Package org.apache.lens.cube.parse

Interface Summary

Interface	Description
AliasDecider
Candidate	This interface represents candidates that are involved in different phases of query rewriting.
CandidateTable	Candidate table interface
HQLParser.ASTNodeVisitor
QueryAST
QueryWriter
QueryWriterContext	Created on 03/04/17.
TimeRangeWriter

Class Summary

Class	Description
AbridgedTimeRangeWriter	Collapses the time range filters using IN operators
Aliased<T extends Named>
BetweenTimeRangeWriter	Writes partitions queried in timerange as between clause.
CandidateCoveringSetsResolver
CandidateDim	Holds context of a candidate dim table.
CandidateExploder	Created on 21/04/17.
CandidateTablePruneCause	Contains the cause why a candidate table is not picked for answering the query
CandidateUtil	Placeholder for Util methods that will be required for Candidate
CheckColumnMapping
CheckTableNames
ColumnLifetimeChecker
CubeQueryConfUtil	Contains all configurations of cube query rewriting.
CubeQueryContext
CubeQueryRewriter	Rewrites given cube query into simple storage table HQL.
CubeSemanticAnalyzer	Accepts cube query AST and rewrites into storage table query
DefaultAliasDecider
DefaultQueryAST
DenormalizationResolver	This class resolves all the reference columns that are queried.
DimHQLContext	Dimension HQLContext.
DimOnlyHQLContext	HQL context class which passes all query strings from CubeQueryContext and works with all dimensions to be queried.
FieldValidator	Validate fields based on cube queryability
HQLParser
HQLParser.HashableASTNode
HQLParser.TreeNode
JoinCandidate	Represents a join of two candidates
LightestFactResolver	Prune fact tables having more weight than minimum.
MultiCandidateQueryWriterContext	Created on 31/03/17.
ORTimeRangeWriter	Writes timerange partitions as an OR expression.
PartitionRangesForPartitionColumns
PruneCauses<T>
PruneCauses.BriefAndDetailedError
SegmentationCandidate	Created on 09/03/17.
SegmentationInnerRewriter	Created on 11/04/17.
SimpleHQLContext	Accepts strings of all expressions and constructs HQL query.
StorageCandidate	Represents a fact on a storage table and the dimensions it needs to be joined with to answer the query
StorageCandidateHQLContext	Created on 31/03/17.
StorageUtil
TimeRangeUtils
UnionCandidate	Represents a union of two candidates
UnionQueryWriter	Utility class to write union query.
ValidationRule

Enum Summary

Enum	Description
CandidateTablePruneCause.CandidateTablePruneCode
CandidateTablePruneCause.SkipUpdatePeriodCode
HQLParser.AppendMode