BlazeDS
Encyclopedia
BlazeDS is a server-based Java
remoting and web messaging technology
that allows you to connect to back-end distributed data and push data to Adobe Flex
and Adobe Integrated Runtime
(AIR) Rich Internet applications (RIA). Because of its open licensing, BlazeDS is not precluded from being used with other client platforms, such as JavaScript
/Ajax
.
Previously available only as part of Adobe LiveCycle
Data Services ES, on December 13, 2007 Adobe announced that the technologies included in BlazeDS, along with the Action Message Format
specification, were contributed to open source under the Lesser General Public License (LGPL v3) with the source code being available for download from early 2008. BlazeDS can be downloaded from the official page.
The Message Service provides a complete publish/subscribe
infrastructure allowing Flex clients and the server to exchange messages in real time. Remoting allows a Flex application to directly invoke methods of Java objects deployed in an application server.
BlazeDS applications consist of client-side code and server-side code. Client-side code is typically a Flex application
written in MXML and ActionScript and deployed as a SWF file. Server-side code is written in Java and deployed as
Java class files or Java Archive (JAR) files.
Java (programming language)
Java is a programming language originally developed by James Gosling at Sun Microsystems and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities...
remoting and web messaging technology
Message-oriented middleware
Message-oriented middleware is software or hardware infrastructure supporting sending and receiving messages between distributed systems. MOM allows application modules to be distributed over heterogeneous platforms and reduces the complexity of developing applications that span multiple...
that allows you to connect to back-end distributed data and push data to Adobe Flex
Adobe Flex
Adobe Flex is a software development kit released by Adobe Systems for the development and deployment of cross-platform rich Internet applications based on the Adobe Flash platform...
and Adobe Integrated Runtime
Adobe Integrated Runtime
Adobe Integrated Runtime, also known as Adobe AIR, is a cross-platform runtime environment developed by Adobe Systems for building Rich Internet Applications using Adobe Flash, Adobe Flex, HTML, and Ajax, that can be run as desktop applications or on mobile devices...
(AIR) Rich Internet applications (RIA). Because of its open licensing, BlazeDS is not precluded from being used with other client platforms, such as JavaScript
JavaScript
JavaScript is a prototype-based scripting language that is dynamic, weakly typed and has first-class functions. It is a multi-paradigm language, supporting object-oriented, imperative, and functional programming styles....
/Ajax
Ajax (programming)
Ajax is a group of interrelated web development methods used on the client-side to create asynchronous web applications...
.
Previously available only as part of Adobe LiveCycle
Adobe LiveCycle
Adobe LiveCycle Enterprise Suite is a SOA Java EE-based server software product from Adobe Systems Incorporated used to build applications that automate a broad range of business processes for enterprises and government agencies...
Data Services ES, on December 13, 2007 Adobe announced that the technologies included in BlazeDS, along with the Action Message Format
Action Message Format
Action Message Format is a binary format used to serialize objects graphs such ActionScript objects and XML, or send messages between an Adobe Flash client and a remote service, usually a Flash Media Server or third party alternatives....
specification, were contributed to open source under the Lesser General Public License (LGPL v3) with the source code being available for download from early 2008. BlazeDS can be downloaded from the official page.
The Message Service provides a complete publish/subscribe
Publish/subscribe
Publish–subscribe is a messaging pattern where senders of messages, called publishers, do not program the messages to be sent directly to specific receivers, called subscribers. Published messages are characterized into classes, without knowledge of what, if any, subscribers there may be...
infrastructure allowing Flex clients and the server to exchange messages in real time. Remoting allows a Flex application to directly invoke methods of Java objects deployed in an application server.
See also
- LiveCycle Data Services
- Flash Media Server
BlazeDS applications consist of client-side code and server-side code. Client-side code is typically a Flex application
written in MXML and ActionScript and deployed as a SWF file. Server-side code is written in Java and deployed as
Java class files or Java Archive (JAR) files.
Alternative Implementations
- WebORB for Java - supports four modes of integration (client-to-client, client-to-server, server-to-client, server-to-server). Supports Flash, Flex, Silverlight and AJAX clients. Provides remoting services, data management, real-time messaging, streaming media (Real Time Messaging ProtocolReal Time Messaging ProtocolReal Time Messaging Protocol was initially a proprietary protocol developed by Macromedia for streaming audio, video and data over the Internet, between a Flash player and a server...
) and many developer productivity tools. WebORB for Java Community Edition is free, but closed source. WebORB for Java Enterprise Edition is commercially available.