Package org.terrier.matching.matchops

This package contains matching Operators.

See: Description

Interface Summary

Interface	Description
MatchOpQLParserConstants	Token literal values and constants.

Class Summary

Class	Description
ANDQueryOp	This combines multiple operators into a single op, where must all occur in a document.
DateRangeOp
FuzzyTermOp	A synonym class that uses leveinsten distance to match terms.
MatchingEntry	A MatchingEntry is the application of a matching Operator to the index at hand, i.e.
MatchOpQLParser
MatchOpQLParserTokenManager	Token Manager.
MultiTermOp	this is an abstract operator, which implements common functionalities for operators that consist of multiple terms.
Operator	A match op is a possible query "term" in the query
PhraseOp	This combines multiple operators into a single op, where they occur adjacently.
PrefixTermOp	A synonym class that matches terms with a common prefix in the lexicon.
SimpleCharStream	An implementation of interface CharStream, where the stream is assumed to contain only ASCII characters (without unicode processing).
SingleTermOp	This class implements a single indexing token as a matching op.
SynonymOp	This combines multiple operators into a single op.
Token	Describes the input token stream.
UnorderedWindowOp	This combines multiple operators into a single op, where they occur within a specified window of tokens.

Exception Summary

Exception	Description
ParseException	This exception is thrown when parse errors are encountered.

Error Summary

Error	Description
TokenMgrError	Token Manager Error.

Package org.terrier.matching.matchops Description

This package contains matching Operators. These allow multiple entries from the inverted index posting list to be used within a single query. In general, operators are inspired by the Indri/Galago query language

Since:

5.0