From the tapestry users mailing list, where else . . . !
/Brian. On 9/1/06, Hajaansh <[EMAIL PROTECTED]> wrote:
Perfect. Where did you find that the name for the engine service was engine-service:direct ? On 9/1/06, Brian Long <[EMAIL PROTECTED]> wrote: > > Hajaansh, > > had the same problem myself when moving from 3 to 4, so here are the > updated > AreaLink.jwc and AreaLink.java that I use. The main difference in the use > of > property injection for the engine service. > > AreaLink.jwc > > <?xml version="1.0" encoding="UTF-8"?> > <!DOCTYPE component-specification PUBLIC > "-//Apache Software Foundation//Tapestry Specification 4.0//EN" > "http://jakarta.apache.org/tapestry/dtd/Tapestry_4_0.dtd";> > > <component-specification > class="com.yourProject.web.page.AreaLink" > allow-body="no" > allow-informal-parameters="yes"> > > <!--<inject property="directService" object="engine-service:direct"/>--> > > <description> > Creates a non-contextual link. Non-persistent state can be stored within > the link > using the context. > </description> > > <parameter name="listener" required="yes" /> > > <parameter name="parameters" > > <description> > An object, or list of objects, encoded into the URL > as service parameters. > </description> > </parameter> > > <reserved-parameter name="href"/> > > </component-specification> > > AreaLink.java > > package com.annadaletech.yourProject.web.jwc; > > import org.apache.tapestry.AbstractComponent; > import org.apache.tapestry.IActionListener; > import org.apache.tapestry.IDirect; > import org.apache.tapestry.IMarkupWriter; > import org.apache.tapestry.IRequestCycle; > import org.apache.tapestry.Tapestry; > import org.apache.tapestry.annotations.InjectObject; > import org.apache.tapestry.engine.DirectServiceParameter; > import org.apache.tapestry.engine.IEngineService; > import org.apache.tapestry.engine.ILink; > import org.apache.tapestry.link.DirectLink; > > public abstract class AreaLink extends AbstractComponent implements > IDirect > { > > public abstract Object getParameters(); > public abstract IActionListener getListener(); > > @InjectObject("engine-service:direct") > public abstract IEngineService getDirectService(); > > public void renderComponent(IMarkupWriter writer, IRequestCycle cycle) > { > if (cycle.isRewinding()) > return; > > Object[] parameters = DirectLink.constructServiceParameters > (getParameters()); > > //IEngineService service = getDirectService(); > DirectServiceParameter dsParam = new > DirectServiceParameter(this,parameters); > ILink link = getDirectService().getLink(false,dsParam); > > writer.beginEmpty("area"); > writer.attribute("href",link.getURL()); > > renderInformalParameters(writer,cycle); > } > > public void trigger(IRequestCycle cycle) > { > IActionListener listener = getListener(); > > if (listener == null) > throw Tapestry.createRequiredParameterException(this, > "listener"); > > listener.actionTriggered(this, cycle); > } > > public boolean isStateful() > { > return false; > } > > } > > hivemodule.xml > > <contribution configuration-id="tapestry.url.ServiceEncoders"> > <direct-service-encoder id="direct" stateless-extension="direct" > stateful-extension="sdirect"/> > </contribution> > > yourProject.application > > <component-type type="AreaLink" specification-path="jwc/AreaLink.jwc" /> > > I hope this helps . . . > > /Brian. > > On 9/1/06, Hajaansh <[EMAIL PROTECTED]> wrote: > > I was wondering how to make a DirectArea component (getting callbacks on > > Image Maps) for Tapestry 4 as the implementation for Tapestry 3 does not > > work in Tapestry 4. > > > > And clues? I was looking at using the ILinkRenderer but to be honest I > am > > just getting in a muddle. > > > > Cheers, > > > > Hajaash > > > > > >
