Re: No object provider exists for prefix 'string' ?

[Raul Raja Martinez]

I use HiveUtils (formerly hivetranse) ObjectBuilder for doing something 
similar. It also solves the problem of injecting dependencies into POJOS:

http://hivetranse.sourceforge.net/quickstart.html#start.objectbuilder
Here is some sample code:

hivemodule.xml

<contribution configuration-id="tapestry.state.ApplicationObjects">
 <state-object name="importantNewsArticles" scope="application">
  <invoke-factory object="object:ImportantNewsArticles" />
 </state-object>
</contribution>

<contribution configuration-id="hiveutils.ObjectBuilderObjects">
 <object name="ImportantNewsArticles" cached="true" 
class="com.estudiowebs.CMS.DAO.ImportantNewsArticles">
  <inject name="persistenceService" object="spring:persistenceService" />
 </object>
</contribution>


JAVA class

public class ImportantNewsArticles implements StateObjectFactory {

 private PersistenceService persistenceService;

 public void setPersistenceService(PersistenceService service) {
  this.persistenceService = service;
 }

 public ImportantNewsArticles() {
 }

 public Object createStateObject() {
  return yourASOObject;
 }

}



Notice how the persistenceService which is a spring managed bean gets 
injected into my ASO which is a regular POJO. In the same way you could 
inject anything that you might need to initialize your ASO.

I hope it helps.

Raul.


spamsucks wrote:
I am trying to inject an aso into tapestry using the StateObjectFactory.

My class "StorageAdapterFactory" implements the StateObjectFactory and 
has a property "fileSystemPath" with setter/getter on it.
I am trying to pass a String argument to my StateObjectFactory, but have 
get the error that "No object provider exists for prefix 'string' "

I have tried using nothing, and with "literal:" but both of these also 
fail.  Can someone point me to how I can pass a string to my factory?
A tired thanks (it's been tough getting this far!)

   <contribution configuration-id="tapestry.state.ApplicationObjects">
       <state-object name="stitchfolder-data" scope="application">   
                   <invoke-factory object="service:StorageAdapterFactory"/>
       </state-object>           </contribution>
          <service-point id="StorageAdapterFactory" 
interface="org.apache.tapestry.engine.state.StateObjectFactory">
       <invoke-factory>
           <construct 
class="org.authsum.stitches.adapter.StorageAdapterFactory">
               <set-object property="fileSystemPath" 
value="string:/usr/local/rhodepc/workspace/dmi/stitchfolder"/>
           </construct>
       </invoke-factory>
   </service-point>


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