Gwt-rpc
Google Web Toolkit - Remote Procedure Calls
Requestfactory
RequestFactory is a component of the Google Web Toolkit that targets developers building data-oriented (CRUD) applications.
Others
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My understanding is the requestfactory is more efficient and recommended over gwt-rpc but it s more of a data entity persistence framework than a request-response framework like rpc from question GWT-RPC or RequestFactory for Authentication? |
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Go with gwt-rpc or better newer with requestfactory from question Best architecture for applications in GWT |
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More specifically requestfactory can update individual properties fields and can thus increase efficiency by sending the differences in state only;an important architectural difference is that gwt-rpc operates at a more functional level from question Pushing mysql query results to clients GWT |