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FAQ Entries in Lucene

What is the URL of Lucene's home page?
Are there any other Lucene FAQs out there?
Are there any mailing lists for those interested in finding out about releases, development, or user issues?
What Java version is required to run Lucene?
Where can I get the javadocs for the org.apache.lucene classes?
Is the QueryParser thread-safe?
Is the IndexSearcher thread-safe?
What happens when you IndexWriter.add() a document that is already in the index? Does it show up twice or does it overwrite the previous document?
How do I restrict searches to only return results from a limited subset of documents in the index (e.g. for privacy reasons)?
What is the best way to approach this?
How do I delete documents from the index?
What is the order of fields returned by Document.fields()?
How do I get the last document added that has a particular term?
Does MultiSearcher do anything particularly efficient to search multiple indices or does it simply search one after the other?
Is there a way to limit the size of an index?
Is there a way to use a proximity operator (like near or within) with Lucene?
Are Wildcard, Prefix, and Fuzzy queries case sensitive?
Is the IndexWriter class, and especially the method addIndexes(Directory[]) thread safe?
How can I get all documents in the index? Is there a query that will return all of them?
Why does IndexReader's maxDoc() return an 'incorrect' number of documents sometimes?
Do document IDs change after merging indices or after document deletion?
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