26.7. Summary

In this chapter, I described how to integrate Flex client applications with Java Enterprise Edition application servers using BlazeDS. You learned the following:

• BlazeDS is a freely available, open-source implementation of the most popular features of LiveCycle Data Services.

• BlazeDS supports the Proxy Service, Remoting Service, and Message Service.

• The Proxy Service routes HTTP requests to remote domains, eliminating the need for cross-domain policy files.

• The Remoting Service enables Flex client applications to call remote methods of a Java- based class hosted by BlazeDS.

• The Remoting Service sends and receives messages in AMF, a binary format that results in much smaller messages than those that are encoded in XML and SOAP.

• The Flex SDK's RemoteObject component is one of the three RPC components, along with WebService and HTTPService.

• Data can be sent and received between client and server as simple values or as strongly typed value objects.

• You can enable RDS with BlazeDS to support the definition of data connections in Flash Builder 4.