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Asked: 2026-06-15T10:19:50+00:00

Iam trying to implement memcache in my web application and just wanted to get

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Iam trying to implement memcache in my web application and just wanted to get suggestions that whether what iam doing is right in terms of design.

I have a class SimpleDataAccessor which run all my insert, update and select sql queries. So any query that has to be performed is executed inside the method of this class.

So inside the method where I have my select query implementation i have a method which stores the resultset in memcache like this.

storeinMC(resultset.getJSON(),sqlquery);

the sqlquery here is my key.

Also before running the selectquery i check in memcache that whether I have a resultset already for that query.

if((String res=getRSFromMC(sqlquery)==null)

So i’ve tried to keep it plain and simple.
Do you see any issues with this.?

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1 Answer

  1. Editorial Team

    As rai.skumar rightfully pointed out your SQL statements could be constructed differently (e.g. WHERE clause could contain same conditions in diff order, etc.)

    So to overcome above mentioned issues, you need to parse your SQL and get all the relevant pieces from it. Then you can combine these pieces into a cache key.

    You can take a look at SQL parsers: ZQL, JSqlParser, General SQL Parser for Java that return you java classes out of your SQL.

    Another option would be to use JPA instead of straight JDBC. For example Hibernate has great JPA support and fully capable of caching your queries.

    If you feel closer to JDBC you could use MyBatis that has very JDBC like syntax and caching support.

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