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Simple Angularjs app

This is a basic rest client app, very useful for creating demo page.

Backend

First, set up node.js as interface backend.
Dependencies:

  "dependencies": {

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HK2

Jersey 2 uses HK2 as dependency injection framework.
Although there are modules for integrating with Guice or Spring.
We can still just use HK2 to avoid using two frameworks for the same purposes.
Following snippets are two very basic sample for using HK2.

Sample

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Desc

Unlike java, python uses nested functions to implement decorators.

This could be tricky when we first try to understand.

A few features of python are applied:

1. python functions are objects.

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Roles

• Visitor interface

  Defines visit methods for all types that could be visited.

• Visitor implementations

  Defines visit behavior for different types.