Facilitating the spread of knowledge and innovation in professional software development



Choose your language

InfoQ Homepage News Article: Schema for Web Services – Part I: Basic Datatypes

Article: Schema for Web Services – Part I: Basic Datatypes


In the first of a series of articles addressing the problems that arise when XML Schema types are mapped to programming language constructs, web services expert Dennis Sosnoski starts at the most basic level, looking at simple data types and the problems they create.

As Dennis writes:

Most web service applications don't work with XML documents directly, instead going through a data binding conversion layer within a web service toolkit. This is convenient for application developers, since it means they can work directly with data structures in their programming language of choice. But the data binding step needs to deal with mismatches between schema data types and structures and programming language data types and structures, and these mismatches can create problems for applications.

He continues to look in detail at XML Schema numeric types, time-related values, and references. For each of these, he outlines the problems and offers some concrete advice on how to handle them.

Check out the complete article.

We need your feedback

How might we improve InfoQ for you

Thank you for being an InfoQ reader.

Each year, we seek feedback from our readers to help us improve InfoQ. Would you mind spending 2 minutes to share your feedback in our short survey? Your feedback will directly help us continually evolve how we support you.

Take the Survey

Rate this Article


Hello stranger!

You need to Register an InfoQ account or or login to post comments. But there's so much more behind being registered.

Get the most out of the InfoQ experience.

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Community comments

  • Dates

    by Ben Murphy,

    Your message is awaiting moderation. Thank you for participating in the discussion.

    Handling of dates and datetime in xmlschema is such a terrible joke. They provide a type for the uncommon case which is a datetime with an optional timezone but don't provide specific types for the common cases which are datetime with a timezone and datetime without a timezone. It's like the writers of the schema have never written an application that has had to deal with dates.

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p

Allowed html: a,b,br,blockquote,i,li,pre,u,ul,p


Is your profile up-to-date? Please take a moment to review and update.

Note: If updating/changing your email, a validation request will be sent

Company name:
Company role:
Company size:
You will be sent an email to validate the new email address. This pop-up will close itself in a few moments.