Whether SOA can be Java Bean?

My final year project topic is Web-services using SOA. In this we were planning 开发者_Go百科to build individual components like Login, Profile Page, Captcha, etc.. We will then build a demo web application using those components.

I have two questions :

1. Do these components(Login, Profile Page, Captcha) qualify as services?

2. Can these components be built using Java Beans?

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1. They can be services, although almost anything request-able could be considered a service. You could implement it RESTfully and you could send the form in any format such as form-data(easiest), xml, or json.

2. Yes, especially from the standpoint of the data model. The data sent in can be populated into a java bean which is then processed.

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With an SOA you tend to write services such as Login etc and then write applications that leverage the services. Profile Page doesn't sound like a service to me. You could have a User Profile service and then a web application could use this service to build a profile page.