In most of the web applications users happen to browse through a large lists of data, may be resulted through a search. Often it is impractical to transmit the whole set of results as the list is often discarded after the first few elements are examined. Typically, a client uses the results of a query for read-only purposes, such as viewing the results list. In such situations transmitting the whole list, results in poor performance due to latency of response and need of large memory footprint. The Value List Handler pattern provides an efficient way while retrieving large amounts of data from the data sources.
OTN is publishing a series of sample applications for using different design patterns and has now made available a sample application using Value List Handler design pattern.
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