Dual-component state token with state data direct access index for systems with high transaction volume and high number of unexpired tokens
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United States of America Patent
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Mar 31, 2009
Grant Date -
Nov 17, 2005
app pub date -
May 13, 2004
filing date -
May 13, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
Access to state data by a client process such as state data in an Online Transaction Processing arrangement is controlled through generation of and exchanging of a dual-component token. The first component of the token is an Index value which indirectly points to a block of state data assigned to process or user. The second component of the token is a sequence value, such as a Random Unique Sequence value, which is also associated with the block of state data for a process. With each transaction request, a user process provides the token to the OLTP server, which then verifies the sequence numbers of the state data and the token match before allowing access to the data.
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