Tag Archives: SOA

Open source SOA registry – Membrane

I came across an open source SOA Registry named “Membrane” http://www.membrane-soa.org/soa-registry/ Membrane allows you to Register services by providing the hosted WSDL Allows definining of dependencies among services Checks for WS-I compliance of the service Periodically checks for availability of … Continue reading

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Use JAX-WS message handlers to address cross-cutting concerns: Caching

SOA adoption is often accompanied by the recognition of the need for a revamped approach for handling cross-cutting concerns such as logging, diagnostics and monitoring, security, error detection and reporting, performance etc.  All the shiny new services being developed on … Continue reading

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Semantic web-service descriptions using OWL-S

In this post https://buddhiraju.wordpress.com/2011/12/03/xsdannotations/  I described some of the problems with WSDL as a language to describe web-services. The key problem being that WSDL is a specification with focus on describing a web-service interface rather than the semantics of the web-service. … Continue reading

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Think REST – GET can be a very powerful verb

The basic idea about REST is to think of your system as a collection of resources (and their representations) which transition on one state to another when acted upon by messages. REST is a architecture style which applies constraints such … Continue reading

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Examples of xsd:appinfo

Continuing from my previous post, https://buddhiraju.wordpress.com/2011/12/03/xsdannotations/ here a few real-world usecases where the xsd:appinfo is  put to good use. For example, using xsd:appinfo you can override the default XML Schema to Java conversion logic applied by JAXB. <xsd:simpleType name=”ZipCodeType”> <xsd:annotation> <xsd:appinfo> … Continue reading

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Leverage XSD annotations to build richer XML schema

In the service-oriented enterprise IT landscape, XML schema is the default language used to describe information models. Products and IT departments today care less about the domain-model, and view the systems as a collection of services, orchestrated to perform business … Continue reading

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WS-BusinessActivity and BPEL

I was reading a bit of details about transactions, locking, distributed transaction etc till I stumbled upon a specification named WS-BusinessActivity / WS-BA. (Refer specification at this link) On first read it seemed to have a big functional overlap with BPEL … Continue reading

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