Paxle is a framework targeted at indexing and searching documents. It is based on OSGi and already contains all modules needed to operate a search engine (crawler, indexer, storage, controlling the modules). However, in Paxle the modules are interchangable, following the model of Lego bricks.
You can just change the part you're interested in or which need to modify and thus with minimal effort, you get a full-fledged search engine adjusted to your needs which conforms to web-standards, because without any additional changes all other modules co-operate just as before.
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