IMPLEMENTATION PACKAGE TO no.sesat.search.query.
Therefore the dependency goes from this package to the query pacakge.
Provides the default implementation for the clauses in the query package.
It also contains the javacc parser components (eg QueryParser, AbstractQueryParser, ...),
and Visitor implementations (eg AbstractReflectionVisitor).
Javacc generates QueryParserImpl (extending AbstractQueryParser) into this package.