A query that matches a document containing a term.
Term query are the simplest possible Plucene queries and are used to match a
single word. Term queries are represented by instances of the TermQuery class
and contain the desired term (word) and a field name, both are case sensitive.
The field specified in a Term query must be a document field that was specified
as indexible during the indexing process. If the field was specified during
indexing as tokenized than the term will be matched against each of tokens
(words) found in that field, otherwise, it will be matched against the entire
content of that field.
A term query may have an optional boost factor (default = 1.0) that allows to
increase or decrease the ranking of documents it matches.