Well I want to make a single page application, so componentns (the
body part of a page)
will be injected as reference by hivemind into different jars.
Playng a bit with Tapestry src I've found a better way to do this, but
I need some more testing (assets, listeners, etc).
I'm investigating on this kind of solution becase this will optimize
dojo loading with incremental load.
What do you thik about this ?
kiuma
Here it is the code
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package org.jfly.sample.pages;
import org.jfly.sample.components.widgets.DynaRenderer;
import org.apache.hivemind.ApplicationRuntimeException;
import org.apache.hivemind.HiveMind;
import org.apache.hivemind.Location;
import org.apache.tapestry.AbstractPage;
import org.apache.tapestry.BaseComponent;
import org.apache.tapestry.IComponent;
import org.apache.tapestry.IMarkupWriter;
import org.apache.tapestry.INamespace;
import org.apache.tapestry.IPage;
import org.apache.tapestry.IRender;
import org.apache.tapestry.IRequestCycle;
import org.apache.tapestry.TapestryConstants;
import org.apache.tapestry.annotations.InjectObject;
import org.apache.tapestry.engine.IPageLoader;
import org.apache.tapestry.html.BasePage;
import org.apache.tapestry.pageload.ComponentClassProvider;
import org.apache.tapestry.pageload.ComponentClassProviderContext;
import org.apache.tapestry.pageload.PageLoader;
import org.apache.tapestry.resolver.ComponentSpecificationResolver;
import org.apache.tapestry.services.ComponentConstructor;
import org.apache.tapestry.services.ComponentConstructorFactory;
import org.apache.tapestry.services.ResponseBuilder;
import org.apache.tapestry.spec.ContainedComponent;
import org.apache.tapestry.spec.IComponentSpecification;
import org.apache.tapestry.spec.IContainedComponent;
import org.apache.tapestry.web.WebRequest;
import org.apache.hivemind.Messages;
import org.apache.tapestry.annotations.InjectObject;
import java.util.Date ;
/**
* Start page of application pageInjection.
*/
abstract public class Home extends BasePage {
private IRender renderer;
public IRender getRenderer() {
return renderer;
}
public Date getCurrentTime() {
return new Date();
}
@InjectObject("service:tapestry.page.ComponentClassProvider")
public abstract ComponentClassProvider getComponentClassProvider();
@InjectObject("service:tapestry.page.ComponentSpecificationResolver")
public abstract ComponentSpecificationResolver getComponentResolver();
@InjectObject("service:tapestry.enhance.ComponentConstructorFactory")
public abstract ComponentConstructorFactory
getComponentConstructorFactory();
@InjectObject("service:tapestry.page.PageLoader")
public abstract IPageLoader getPageLoader();
public IRender getDynaComp() {
IRequestCycle cycle = getEngine().getInfrastructure().getRequestCycle();
ComponentSpecificationResolver componentResolver =
getComponentResolver();
IPageLoader pageLoader = getPageLoader();
String componentType = DynaRenderer.class.getName();
Location location = getLocation();
componentResolver.resolve(cycle, getNamespace(),
componentType, location);
INamespace componentNamespace = componentResolver.getNamespace();
IComponentSpecification spec = componentResolver.getSpecification();
IContainedComponent contained = new ContainedComponent();
contained.setLocation(location);
contained.setType(componentType);
IComponent result = instantiateComponent(this, this, "message",
spec, componentResolver.getType(), componentNamespace,
contained);
//IRender result =
getPageLoader().createImplicitComponent(cycle, this, "message",
DynaRenderer.class.getName(), getLocation());
return result;
}
private IComponent instantiateComponent(IPage page, IComponent container,
String id, IComponentSpecification spec, String type,
INamespace namespace, IContainedComponent containedComponent)
{
ComponentClassProviderContext context = new
ComponentClassProviderContext(
type, spec, namespace);
String className =
getComponentClassProvider().provideComponentClassName(context);
if (HiveMind.isBlank(className))
className = BaseComponent.class.getName();
else
{
Class componentClass =
getEngine().getInfrastructure().getClassResolver().findClass(className);
if (!IComponent.class.isAssignableFrom(componentClass))
throw new ApplicationRuntimeException(componentClass +
" is not a component class", container, spec
.getLocation(), null);
if (IPage.class.isAssignableFrom(componentClass))
throw new ApplicationRuntimeException("Not assignable
" + id, container, spec.getLocation(),
null);
}
ComponentConstructor cc =
getComponentConstructorFactory().getComponentConstructor(spec,
className);
IComponent result = (IComponent) cc.newInstance();
result.setNamespace(namespace);
result.setPage(page);
result.setContainer(container);
result.setId(id);
result.setContainedComponent(containedComponent);
result.setLocation(containedComponent.getLocation());
return result;
}
}
On 5/31/07, Jesse Kuhnert <[EMAIL PROTECTED]> wrote:
Hmm I'm not sure. It doesn't look right but it's possible. Wouldn't
@Block be the easiest way to do it? Or different instances of IRender ?
On 5/31/07, Andrea Chiumenti <[EMAIL PROTECTED]> wrote:
>
> Is it right to do this ?
> public IRender getDynaComp() {
> IRequestCycle cycle =
> getEngine().getInfrastructure().getRequestCycle();
> IWorkerRender result;
> if ((cycle.getParameter("body") != null) &&
> (!(cycle.getParameter("body").equals(""))) ) {
> result = from a service via IOC <----
> result.setRenderWorker(getRenderWorker());
> } else {
> result = new DynaRenderer(); //Default
> result.setRenderWorker(getRenderWorker());
> }
> return result;
> }
>
> of course components must not be abstract.
>
>
> On 5/31/07, Andrea Chiumenti <[EMAIL PROTECTED]> wrote:
> > Hello I'd like to konw if in Tap 4.1.2 there is a way do dynamically
> > render components inside a page.
> >
> > If yes, how ?
> >
> > regards,
> > kiuma
> >
>
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>
>
--
Jesse Kuhnert
Tapestry/Dojo team member/developer
Open source based consulting work centered around
dojo/tapestry/tacos/hivemind. http://blog.opencomponentry.com
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