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Meta-data based method for local cache utilization

  • US 8,010,670 B2
  • Filed: 12/22/2004
  • Issued: 08/30/2011
  • Est. Priority Date: 12/23/2003
  • Status: Active Grant
First Claim
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1. A system for caching data using a client-server model, the system comprising:

  • a client proxy in communication with a client, and a server proxy in communication with a server hosting response data, wherein the client proxy and the server proxy are in communication with each other;

    a server computer comprising a processor configured to generate server proxy meta-data from a server proxy cache of response data to identify a server response data version, wherein the server proxy meta-data is distinct from the server response data; and

    ,a client computer comprising a processor configured to generate client proxy meta-data from a client proxy cache of response data to identify a client response data version, wherein the client proxy meta-data is computed independently of the server proxy meta-data and the client proxy meta-data is distinct from the client response data, and further configured to transmit the client proxy meta-data from the client proxy to the server proxy;

    wherein the server computer is further configured to compare the client proxy meta-data to the server proxy meta-data to determine if the response data version associated with the client proxy meta-data is valid.

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