). However of course any class fields
will be null unless they get instantiated in the default constructor
somehow.
A very simple login might look like this (ignoring things like hashing
passwords):
@SessionState(create=false)
private User user;
@Property
private String loginName;
@Propety
private String password;
@Inject
private UserDao userDao;
private String onSuccessFromLoginForm() {
user = userDao.get(loginName);
if (user != null && user.getPassword().equals(password) {
return "PrivatePage";
} else {
user = null; // if user is null not logged in
}
return null; // stay on login page
}
Now assuming the passwords matched, user should be non-null on other
pages.
On Tue, 2011-03-01 at 07:01 -0800, robnangle wrote:
> Richard Hill-7 wrote:
> >
> >
> > Getting the user id depends on what public methods your user object has.
> > Presumably it has something like .getId() ?
> >
> >
> >
> > On Tue, 2011-03-01 at 06:44 -0800, robnangle wrote:
> >> Im probably wording the question wrong but that returns something like a
> >> memory address: Entities.User@12e7cb6
> >>
> >> I want to find the user_id of that user?
> >>
> >
> >
> >
> >
> >
>
> Yes I have a method like that but it keep's returning null, my user class:
>
> //These were originally strings but changed in an effort to get
> working
>
> @SessionState
> private User user_id;
>
> public User getUser_id() {
> return user_id;
> }
>
> public void setUser_id(User user_id) {
> this.user_id = user_id;
> }
>
> then the in my page:
>
> @SessionState
> private User user;
>
> @Property
> private String user_id;
>
> public User getUser() {
> return user;
> }
>
> public void setUser(User user) {
> this.user = user;
> }
>
> prep.setString(1, user_id);
>
>
>
>
>
>
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RE: org.apache.tapestry5.runtime.ComponentEventException
Posted by robnangle <ro...@gmail.com>.
Richard Hill-7 wrote:
>
>
> Getting the user id depends on what public methods your user object has.
> Presumably it has something like .getId() ?
>
>
>
> On Tue, 2011-03-01 at 06:44 -0800, robnangle wrote:
>> Im probably wording the question wrong but that returns something like a
>> memory address: Entities.User@12e7cb6
>>
>> I want to find the user_id of that user?
>>
>
>
>
>
>
Yes I have a method like that but it keep's returning null, my user class:
//These were originally strings but changed in an effort to get
working
@SessionState
private User user_id;
public User getUser_id() {
return user_id;
}
public void setUser_id(User user_id) {
this.user_id = user_id;
}
then the in my page:
@SessionState
private User user;
@Property
private String user_id;
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
prep.setString(1, user_id);
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RE: org.apache.tapestry5.runtime.ComponentEventException
Posted by Richard Hill <ri...@su3analytics.com>.
Getting the user id depends on what public methods your user object has.
Presumably it has something like .getId() ?
On Tue, 2011-03-01 at 06:44 -0800, robnangle wrote:
> Im probably wording the question wrong but that returns something like a
> memory address: Entities.User@12e7cb6
>
> I want to find the user_id of that user?
>
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RE: org.apache.tapestry5.runtime.ComponentEventException
Posted by Kristian Marinkovic <kr...@porscheinformatik.at>.
override the toString() implementation of your user entity... you can use
apache-commons ToStringBuilder.
Von: robnangle <ro...@gmail.com>
An: users@tapestry.apache.org
Datum: 01.03.2011 15:44
Betreff: RE: org.apache.tapestry5.runtime.ComponentEventException
Im probably wording the question wrong but that returns something like a
memory address: Entities.User@12e7cb6
I want to find the user_id of that user?
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RE: org.apache.tapestry5.runtime.ComponentEventException
Posted by robnangle <ro...@gmail.com>.
Im probably wording the question wrong but that returns something like a
memory address: Entities.User@12e7cb6
I want to find the user_id of that user?
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RE: org.apache.tapestry5.runtime.ComponentEventException
Posted by WINDEY Pieter AWL-IT <pi...@atosorigin.com>.
>>> Hi,
>>>Is there any way to convert the @Sessionstate user value to a string or a
>>>readable value?
Yes
user.toString() !
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Re: org.apache.tapestry5.runtime.ComponentEventException
Posted by robnangle <ro...@gmail.com>.
Hi,
Is there any way to convert the @Sessionstate user value to a string or a
readable value?
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Re: org.apache.tapestry5.runtime.ComponentEventException
Posted by robnangle <ro...@gmail.com>.
Hi ye the craeateDb() set's all of that. Got it sorted anyway, thanks people.
I didn'y fully understand the @Property annotation, that was my problem. All
the elements were null.
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Re: org.apache.tapestry5.runtime.ComponentEventException
Posted by Kristian Marinkovic <kr...@porscheinformatik.at>.
where is your connection (field conn) set?
Von: robnangle <ro...@gmail.com>
An: users@tapestry.apache.org
Datum: 01.03.2011 13:53
Betreff: Re: org.apache.tapestry5.runtime.ComponentEventException
Yes stupidly I forgot to set the connection but the errors remain. The
onSuccess():
public String onSuccess() throws Exception {
createDb();
String statement = "INSERT INTO
teams(user_id, team_name, keeper,
fullBack1, fullBack2, fullBack3, halfBack1, halfBack2, halfBack3,
midfield1,
midfield2, halfForward1, halfForward2, halfForward3, fullForward1,
fullForward2, fullForward3) VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?,
?,
?, ?, ?)";
prep = conn.prepareStatement(statement);
prep.setObject(1, team.getUser_id());
prep.setString(2, team.getTeam_name());
prep.setString(3, team.getKeeper());
prep.setString(4, team.getFullBack1());
prep.setString(5, team.getFullBack2());
prep.setString(6, team.getFullBack3());
prep.setString(7, team.getHalfBack1());
prep.setString(8, team.getHalfBack2());
prep.setString(9, team.getHalfBack3());
prep.setString(10, team.getMidfield1());
prep.setString(11, team.getMidfield2());
prep.setString(12,
team.getHalfForward1());
prep.setString(13,
team.getHalfForward2());
prep.setString(14,
team.getHalfForward3());
prep.setString(15,
team.getFullForward1());
prep.setString(16,
team.getFullForward2());
prep.setString(17,
team.getFullForward3());
prep.executeUpdate();
return "index";
}
I know its not a great idea to have the code in here, once working it will
be moved to the correct package.
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Re: org.apache.tapestry5.runtime.ComponentEventException
Posted by robnangle <ro...@gmail.com>.
Yes stupidly I forgot to set the connection but the errors remain. The
onSuccess():
public String onSuccess() throws Exception {
createDb();
String statement = "INSERT INTO teams(user_id, team_name, keeper,
fullBack1, fullBack2, fullBack3, halfBack1, halfBack2, halfBack3, midfield1,
midfield2, halfForward1, halfForward2, halfForward3, fullForward1,
fullForward2, fullForward3) VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?,
?, ?, ?)";
prep = conn.prepareStatement(statement);
prep.setObject(1, team.getUser_id());
prep.setString(2, team.getTeam_name());
prep.setString(3, team.getKeeper());
prep.setString(4, team.getFullBack1());
prep.setString(5, team.getFullBack2());
prep.setString(6, team.getFullBack3());
prep.setString(7, team.getHalfBack1());
prep.setString(8, team.getHalfBack2());
prep.setString(9, team.getHalfBack3());
prep.setString(10, team.getMidfield1());
prep.setString(11, team.getMidfield2());
prep.setString(12, team.getHalfForward1());
prep.setString(13, team.getHalfForward2());
prep.setString(14, team.getHalfForward3());
prep.setString(15, team.getFullForward1());
prep.setString(16, team.getFullForward2());
prep.setString(17, team.getFullForward3());
prep.executeUpdate();
return "index";
}
I know its not a great idea to have the code in here, once working it will
be moved to the correct package.
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Re: org.apache.tapestry5.runtime.ComponentEventException
Posted by "Thiago H. de Paula Figueiredo" <th...@gmail.com>.
On Tue, 01 Mar 2011 09:35:00 -0300, robnangle <ro...@gmail.com> wrote:
> Ye I noticed that but cant see what could be wrong with that line:
>
> Line 245:
> String statement = "INSERT INTO teams(user_id, team_name, keeper,
> fullBack1,
> fullBack2, fullBack3, halfBack1, halfBack2, halfBack3, midfield1,
> midfield2,
> halfForward1, halfForward2, halfForward3, fullForward1, fullForward2,
> fullForward3) VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
>
> Line 246:
> prep = conn.prepareStatement(statement);
The conn variable seems to be null. And are you sure you want JDBC code in
a Tapestry page?
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br
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Re: org.apache.tapestry5.runtime.ComponentEventException
Posted by robnangle <ro...@gmail.com>.
Ye I noticed that but cant see what could be wrong with that line:
Line 245:
String statement = "INSERT INTO teams(user_id, team_name, keeper, fullBack1,
fullBack2, fullBack3, halfBack1, halfBack2, halfBack3, midfield1, midfield2,
halfForward1, halfForward2, halfForward3, fullForward1, fullForward2,
fullForward3) VALUES(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
Line 246:
prep = conn.prepareStatement(statement);
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Re: org.apache.tapestry5.runtime.ComponentEventException
Posted by Bryan Lewis <jb...@gmail.com>.
The stack trace says you have an NPE in your onSuccess method, at
SelectPlayers.java:246. The ComponentEventException has little to do with
it... it's only saying the exception occurred during the 'success' event.
On Tue, Mar 1, 2011 at 7:18 AM, robnangle <ro...@gmail.com> wrote:
> I have seen a couple thru the forum but I dont think they apply to the
> error
> im getting.
>
> org.apache.tapestry5.runtime.ComponentEventException
> context
> eventType:
> action
> location:
> context:SelectPlayers.tml, line 10
> 5 <body>
> 6 <h1>Select Player</h1>
> 7
> 8
> 9
> 10 <t:form t:id="user_team">
> 11 <input align="center" t:type="TextField"
> t:id="team_name"
> size="25" value="team_name" />
> 12
> 13 <t:select t:id="goalkeeper" model="goalkeepers"
> value="keeper"/><br/><br/>
> 14
> 15 <t:select t:id="fullBack1" model="fullBack"
> value="fullBack1"/>
> org.apache.tapestry5.runtime.ComponentEventException
> context
> eventType:
> success
> location:
> context:SelectPlayers.tml, line 10
> java.lang.NullPointerException
> Hide uninteresting stack frames Stack trace
> FantasyGaa.pages.SelectPlayers.onSuccess(SelectPlayers.java:246)
> FantasyGaa.pages.SelectPlayers.dispatchComponentEvent(SelectPlayers.java)
>
> org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:902)
>