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Posted to users@tapestry.apache.org by rosecorp <ro...@gmail.com> on 2012/10/19 22:36:53 UTC
Coercion exception in loop for Map
Hi Guys,
I am trying to sort out problem with coercion exception when I send a form
using GenericSelectModel but I'm not getting anywhere I'm afraid. Could you
give me a hand with that?
This is my Java code:
private Map<Filter, GenericSelectModel<? extends Filter>> fieldMap;
@Property
private Filter key;
public Set<Filter> getKeys() {
return fieldMap.keySet();
}
public GenericSelectModel<? extends Filter> getValue(){
return fieldMap.get(key);
}
where fieldMap is being initialized in @SetupRender with subtypes of Filter
interface and base on Filter type I choose genericSelectModel for it.
tml code:
<t:loop source="keys" value="key">
<t:select model="value" encoder="value" value="key" formState="none"/>
</t:loop>
I am getting following exception:
Caused by: org.apache.tapestry5.ioc.util.UnknownValueException: Could not
find a coercion from type java.lang.String to type zeepp.fieldfilter.Filter.
at
org.apache.tapestry5.ioc.internal.services.TypeCoercerImpl.findOrCreateCoercion(TypeCoercerImpl.java:276)
at
org.apache.tapestry5.ioc.internal.services.TypeCoercerImpl.access$000(TypeCoercerImpl.java:38)
at
org.apache.tapestry5.ioc.internal.services.TypeCoercerImpl$TargetCoercion.getCoercion(TypeCoercerImpl.java:94)
at
org.apache.tapestry5.ioc.internal.services.TypeCoercerImpl$TargetCoercion.coerce(TypeCoercerImpl.java:71)
at
org.apache.tapestry5.ioc.internal.services.TypeCoercerImpl.coerce(TypeCoercerImpl.java:147)
at $TypeCoercer_289900c49f8.coerce(Unknown Source)
at
org.apache.tapestry5.internal.services.TypeCoercedValueEncoderFactory$1.toValue(TypeCoercedValueEncoderFactory.java:45)
at
org.apache.tapestry5.corelib.components.Loop.restoreStateFromStoredClientValue(Loop.java:470)
at org.apache.tapestry5.corelib.components.Loop.access$500(Loop.java:64)
at
org.apache.tapestry5.corelib.components.Loop$RestoreStateFromStoredClientValue.execute(Loop.java:185)
at
org.apache.tapestry5.corelib.components.Loop$RestoreStateFromStoredClientValue.execute(Loop.java:174)
at
org.apache.tapestry5.corelib.components.Form.executeStoredActions(Form.java:661)
Thanks!
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RE: Coercion exception in loop for Map
Posted by "Athneria, Mahendra" <ma...@atos.net>.
With loop use formState property to get rid of below exception.
<t:loop source="keys" value="key" formState ="none">
<t:select model="value" encoder="value" value="key" formState="none"/>
</t:loop>
Hope it will solve your issue.
Regards,
Mahendra
-----Original Message-----
From: rosecorp [mailto:rosecorp.solutions@gmail.com]
Sent: Saturday, October 20, 2012 2:07 AM
To: users@tapestry.apache.org
Subject: Coercion exception in loop for Map
Hi Guys,
I am trying to sort out problem with coercion exception when I send a form
using GenericSelectModel but I'm not getting anywhere I'm afraid. Could you
give me a hand with that?
This is my Java code:
private Map<Filter, GenericSelectModel<? extends Filter>> fieldMap;
@Property
private Filter key;
public Set<Filter> getKeys() {
return fieldMap.keySet();
}
public GenericSelectModel<? extends Filter> getValue(){
return fieldMap.get(key);
}
where fieldMap is being initialized in @SetupRender with subtypes of Filter
interface and base on Filter type I choose genericSelectModel for it.
tml code:
<t:loop source="keys" value="key">
<t:select model="value" encoder="value" value="key" formState="none"/>
</t:loop>
I am getting following exception:
Caused by: org.apache.tapestry5.ioc.util.UnknownValueException: Could not
find a coercion from type java.lang.String to type zeepp.fieldfilter.Filter.
at
org.apache.tapestry5.ioc.internal.services.TypeCoercerImpl.findOrCreateCoercion(TypeCoercerImpl.java:276)
at
org.apache.tapestry5.ioc.internal.services.TypeCoercerImpl.access$000(TypeCoercerImpl.java:38)
at
org.apache.tapestry5.ioc.internal.services.TypeCoercerImpl$TargetCoercion.getCoercion(TypeCoercerImpl.java:94)
at
org.apache.tapestry5.ioc.internal.services.TypeCoercerImpl$TargetCoercion.coerce(TypeCoercerImpl.java:71)
at
org.apache.tapestry5.ioc.internal.services.TypeCoercerImpl.coerce(TypeCoercerImpl.java:147)
at $TypeCoercer_289900c49f8.coerce(Unknown Source)
at
org.apache.tapestry5.internal.services.TypeCoercedValueEncoderFactory$1.toValue(TypeCoercedValueEncoderFactory.java:45)
at
org.apache.tapestry5.corelib.components.Loop.restoreStateFromStoredClientValue(Loop.java:470)
at org.apache.tapestry5.corelib.components.Loop.access$500(Loop.java:64)
at
org.apache.tapestry5.corelib.components.Loop$RestoreStateFromStoredClientValue.execute(Loop.java:185)
at
org.apache.tapestry5.corelib.components.Loop$RestoreStateFromStoredClientValue.execute(Loop.java:174)
at
org.apache.tapestry5.corelib.components.Form.executeStoredActions(Form.java:661)
Thanks!
--
View this message in context: http://tapestry.1045711.n5.nabble.com/Coercion-exception-in-loop-for-Map-tp5717072.html
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Re: Coercion exception in loop for Map
Posted by rosecorp <ro...@gmail.com>.
I found a solution for future reference. I was using formState in wrong
place:
<t:loop source="keys" value="key" formState="iteration">
<t:select model="value" encoder="value" value="key" />
</t:loop>
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