I have the JXPathBinding going and it seems to be working fine. Thanks
for all your help. I am more than happy to contribute the source if
there is any interest in it.
cheers
</jima>
Howard Lewis Ship wrote:
I don't follow you; I'm explaining what Tapestry does.
Well, I guess its this: if you use the property inside Java code,
then create an abstract getter and you're done. If the property is
only used inside the .page file (and/or the HTML template), then use a
<property> element. Generally, the latter case only applies to
properties used to hold the current value of a For loop.
On 10/12/05, Jim Alateras <[EMAIL PROTECTED]> wrote:
Howard,
Is there a best practice for this?
cheers
</jima>
Howard Lewis Ship wrote:
With a <property> element, Tapestry creates a read/write property of
type java.lang.Object.
Alternately, you can define getter or setters in the java code, and
omit the <property> element. This defines a property as well.
In both cases, Tapestry provides the instance variables and the getter
and setter methods in the enhanced subclass.
On 10/12/05, Jim Alateras <[EMAIL PROTECTED]> wrote:
Ron,
From my page specification (shown in the email trail) would Tapestry
define a public getter, called getDescriptor, for the property
'descriptor' or do I also need to define an abstract getter
cheers
</jima>
Ron Piterman wrote:
Using tapestry 4.0, you can either use <property ...> in your .page/.jwc
or add to your page/component class an abstract getter, or use both.
This is also how you access the property value:
add
public abstract String getDescriptor();
to your component/page class, and access the value throuw that method.
ציטוט Jim Alateras:
After further investigation it seems to be a problem with my
JXPathBinding class. I seem to be making an assumption about
properties declared in a page and where they are stored.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE page-specification PUBLIC
"-//Apache Software Foundation//Tapestry Specification 4.0//EN"
"http://jakarta.apache.org/tapestry/dtd/Tapestry_4_0.dtd";>
<page-specification class="org.openvpms.app.tapestry.pages.Home">
<inject property="archetypeService" object="spring:archetypeService"/>
<property name="descriptor"/>
<property name="archetypeDescriptors" />
</page-specification>
Tapestry creates a new class called $Home_0, which includes the
properties defined in the page-specification in addition to some other
stuff as shown below
My question is how do I access fields such as _$descriptor from the
*root* object.
this= JXPathBinding (id=175)
_description= "template parameter source"
_location= LocationImpl (id=246)
_valueConverter= $ValueConverter_106e316a8d8 (id=249)
contextObjectName= "archetypeService"
path= "archetypeDescriptors"
root= $Home_0 (id=186)
_$actService= null
_$actService$defaultValue= null
_$archetypeDescriptors= null
_$archetypeDescriptors$default= null
_$archetypeService= ArchetypeService (id=278)
_$componentMessagesSource=
$ComponentMessagesSource_106e316a910 (id=281)
_$descriptor= null
_$descriptor$default= null
_$entityService= null
_$entityService$defaultValue= null
_$lookupService= null
_$lookupService$defaultValue= null
_$messages= null
_$specification= ComponentSpecification (id=284)
_active= true
_assets= null
_beans= null
_bindings= null
_body= null
_bodyCount= 0
_changeObserver= PageRecorderImpl (id=290)
_components= HashMap<K,V> (id=294)
_containedComponent= null
_container= null
_engine= OpenVpmsEngine (id=196)
_id= null
_idPath= null
_listenerList= EventListenerList (id=301)
_listeners= null
_locale= Locale (id=303)
_location= LocationImpl (id=305)
_namespace= Namespace (id=306)
_outer= IRender[5] (id=310)
_outerCount= 1
_outputEncoding= null
_page= $Home_0 (id=186)
_pageName= "Home"
_rendering= true
_requestCycle= RequestCycle (id=188)
_visit= null
delegate= null
errorMessage= null
message= null
cheers
</jima>
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--
Howard M. Lewis Ship
Independent J2EE / Open-Source Java Consultant
Creator, Jakarta Tapestry
Creator, Jakarta HiveMind
Professional Tapestry training, mentoring, support
and project work. http://howardlewisship.com
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Howard M. Lewis Ship
Independent J2EE / Open-Source Java Consultant
Creator, Jakarta Tapestry
Creator, Jakarta HiveMind
Professional Tapestry training, mentoring, support
and project work. http://howardlewisship.com
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