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;
}
}
Hope it helps.
Raul Raja.
Mike Pestorich wrote:
I am trying to contribute an object to tapestry's ASOs with session
scope and inject (or wire in) a Cayenne DataContext. I receive this error:
java.lang.NoSuchMethodException
setFactory
Stack Trace:
org.apache.hivemind.schema.rules.InvokeParentRule.findMethod(InvokeParentRule.java:127)
org.apache.hivemind.schema.rules.InvokeParentRule.begin(InvokeParentRule.java:58)
org.apache.hivemind.impl.SchemaElement.fireBegin(SchemaElement.java:228)
org.apache.hivemind.impl.SchemaProcessorImpl.processElement(SchemaProcessorImpl.java:255)
org.apache.hivemind.impl.SchemaProcessorImpl.processNestedElements(SchemaProcessorImpl.java:277)
org.apache.hivemind.impl.SchemaProcessorImpl.processElement(SchemaProcessorImpl.java:257)
org.apache.hivemind.impl.SchemaProcessorImpl.processRootElement(SchemaProcessorImpl.java:235)
...
I am new to hivemind and tapestry and I know that there are other ways
of doing this (and actually have got it to work those other ways) but am
trying to do things the way the tapestry and hivemind documentation
preach. I have been stuck on this for a little while now and it seems to
me that what I am trying to do should be working based on the
documentation I have read. However, I just reviewed a previous post on
this list from last December "Injecting registry services to POJOS" and
it looks like this person had the same problem as me. From that post it
looks like he eventually solved it using hiveutils. Before I add another
jar to my project and head in a different direction, I would like to
know what I am doing or where my thinking is wrong here.
===web.xml===
<web-app>
...
<listener>
<listener-class>org.objectstyle.cayenne.conf.WebApplicationContextProvider</listener-class>
</listener>
...
</web-app>
===DataContextService.java===
package com.pestorich.tapestry;
import org.objectstyle.cayenne.access.DataContext;
public interface DataContextService {
public DataContext getDataContext();
}
===DataContextServiceImpl.java===
package com.pestorich.tapestry;
import org.objectstyle.cayenne.access.DataContext;
public class DataContextServiceImpl implements DataContextService {
public DataContext getDataContext() {
return DataContext.getThreadDataContext();
}
}
===Session.java===
package com.pestorich.tapestry;
import java.io.Serializable;
import org.objectstyle.cayenne.access.DataContext;
import com.pestorich.tapestry.DataContextService;
public class Session implements Serializable {
private static final long serialVersionUID = 1L;
private DataContextService _dataContextService;
public Session() {}
public void setDataContextService(DataContextService
dataContextService) {
_dataContextService = dataContextService;
}
public DataContext getContext() {
return _dataContextService.getDataContext();
}
}
===hivemodule.xml===
<module id="com.pestorich.tapestry" version="1.0.0">
<service-point id="DataContextService">
<invoke-factory>
<construct class="DataContextServiceImpl" />
</invoke-factory>
<interceptor service-id="hivemind.LoggingInterceptor" />
</service-point>
<service-point id="Session">
<invoke-factory>
<construct class="Session" />
</invoke-factory>
</service-point>
<contribution configuration-id="tapestry.state.ApplicationObjects">
<state-object name="Session" scope="session">
<invoke-factory object="service:Session" />
</state-object>
</contribution>
</module>
Thanks for any help or criticism in advance. It's all greatly
appreciated :)
Mike
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