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Portlets in Action by Ashish Sarin

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Chapter 15. Web Services for Remote Portlets (WSRP)

This chapter covers

  • WSRP concepts
  • Publishing portlets as a service
  • Consuming remote portlets as a service

Just as you’d expect, a web service is a service that’s accessible over the web. HTTP and XML form the backbone of web services, which fact makes them platform and language independent. Web services provide the means to achieve SOA (service-oriented architecture)—an architectural approach in which systems are composed of loosely coupled services.

In the context of SOA, a service refers to a functionality of value to the consumer of the web service. Amazon’s Fulfillment Web Service (Amazon FWS) is a good example of this concept. This feature allows merchants to request Amazon to physically ...

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