Home » Tag Archives: JBoss Envers

Tag Archives: JBoss Envers

How to maintain history of tables in Hibernate

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To Maintain history of database or keep track of modification of database table row , we create a version table that contains fields identical to original table.Whenever original table gets changed , we create another entry in version table. So for every update query , we have to write an insert query in version table . There is a module ...

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Generational caching and Envers

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Konrad recently shared on our company’s technical room an interesting article on how caching is done is a big polish social network, nk.pl. One of the central concepts in the algorithm is generational caching (see here or here). The basic idea is that for cache keys you use some entity-specific string + version number. The version number increases whenever data ...

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