Package org.cdlib.xtf.textEngine.facet

This package contains classes that implement XTF's facet/grouping functionality.

See:
Description

Interface Summary

GroupCounts.DocHitMaker
GroupCounts.HitQueueMaker
SelectorParserConstants

Class Summary

ChildSelector	Select children of the incoming groups
DescendantSelector	Select all the group and all its descendants of the incoming groups
DocsSelector	Gather documents for all incoming groups.
DynamicGroupData	Abstract class representing dynamically generated group data for a facet query.
EmptySelector	Select empty or non-empty groups, according to a flag.
FacetSpec	Stores a facet specification, as part of a QueryRequest.
FRBRData	Keeps a large in-memory table of the title, author, and other info for each document.
FRBRGroupData	Implements a dynamic mapping from document to a FRBR-style title/author key.
GroupCounts	Maintains an ongoing count of groups and how many document hits were found in each group.
GroupData	This class contains a mapping, from documents to one or more term values in each document.
GroupSelector	Base class for the various selector classes that are chained together to execute a selection expression in a faceted query.
MarkSelector	Mark all incoming groups.
NameSelector	Filter out groups that don't match the given name.
PageSelector	Select page sets of siblings around selected groups
RangeSelector	Select a range of the incoming groups
ResultFacet	Records facet results from a single query.
ResultGroup	Records the results of a single group in field-grouped query.
RootSelector	Select top-level (root) groups
SelectedSelector	Select selected or non-selected groups, depending on a flag
SelectorParser
SelectorParserTokenManager
SiblingSelector	Select all siblings of each incoming group.
SimpleCharStream	An implementation of interface CharStream, where the stream is assumed to contain only ASCII characters (without unicode processing).
SingletonSelector	Pass only groups that are singletons, i.e. have no selected siblings.
StaticGroupData	This class contains the mapping, for a given field, from documents to one or more term values in that document.
Token	Describes the input token stream.
TopChoiceSelector	Select the top level of the hierarchy that has a choice.
UnionSelector	Pass incoming groups to a number of selectors.

Exception Summary

ParseException

This exception is thrown when parse errors are encountered.

Error Summary

TokenMgrError

Package org.cdlib.xtf.textEngine.facet Description

This package contains classes that implement XTF's facet/grouping functionality.