Method for transferring data between modules by utilizing event mechanism in flex

An event mechanism and inter-module technology, applied in the direction of inter-program communication, multi-program installation, etc., can solve the problems of increasing the coupling between modules, code clutter, unfavorable maintenance and modification, etc., to achieve easy maintenance, clear structure, and elimination of dependencies. sexual effect

Inactive Publication Date: 2009-12-09
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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Problems solved by technology

Since the modules in flex are not loaded with the startup of the program, but are loaded dynamically during the running of the program, if module B has not been loaded, then module A will throw an exception when accessing the properties or methods of module B, only in the module Only when B has been loaded, module A can run normally, so that module A has ...

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Examples

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Embodiment

[0015] Assuming that the existing module A, module B, and module B need the data in module A, the method of using the event mechanism to transfer data between modules is as follows:

[0016] 1) The custom event class DataEvent is used to save and transmit data. The type of data to be transmitted can be any type recognized by the system, and it supports custom data types. The event class inherits from the flash.events.Event class, and adds one or more member variables for storing the data to be transferred.

[0017] 2) Create an instance of DataEvent in module A, save the data to be transferred into the variable defined in step 1, and then distribute the DataEvent event with the main program as the object of event distribution.

[0018] 3) In module B, set the monitoring of the event instance created in step 2. After listening to the event distributed by the main program, module B calls the corresponding processing method to separate the data carried in the event. In this way...

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Abstract

The invention provides a method for transferring data between modules of a flex application program, which comprises the steps of utilizing an event propagation mechanism of the flex to encapsulate the data into a customized event, and then transferring the event carrying the data from a source module to a target module and separating the data which is contained in the event from the target module for the target module to use, thereby achieving the purpose of transferring the data between the modules. The method has simple operation and easy maintenance, and eliminates the dependence between the modules. Because the event propagation mechanism of the flex is utilized by the method, the data transferring efficiency is high, and errors do not easily occur.

Description

technical field [0001] The invention relates to a method for transferring data between modules in flex development. The method is fast and reliable, can conveniently realize the interaction between modules, is easy to use, is convenient to maintain, and greatly reduces the coupling degree between modules, making each module more independent. Background technique [0002] At present, the method of transferring data between modules in flex is mainly realized by calling the method attribute between two modules, for example, accessing the attribute or method of module B in module A, so that the data of module A is transferred to module B middle. Since the modules in flex are not loaded with the startup of the program, but are loaded dynamically during the running of the program, if module B has not been loaded, then module A will throw an exception when accessing the properties or methods of module B, only in the module Only when B has been loaded, module A can run normally, s...

Claims

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Application Information

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IPC IPC(8): G06F9/54
Inventor 邸双朋魏健
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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