Google App Engine SDK 1.2.5

Das Update bringt interessante Neuerungen. Dazu zählen XMPP-Unterstützung. http://code.google.com/intl/de/appengine/docs/java/xmpp/:

An App Engine application can send and receive instant messages to and from any XMPP-compatible instant messaging service, such as Google Talk. An app can send and receive chat messages, send chat invites, and request status information. Incoming XMPP messages are handled by request handlers, similar to web requests.

Für Python gab es schon eine API für Aufgaben, die offline abgearbeitet werden konnten. Das gibt es es nun auch für Java, http://code.google.com/intl/de/appengine/docs/java/taskqueue/overview.html.

With the Task Queue API, applications can perform work outside of a user request but initiated by a user request. If an app needs to execute some background work, it may use the Task Queue API to organize that work into small, discrete units, called Tasks. The app then inserts these Tasks into one or more Queues. App Engine automatically detects new Tasks and executes them when system resources permit.

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