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OSGi : Develop Simple Apps

226 bytes removed, 23:56, 24 January 2011
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{{Ecl_activities|type=OSGi|type-repo=osgi}}__NOTOC__<h2>Bundels and Java Applications</h2>
# Check out the [https://guest:1673852@zenit.senecac.on.ca/svn/ecl500/Lectures/trunk/w11-osgi-simple-interface/ Service Interface]
# Check out the [https://guest:1673852@zenit.senecac.on.ca/svn/ecl500/Lectures/trunk/w11-osgi-simple-serviceprovider/ Service Provider]
# Check out the [https://guest:1673852@zenit.senecac.on.ca/svn/ecl500/Lectures/trunk/w11-osgi-simple-serviceconsumer/ Service Consumer]
<h3>[[Steps for Building Applications from Bundels]]</h3>
<strong>Steps for Building Bundels</strong> <h4>1. Study the Interfaces</h4> * [http://www.osgi.org/javadoc/r4v42/org/osgi/framework/Bundle.html Bundle]* [httpFile://wwwOSGi-DS.osgi.org/javadoc/r4v42/org/osgi/framework/BundleContext.html BundleContextpng|border|SOA in JVM|400px| ]* [http://www.osgi.org/javadoc/r4v42/org/osgi/framework/BundleActivator.html BundleActivator] <h4>2. Define the Bundle that provide the service (Provider Bundle)</h4><h5>2.1 Define the Java Interface that exposes the services</h5>Let us suppose that you want to define a service that allows the user to find a book from the book isbn. Then the interface should look similare with this one:<source lang="java">package cs.ecl.osgi.simple.bookfinder;
public interface BookFinder {<h2>Bundels and the Declarative Services</h2> Book findBook(int isbn) throws BookNotFoundException;# Check out the [https://guest:1673852@zenit.senecac.on.ca/svn/ecl500/Lectures/trunk/w11-osgi-simple-declarativeservice-consumer Declarative Service Consumer]}# Check out the [https://guest:1673852@zenit.senecac.on.ca/svn/ecl500/Lectures/trunk/w11-osgi-simple-declarativeservice-provider Declarative Service Provider]<h3>[[Steps for Building Declarative Services]]</sourceh3>
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