Lucene 2.4.1 core API

Apache Lucene is a high-performance, full-featured text search engine library.

See: Description

Packages 
Package Description
org.apache.lucene
Top-level package.
org.apache.lucene.analysis
API and code to convert text into indexable/searchable tokens.
org.apache.lucene.analysis.standard
A fast grammar-based tokenizer constructed with JFlex.
org.apache.lucene.document
The logical representation of a Document for indexing and searching.
org.apache.lucene.index
Code to maintain and access indices.
org.apache.lucene.queryParser
A simple query parser implemented with JavaCC.
org.apache.lucene.search
Code to search indices.
org.apache.lucene.search.function
Programmatic control over documents scores.
org.apache.lucene.search.payloads
The payloads package provides Query mechanisms for finding and using payloads.
org.apache.lucene.search.spans
The calculus of spans.
org.apache.lucene.store
Binary i/o API, used for all index data.
org.apache.lucene.util
Some utility classes.
org.apache.lucene.util.cache  

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