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Event Propagation Phases
There are three phases in event propagation where Flex looks for event listeners: Capturing phase: Flex checks to see which ancestors are registered as listener’s for the event starting from the root application object to the direct ancestor of the target Targeting phase: Flex invokes the target’s event listeners Bubbling phase: Each registered listener is…
Read MoreEvent Propagation Phases
There are three phases in event propagation where Flex looks for event listeners: Capturing phase: Flex checks to see which ancestors are registered as listener’s for the event starting from the root application object to the direct ancestor of the target Targeting phase: Flex invokes the target’s event listeners Bubbling phase: Each registered listener is…
Read MoreUpdate XML object
Its not easy to update XML object with Flex 3.0 and theres a work around… Lets walk with the example… Lets assume, you have xml object <root><child name=”c1″/></root> and update to <root><child name=”c1″>am child</child></root> var xmlObj:XML = new XML (<root><child name=”c1″/></root>); delete xmlObj.child[0]; param.appendChild( new XML(<child name=”c1″> am child</child>) ); Attribute xmlObj.child[0].@name = “am 1”;
Read MoreUpdate XML object
Its not easy to update XML object with Flex 3.0 and theres a work around… Lets walk with the example… Lets assume, you have xml object <root><child name=”c1″/></root> and update to <root><child name=”c1″>am child</child></root> var xmlObj:XML = new XML (<root><child name=”c1″/></root>); delete xmlObj.child[0]; param.appendChild( new XML(<child name=”c1″> am child</child>) ); Attribute xmlObj.child[0].@name = “am 1”;
Read MorePros & Cons of ESB
An ESB is expected to exhibit the following characteristics: It is usually operating-system and programming-language agnostic; for example, it should enable interoperability between Java and .NET applications. It uses XML (eXtensible Markup Language) as the standard communication language. It supports web-services standards. It supports various MEPs (Message Exchange Patterns) (e.g., synchronous request/response, asynchronous request/response, send-and-forget,…
Read MoreESB products
Market big players has Enterprise Service Bus (ESB) product and few are listed below… Open source http://www.jboss.org/jbossesb/ http://servicemix.apache.org/ https://open-esb.dev.java.net/ Commercial http://www-01.ibm.com/software/websphere/products/appintegration/esb/ http://www.bea.com/framework.jsp?CNT=index.htm&FP=/content/products/aqualogic/service_bus/ http://www.sonicsoftware.com/products/sonic_esb/index.ssp 100% not Open source http://www.mulesource.org/ (ref: http://weblog.infoworld.com/openresource/archives/2007/01/why_im_tired_of.html)
Read MoreEnterprise Service Bus (ESB)
Enterprise Service Bus (ESB) evolved to be the next generation of enterprise integration solutions, with message-oriented middleware (MOM) and web services being considered the closest relatives. However, ESB has a broader scope than MOM. For instance, ESB includes such services as coordination of business processes, or protocol transformation, that normally lay out of scope of…
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