Re: Another newbie question
Re: Another newbie question
- Subject: Re: Another newbie question
- From: Chuck Hill <email@hidden>
- Date: Sat, 2 Jan 2010 19:08:16 -0800
On Jan 2, 2010, at 6:52 PM, Mark Woollard wrote:
Thanks for the input - a couple of questions on this.
1) Can't find ResourceManagerAdditions - what do I need to add?
This is from the GVC Frameworks (http://www.global-village.net/chill/gvc_frameworks
). File attached.
Attachment:
ResourceManagerAdditions.java
Description: Binary data
2) Although not relevant for what I want to do, the frameworkName
parameter isn't used.
Use null, that is the WO standard for things in the Application bundle.
Chuck
On 3 Jan 2010, at 02:24, Chuck Hill wrote:
Hi Mark,
This not part of WO, possibly due to concerns about efficiency and
optimization (see JavaDoc below). You can add a method to your
component (or better, to a custom super class) to achieve this:
/**
* Allows a component to "inherit" the template (.html and .wod
files) from another component.
* <p>Usage:</p>
* <pre>
* public WOElement template() {
* return inheritTemplateFrom("AddAddress", "CoreUI");
* }
* </pre>
* This very simple implementation does have some limitations:
* <ol>
* <li>It can't he used to inherit the template of another
component inheriting a template.</li>
* <li>It can't handle having two components with the same name
in different packages</li>
* <li>It does not use WO template caching</li>
* </ol>
*
* @see com.webobjects.appserver.WOComponent#template()
*
* @param componentName the name of the component whose template
will be inherited
* @param frameworkName name of the framework the component is
in, or null if in the application
* @return the template form the indicated component
*/
public WOElement inheritTemplateFrom(String componentName, String
frameworkName)
{
String componentPath = componentName + ".wo/" + componentName
+ ".";
String htmlString =
ResourceManagerAdditions.stringFromResource(componentPath + "html",
null, session().languages());
String wodString =
ResourceManagerAdditions.stringFromResource(componentPath + "wod",
null, session().languages());
return WOComponent.templateWithHTMLString(htmlString,
wodString, session().languages());
}
Enjoy!
Chuck
On Jan 2, 2010, at 6:20 PM, Mark Woollard wrote:
Maybe expanding will make things clearer...
There is a base component FieldEditor which does in-place editing
using the AjaxInPlace component + 2 ERXWOTemplate instances for
the edit and view modes. I then am wanting to derive from this to
create StringFieldEditor / IntegerFieldEditor / etc that
specialize the java to provide view and edit values in different
ways as required. The html in FieldEditor component doesn't need
to change, and it doesn't make sense to me to have multiple copies
in the derived classes. What I'd like to happen is the base class
html be used and the overridden getter methods in the derived java
class provide the data for display. Is this an approach that
applicable to WO? If not how would this be approached to limit
duplication of code / html?
Thanks
Mark
On 3 Jan 2010, at 02:04, Andrew Lindesay wrote:
Hi Mark;
If I understand you correctly, I would typically create smaller
re-usable components to put into two different larger components.
cheers.
I have a component (java/html/api/woo/wod) and want to create a
derived component that specialises some of the java
functionality, but doesn't need to modify the html of the base
component. I can't figure out how to get the derived component
to return the base class html since the derived classes just
extend the java class.
___
Andrew Lindesay
www.lindesay.co.nz
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--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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