Author: pderop
Date: Tue Feb 2 23:41:12 2016
New Revision: 1728239
URL: http://svn.apache.org/viewvc?rev=1728239&view=rev
Log:
Finalized the first version of dm-lambda guide.
Modified:
felix/site/trunk/content/documentation/subprojects/apache-felix-dependency-manager/guides/dm-lambda.mdtext
Modified:
felix/site/trunk/content/documentation/subprojects/apache-felix-dependency-manager/guides/dm-lambda.mdtext
URL:
http://svn.apache.org/viewvc/felix/site/trunk/content/documentation/subprojects/apache-felix-dependency-manager/guides/dm-lambda.mdtext?rev=1728239&r1=1728238&r2=1728239&view=diff
==============================================================================
---
felix/site/trunk/content/documentation/subprojects/apache-felix-dependency-manager/guides/dm-lambda.mdtext
(original)
+++
felix/site/trunk/content/documentation/subprojects/apache-felix-dependency-manager/guides/dm-lambda.mdtext
Tue Feb 2 23:41:12 2016
@@ -304,7 +304,7 @@ So, the Activator looks like this:
Now, here is the implementation for our component which downloads the URL from
its init method. The init method will declare a "FutureDependency"
for the result of the `CompletableFuture<String>` returned by the HttpClient.
And once the result is injected
-in the setPage callback, then the start() callback will be called, and
finally, any registered Tracked service will be
+in the setPage callback, then the start() callback will be called, and
finally, any registered Tracked services will be
injected in the "bindTracked" method:
:::java
@@ -335,7 +335,7 @@ injected in the "bindTracked" method:
// We have downloaded the page, our component is starting
and is about to be registered
}
- void bind(Tracked service) {
+ void bindTracked(Tracked service) {
// a Tracked service is injected, we can handle it because we are
fully initialized.
// (optional service callbacks are always invoked after the start
callback).
}
@@ -344,7 +344,7 @@ injected in the "bindTracked" method:
So, using the Future Dependency we can nicely reuse the jdk CompletableFuture
as a required dependency. Without using the FutureDependency
on the CompletableFuture returned by the HttpClient, we would then have to
manually register our service using bundleContext.registerService(), and we
would then have to check if the webpage has been downloaded each time a
Tracked service is injected. And in case the page is not available, we would
-then have to cache the injected Tracked service and process it later, once the
page have been downloaded.
+then have to cache the injected Tracked service and process it later, once the
page has been downloaded.
Also, notice that when the page is injected in the setPage() method, you
absolutely don't need to deal with
synchronization at all because in DM, all lifecycle and dependency callbacks
are safely scheduled in a "serial queue" associated to the
