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E Behrangi E Behrangi 41 1 1 silver badge 9 9 bronze badges. Axis2 1. They are currently maintaining 1. You should start by upgrading to something more current.
Normally, the client waits till the response to its particular request arrives. In a non-blocking invocation, the client proceeds to the next step immediately, and the responses if any are handled using a Callback mechanism. Please note that some explanations use the terms Synchronous and Asynchronous to describe the similar invocation strategies. The following code fragment shows the necessary code calling echoString operation of the Axis2SampleDocLitService that we have already deployed.
The code is extremely simple to understand and the explanations are in the form of comments. Here we use null to make the stub use default configurations. However, you can make Axis2 use your own repository by providing it here.
You can find more information about this from the Axis2 Configuration section. The stubs also include a method that allows you to do a non-blocking innovation. These methods accept a callback object, which would be called when the response is received. Sample code that does an asynchronous interaction is given below. Even though the above code does a non-blocking invocation at the client API, the transport connection may still operate in a blocking fashion.
For example, a single HTTP connection can be used to create a Web Service request and to get the response when a blocking invocation happens at the transport level. To perform a "true" non-blocking invocation in which two separate transport connections are used for the request and the response, please add the following code segment after creating the stub. It will force Axis2 to use two transport connections for the request and the response while the client uses a Callback to process the response.
Note by creating the ConfigurationContext outside and passing it to the stubs, you could make number of stubs to use same repository, thus saving the configuration loading overhead from each request. Axis2 configuration is based on a repository and standard archive format.
A repository is a directory in the file system, and it should have the following:. Both services and modules will be identified and deployed once their archives are copied to the corresponding directories. At the server side, users should specify the repository folder at the time of starting the Axis2 Server e. At the client side, binary distribution can itself be a repository. You can copy the conf directory which includes the axis2. The Global configuration can be changed by editing the axis2.
Read Creating a Service from Scratch for more information. Also refer to Axis2 Configuration Guide for a reference on services. Each module. A module can be deployed by copying it to the modules directory in the repository.
Then it becomes available and can be engaged at a global, service or operation scope. Once engaged, it becomes active adds handlers to the execution flow at the respective scope. Please refer to Axis2 architecture guide for detailed explanation. The following table explains the semantics of scope, and how to engage modules in those scopes.
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