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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…
Read MoreXProc: An XML Pipeline Language
An XML Pipeline specifies a sequence of operations to be performed on a collection of XML input documents. Pipelines take zero or more XML documents as their input and produce zero or more XML documents as their output. A pipeline consists of steps. Like pipelines, steps take zero or more XML documents as their input…
Read MoreSML, What is it?
The Service Modeling Language (SML) provides a rich set of constructs for creating models of complex services and systems. Depending on the application domain, these models may include information such as configuration, deployment, monitoring, policy, health, capacity planning, target operating range, service level agreements, and so on. Models provide value in several important ways. Models…
Read MoreSome Useful -XX Options JDK 5 or higher
The options below are loosely grouped into three categories. Behavioral options change the basic behavior of the VM. Performance tuning options are knobs which can be used to tune VM performance. Debugging options generally enable tracing, printing, or output of VM information. Behavioral Options Option and Default Value Description -XX:-AllowUserSignalHandlers Do not complain if the…
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