SCA Java implementation.widget (TUSCANY) created by Luciano Resende
http://cwiki.apache.org/confluence/display/TUSCANY/SCA+Java+implementation.widget
Content:
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h3.Introduction
Implementation.widget extends the SCA programming model to web 2.0 client
applications.
As for creating a SCA component, below is an sample SCDL
{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="ufservices/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>
<component name="Catalog">
<implementation.java class="services.CatalogImpl"/>
<property name="currencyCode">USD</property>
<service name="Catalog">
<t:binding.jsonrpc/>
</service>
<reference name="currencyConverter" target="CurrencyConverter"/>
</component>
<component name="ShoppingCart">
<implementation.java class="services.ShoppingCartImpl"/>
<service name="Collection">
<t:binding.atom/>
</service>
</component>
<component name="CurrencyConverter">
<implementation.java class="services.CurrencyConverterImpl"/>
<property name="rate">0.7256</property>
</component>
</composite>
{code}
Declaring SCA references using JavaScript can be done with the syntax below.
This references will get properly introspected by the implementation.widget and
wired.
{code}
//@Reference
var catalog = new Reference("Catalog");
//@Reference
var shoppingCart = new Reference("ShoppingCart");
{code}
The client application will need to include a generated js, that has the same
name as the component being used.
{code}
<!-- one js include per sca component -->
<script type="text/javascript" src="store.js"></script>
{code}
Right now there is support for JSONRPC and Atom, and you can see all of this in
in action in sca/samples/store.
h3.References
[http://incubator.apache.org/tuscany/getting-started-with-tuscany.html]
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