Space: Apache Tuscany Docs 2.x
(http://cwiki.apache.org/confluence/display/TUSCANYxDOCx2x)
Page: SCA Java implementation.widget
(http://cwiki.apache.org/confluence/display/TUSCANYxDOCx2x/SCA+Java+implementation.widget)
Added by Luciano Resende:
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h3.Introduction
The Tuscany Widget Implementation extends the SCA programing model to HTML
and/or Web 2.0 client applications.
h3.Using Implementation.Widget to model your Web 2.0 component
This component type allows you to model your HTML and/or Web 2.0 as an SCA
component, the implementation artifact would be html resource that represents
the application, and you can define SCA References, that would be wired to
server side services.
{code}
<composite xmlns="http://www.osoa.org/xmlns/sca/1.0";
xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0";
targetNamespace="http://store";
name="store">
<component name="store">
<t:implementation.widget location="contents/store.html"/>
<service name="Widget">
<t:binding.http/>
</service>
<reference name="catalog" target="Catalog">
<t:binding.jsonrpc/>
</reference>
<reference name="shoppingCart" target="ShoppingCart">
<t:binding.atom/>
</reference>
</component>
.....
</composite>
{code}
h3. Defining references in HTML resources
The widget implementation introduces SCA annotations to JavaScript code using
the syntax below. These references will get properly introspected by the
implementation.widget and wired to the proper server side services.
{code}
//@Reference
var catalog = new Reference("catalog");
//@Reference
var shoppingCart = new Reference("shoppingCart");
{code}
h3.Including generated JavaScript client proxy
The client application will need to include a generated JavaScript that will
contain the necessary client proxy used to access the server side services. The
name of the generated JavaScript is the same as the HTML resource being
specified as the implementation artifact.
{code}
<!-- one js include per sca component -->
<script type="text/javascript" src="store.js"></script>
{code}
h3.Supported binding types
Currently, you can define references to remote services using the following
bindings :
* [ATOM|SCA Java binding.atom]
* [JSON-RPC|SCA Java binding.jsonrpc]
* [HTTP|SCA Java binding.http]
h3.References
[http://incubator.apache.org/tuscany/getting-started-with-tuscany.html]
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