mcconnell 2003/08/30 12:59:15
Modified: merlin/merlin-platform/tutorials/dependencies/auto/src/java/tutorial
HelloComponent.java
Added: merlin/merlin-platform/tutorials/dependencies/auto/src/java/tutorial
Identifiable.java IdentifiableComponent.java
Log:
Add example of keyless dependency resolution.
Revision Changes Path
1.2 +5 -0
avalon-sandbox/merlin/merlin-platform/tutorials/dependencies/auto/src/java/tutorial/HelloComponent.java
Index: HelloComponent.java
===================================================================
RCS file:
/home/cvs/avalon-sandbox/merlin/merlin-platform/tutorials/dependencies/auto/src/java/tutorial/HelloComponent.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- HelloComponent.java 28 Aug 2003 17:26:39 -0000 1.1
+++ HelloComponent.java 30 Aug 2003 19:59:14 -0000 1.2
@@ -15,6 +15,7 @@
implements Initializable, Serviceable, Disposable
{
RandomGenerator m_random = null;
+ Identifiable m_identifiable = null;
/**
* Servicing of the component by the container during
@@ -24,17 +25,21 @@
* @param manager the service manager
* @avalon.dependency type="tutorial.RandomGenerator:1.0"
* key="random"
+ * @avalon.dependency type="tutorial.Identifiable"
*/
public void service( ServiceManager manager )
throws ServiceException
{
m_random = (RandomGenerator) manager.lookup( "random" );
+ m_identifiable =
+ (Identifiable) manager.lookup( Identifiable.class.getName() );
}
public void initialize()
{
getLogger().info( "initialization" );
getLogger().info( "received random value: " + m_random.getRandom() );
+ getLogger().info( "using identifiable: " + m_identifiable.getIdentity() );
}
public void dispose()
1.1
avalon-sandbox/merlin/merlin-platform/tutorials/dependencies/auto/src/java/tutorial/Identifiable.java
Index: Identifiable.java
===================================================================
package tutorial;
/**
* A service that provides access to a component identity.
*/
public interface Identifiable
{
/**
* Return a message indicating the component identify.
* @return the identity
*/
String getIdentity();
}
1.1
avalon-sandbox/merlin/merlin-platform/tutorials/dependencies/auto/src/java/tutorial/IdentifiableComponent.java
Index: IdentifiableComponent.java
===================================================================
package tutorial;
import org.apache.avalon.framework.logger.AbstractLogEnabled;
import org.apache.avalon.framework.context.Contextualizable;
import org.apache.avalon.framework.context.Context;
import org.apache.avalon.framework.context.ContextException;
/**
* The IdentifiableComponent implements Identifiable.
*
* @avalon.component version="1.0" name="simple" lifestyle="singleton"
* @avalon.service type="tutorial.Identifiable"
*/
public class IdentifiableComponent extends AbstractLogEnabled
implements Identifiable, Contextualizable
{
private String m_identity = null;
/**
* Contextualization of the component during which we
* establish the component identity.
*
* @param context the component context
* @avalon.entry key="urn:avalon:name"
* @avalon.entry key="urn:avalon:partition"
*/
public void contextualize( Context context )
throws ContextException
{
getLogger().info( "contextualize" );
String name = (String) context.get( "urn:avalon:name" );
String partition = (String) context.get( "urn:avalon:partition" );
m_identity = partition + name;
}
public String getIdentity()
{
return m_identity;
}
}
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