AEM Capability Matrix
I always get asked does AEM has any components that come out of the box (OOTB)? What is the list of OOTB component? Can I use them?
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Lucene Index Configuration in AEM
If you need to update index configuration to speed up your searches in AEM, you will need to add add an indexing_config.xml to your quickstart.
JCR Predicate Operations in AEM
Here are some samples of JCR search in AEM. There is very little doco on this so here it goes.