Mercurial > dive4elements > gnv-client
comparison geo-backend/ChangeLog @ 541:3cbf11c67fdc
Experimental caching of SQL results via Ehache
geo-backend/trunk@462 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Fri, 18 Dec 2009 16:13:52 +0000 |
| parents | 27082b83c267 |
| children | f0b6d0e2a0f6 |
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| 385:27082b83c267 | 541:3cbf11c67fdc |
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| 1 2009-12-171 Sascha L. Teichmann <sascha.teichmann@intevation.de> | 1 2009-12-18 Sascha L. Teichmann <sascha.teichmann@intevation.de> |
| 2 | |
| 3 Experimental caching of SQL results via Ehache | |
| 4 | |
| 5 * pom.xml: Added dependency to Ehcache | |
| 6 | |
| 7 * src/main/java/de/intevation/gnv/geobackend/base/query/QueryExecutor.java: | |
| 8 Extended interface to support caching by SQL statements as Strings. | |
| 9 | |
| 10 * src/main/java/de/intevation/gnv/geobackend/base/query/QueryExecutorBase.java: | |
| 11 Implements new interface with no caching | |
| 12 | |
| 13 * src/main/java/de/intevation/gnv/geobackend/base/query/container/QueryContainerFactory.java: | |
| 14 synchronized access to singleton. | |
| 15 | |
| 16 * src/main/java/de/intevation/gnv/geobackend/base/query/DefaultQueryExceutor.java: | |
| 17 calls caching methods of base class. | |
| 18 | |
| 19 * src/main/java/de/intevation/gnv/geobackend/base/query/QueryExecutorFactory.java: | |
| 20 When system property 'query.executor.factory' is given the value is used as | |
| 21 a class name to be instantiated as a sub class of QueryExecutorFactory. | |
| 22 This happens if the singleton of QueryExecutorFactory is created. With the | |
| 23 mechanism it is possible to replace the standard behavior of creating QueryExecutors. | |
| 24 | |
| 25 * src/main/java/de/intevation/gnv/geobackend/base/query/CachingQueryExecutorFactory.java: | |
| 26 New: This class extends QueryExecutorFactory and can be used as replacement for | |
| 27 the standard QueryExecutorFactory. Usage: | |
| 28 | |
| 29 -Dquery.executor.factory=de.intevation.gnv.geobackend.base.query.CachingQueryExecutorFactory | |
| 30 | |
| 31 If you pass in another system property 'caching.query.executor.config' you can | |
| 32 customize the caching. The value is used as a file name to an XML file with | |
| 33 Ehcache configuration. | |
| 34 | |
| 35 * contrib/sql-cache.xml: Demo configuration for sql caching. Usage: | |
| 36 | |
| 37 -Dquery.executor.factory=de.intevation.gnv.geobackend.base.query.CachingQueryExecutorFactory | |
| 38 -Dcaching.query.executor.config=contrib/sql-cache.xml | |
| 39 | |
| 40 2009-12-17 Sascha L. Teichmann <sascha.teichmann@intevation.de> | |
| 2 | 41 |
| 3 RELEASE 0.3 | 42 RELEASE 0.3 |
| 4 | 43 |
| 5 * Changes, NEWS, ChangeLog: Summarized changes. | 44 * Changes, NEWS, ChangeLog: Summarized changes. |
| 6 | 45 |