stablevalue.com a blog on stock market and things of interest
Articles

why did i choose to use typed dataset in web service?

Posted by btr Thu, 06 May 2004 02:59:59 GMT

pros
  • vs.net support on xsd and class generation via xsd.exe (drag and drop from data model to dataset plus some final touch)
  • existing data access framework support on mapping xsd to relational data and vise versa using data adapter (minimum coding required)
  • updategram that works well with the mappings defined in 2 (works really well for applications and no much coding required)
  • vs.net generated proxy works!
    • cons
  • locked in on .net (mitigation - provide alternative interface based on xsd for j2ee if required; there's a way to transform typed dataset into a similar xsd and generate corresponding wsdl; however, it works best for readonly data since there's no simple way to map the returned data back to relational data w/o writing additional codes )
  • increased data traffic due to schema being serialized (limit dataset usage to minimum; typed dataset for updatable data only)
  • in some cases, typed dataset is too vague or loose specially when there're more than one table defined (this point is counter balanced by the no 2 in pros. gain something then lose something else ...)

    • i ditched the idea of separating schema from dataset since it would require both ends to deal with schema anyway.
    i ditched the idea of not using dataset since it would require us to write tons of mapping code for relational data and updategram.

    everything works if designed and used properly. besides, everying around us is galaxy apart from soa world anyway.

    Posted in  | no comments

    Comments

    RSS feed for this post

    Comments are disabled

    Market News And Commentaries
    Updated at Sun Dec 18 01:25:01 -0500 2011
    How To Maintain An Optimal State

    No matter what the market conditions may be, especially in weeks like this, it is very good idea to do everything you can to stick to the normal trading routine. While none of us can control what the markets do, we can control what we do everyday to be in the right place at the [...] more

    Source: The Kirk Report
    Asian stocks fall on global growth concerns

    Asian stocks drift lower, taking their cue from Wall Street after the US Federal Reserve decides against fresh action to boost the economy more

    Source: Asia Pacific Equities Market Data - FT.com
    Market Week in Review

    more

    Source: BETWEEN THE HEDGES
    Apple falls to 3rd in China smartphone race

    Slipping in a market Tim Cook identified as "an area of enormous opportunity" more

    Source: Business and financial news - CNNMoney.com
    Always a great read to cut through the noise, fund manager Van Hoisington is still long Treasuries as the economy remains weak and inflation quiescent. The debt overhang has not been addressed and the punk U.S. savings rate - which began looking responsible for a short time - has sunk anew as consumers scratch to maintain spending. The Fed should banish thoughts of QE3 as QE2 helped stocks but killed real disposable income by stoking commodity prices.

    Always a great read to cut through the noise, fund manager Van Hoisington is Post your comment! more

    Source: SeekingAlpha.com: SA Currents
    Groupon (GRPN) Files For IPO As Another Tech Bubble Looms

    The IPO market is really beginning to catch fire with the tech industry partying like it’s 1999.  The party lights glowed and the DJ began spinning the beats before the LinkedIn (LNKD) IPO a couple weeks ago and the party will continue reaching a feverish pitch with a Groupon (GRPN) IPO.  more

    Source: SelfInvestors | ETFs, IPOs & Breakout Stocks
    Links for 2011-09-27 [del.icio.us]

    more

    Source: Maoxian
    Foreclosures: Next shoe to drop for banks?

    Bank stocks have been shellacked lately as investors worry about what impact the foreclosure scandal will have on the results for the nation's largest financial institutions. more

    Source: Market, personal finance, media, and technology expert commentary - CNNMoney.com
    Why Small Stocks Could Keep Rallying

    An improving U.S. economy and healthy profit margins point the way to small-stock outperformance. more

    Source: WSJ.com: Markets
    Christmas on credit

    Presents for one’s children do not seem like an optional extra though many families may struggle during this holiday, writes Tim Harford more

    Source: Financial Times - Comment
    Out of the Money Calendar Spreads

    This is a guest post by Derek Devore, an experienced options trader. Find out more about his OptionBoost Video Training Program at http://optionboost.com One of my favorite structures when I’m evaluating a position which is slow moving, but is on its way to reaching a particular price point, i more

    Source: StockTickr Trading Journal Blog
    NewsWatch: U.S. stocks expected to yield to Europe

    Wall Street faces a busy week in terms of economic reports that typically drive the stock market, but Europe will likely overshadow any data once again. more

    Source: MarketWatch.com - Top Stories
    December 15th, 2011 Stock Market Recap

    A very "blah" day for the markets. Nothing crazy exciting beyond Zynga (ZNGA) selling 100 million shares at $10 and starting its trading tomorrow alongside Research in Motion (RIMM) posting sour earnings (the stock is down over 7% after hours). Original post: December 15th, 2011 Stock Market Recap more

    Source: Stock Trading To Go