What is the different between Stored, Tokenized, Indexed, and Vector?

• Stored = as-is value stored in the Lucene index
• Tokenized = field is analyzed using the specified Analyzer - the tokens emitted are indexed
• Indexed = the text (either as-is with keyword fields, or the tokens from tokenized fields) is made searchable (aka inverted)
• Vectored = term frequency per document is stored in the index in an easily retrievable fashion.