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Posted to users@tapestry.apache.org by intelli j <in...@webmail.co.za> on 2004/08/04 12:38:37 UTC
Simple Component
Hi,
I'm new to Tapestry (hopefully this post is not too
retarded...)
I'm trying to create a simple re-useable component with a
single parameter - for example rendering the necessary
fields for an Address. For example, our medically oriented
system has a ContactDetails object with two private address
objects, with the required setter/getters. No .java exists
for the component. Depending on my choice of param
direction I get differing results - I think the most
appropriate type for the direction is form - but this gives
ClassCastExceptions during rewind. The initial rendering of
the page works perfectly - it is only on submit that things
seem to go wrong. Changing the direction to auto doesn't
help much...
Parent Page Specification Extract:
<component id="edit_addressPhysical"
type="AddressComponent">
<binding name="address_data_source"
expression="medicalPersonnel.contactDetails.addressPhysical"/>
</component>
<component id="edit_addressPostal"
type="AddressComponent">
<binding name="address_data_source"
expression="medicalPersonnel.contactDetails.addressPostal"/>
</component>
AddressComponent.jwc:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE component-specification PUBLIC
"-//Apache Software Foundation//Tapestry Specification
3.0//EN"
"http://jakarta.apache.org/tapestry/dtd/Tapestry_3_0.dtd">
<component-specification
allow-informal-parameters="no">
<!--allow-body="no" -->
<parameter name="address_data_source"
direction="form"
required="yes"
type="smart.model.general.Address">
</parameter>
<component id="edit_Address1" type="TextField">
<binding name="value"
expression="address_data_source.address1"/>
</component>
<component id="edit_Address2" type="TextField">
<binding name="value"
expression="address_data_source.address2"/>
</component>
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Re: Simple Component
Posted by Jamie Orchard-Hays <ja...@dang.com>.
A couple of questions:
How are you using this? It's not clear from your email what you are
trying to accomplish by creating this component.
What is the error/stack trace you got?
If you just want to use the component for displaying, then you want
direction "in".
Jamie
On Aug 4, 2004, at 6:38 AM, intelli j wrote:
> Hi,
>
> I'm new to Tapestry (hopefully this post is not too
> retarded...)
>
> I'm trying to create a simple re-useable component with a
> single parameter - for example rendering the necessary
> fields for an Address. For example, our medically oriented
> system has a ContactDetails object with two private address
> objects, with the required setter/getters. No .java exists
> for the component. Depending on my choice of param
> direction I get differing results - I think the most
> appropriate type for the direction is form - but this gives
> ClassCastExceptions during rewind. The initial rendering of
> the page works perfectly - it is only on submit that things
> seem to go wrong. Changing the direction to auto doesn't
> help much...
>
> Parent Page Specification Extract:
> <component id="edit_addressPhysical"
> type="AddressComponent">
> <binding name="address_data_source"
> expression="medicalPersonnel.contactDetails.addressPhysical"/>
> </component>
> <component id="edit_addressPostal"
> type="AddressComponent">
> <binding name="address_data_source"
> expression="medicalPersonnel.contactDetails.addressPostal"/>
> </component>
>
> AddressComponent.jwc:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE component-specification PUBLIC
> "-//Apache Software Foundation//Tapestry Specification
> 3.0//EN"
> "http://jakarta.apache.org/tapestry/dtd/Tapestry_3_0.dtd">
>
> <component-specification
> allow-informal-parameters="no">
> <!--allow-body="no" -->
> <parameter name="address_data_source"
> direction="form"
> required="yes"
> type="smart.model.general.Address">
> </parameter>
>
> <component id="edit_Address1" type="TextField">
> <binding name="value"
> expression="address_data_source.address1"/>
> </component>
>
> <component id="edit_Address2" type="TextField">
> <binding name="value"
> expression="address_data_source.address2"/>
> </component>
> _____________________________________________________________________
> For super low premiums ,click here http://www.dialdirect.co.za/quote
>
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> To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tapestry-user-help@jakarta.apache.org
>
>
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