The Networking Architecture of BlazeDS BlazeDS provides a clean separation of the Selection from Agile Enterprise Application Development with Flex [Book]. In this example I am going to use Spring+BlazeDS integration API for integrating backend Spring based J2EE layer into client layer Flex. So the User Interface is produced using Flex and to take care of the remoting we can use BlazeDS which is Open Source from Adobe. BlazeDS.
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Non-blocking channels allow for greater number of connections to be served provided they are not all active at the same time always.
Using Flex, BEA Workshop, and BlazeDS for Enterprise RIAs – James Ward
If the accessed data is not changing during the course of its reuse it always makes sense to cache it. Invocation of enterprjse Java methods from a Flex application. This streamlines BlazeDS web application deployment. Before moving on to the web application development you’ll want to test the Session Bean.
Using Flex, BEA Workshop, and BlazeDS for Enterprise RIAs
Number; public var regionName: Flex clients use channels to connect to these endpoints. Follow these steps to create the web application: The reason for this special need arises because of the way BlazeDS serializes data across the wire.
Remoting-config, proxy-config and messaging-config contain configuration pertaining to remote procedure calls, proxy services sith message services respectively. When an incoming or outgoing message hits the filter, serialization and deserialization occur. It enables remote procedure calls and message exchanges between the two platforms thereby helping couple together rich and engaging Flash platform based interfaces and robust enterprise servers.
Analogously, the Flex client defines a set of channels that vary depending on the type and format of communication.
Creating a new Flex project. The top level and the first of these four is services-config. January 20, at 6: Version 2 will wwith spring.
Over a million developers have joined DZone. Declarations element because it is not a user interface component. The web project is almost ready for deployment, now you just need to add a reference to the BlazeDS library.
Number; public var countryName: To generate the HR EJB entities from the database you need to add a database connection to your workbench. Jan 19, 6: The last step is to wth the Flex application and see the results.
Now all the configuration lavel part is done and move to Class lavel coding.
Accessing EJBs in Flex with Oracle WebLogic and BlazeDS
On endpoints that support translation and serialization between AS3 and Java or even web servicesa serialization filter is wih to intercept calls to the endpoint. When resources are pooled, they are shared over multiple clients. It is sith WebApplicationContext where all web-related components go. The next step is to add a JPA project to the workbench. The RTMP specification was proprietary until the beginning of this year and has most recently been opened up to public.
Make a note of the Context Root; you’ll need it for the Flash Builder project. Instead, you only need to add a reference to a shared library in the weblogic-application.
Integrating Flex, BlazeDS and Spring | Callista Enterprise
Among entwrprise, the BlazeDS proxy capabilities have three important use cases including:. Concurrent contracts Cross-domain utility layer Functional decomposition Fflex centralization State repository Caching If the accessed data is not changing during the course of its reuse it always makes sense to cache it.
Some of these are in-built, and some can be obtained from open source projects or can be custom built. Responses from BlazeDS follow the route back up from the endpoint to the channel. In addition to Flash Builder 4 and BlazeDS, you’ll need to download and install the following software: When you run the Java test application it will display a list of regions and countries see Figure Entrprise you install Eclipse 3.
Look at the next two figures for some insight into the context. Just have a look on this class.
Extending the scope of these frameworks to enterrpise interactions with Flex clients allows seamless persistence management. Prior to the existence of this project developers relied on custom factories to integrate Spring and BlazeDS. The configuration file services-config. Specifying the domain directory.
This breaks the lazy loading semantics, rendering the idea of proxies useless. Although it’s mentioned upfront that BlazeDS helps connect Flash platform applications to Java, it’s important to define it a bit further. The three alternative serverside message services in Spring BlazeDS are: