Package org.apache.calcite.adapter.enumerable

Query optimizer rules for Java calling convention.

See: Description

Interface Summary

Interface	Description
AggAddContext	Information for a call to AggImplementor.implementAdd(AggContext, AggAddContext).
AggContext	Information on the aggregate calculation context.
AggImplementor	Implements an aggregate function by generating expressions to initialize, add to, and get a result from, an accumulator.
AggregateLambdaFactory<TSource,TOrigAccumulate,TAccumulate,TResult,TKey>	Generates lambda functions used in EnumerableAggregate.
AggResetContext	Information for a call to AggImplementor.implementReset(AggContext, AggResetContext).
AggResultContext	Information for a call to AggImplementor.implementResult(AggContext, AggResultContext)
CallImplementor	Implements a call via given translator.
EnumerableRel	A relational expression of one of the EnumerableConvention calling conventions.
LazyAggregateLambdaFactory.LazyAccumulator<TOrigAccumulate,TSource>	Accumulate on the cached input sources.
NestedBlockBuilder	Allows to build nested code blocks with tracking of current context and the nullability of particular RexNode expressions.
NotNullImplementor	Simplified version of CallImplementor that does not know about null semantics.
PhysType	Physical type of a row.
RexToLixTranslator.InputGetter	Translates a field of an input to an expression.
WinAggAddContext	Information for a call to AggImplementor.implementAdd(AggContext, AggAddContext).
WinAggContext	Marker interface to allow AggImplementor to tell if it is used in regular or windowed context.
WinAggFrameContext	Provides information on the current window.
WinAggFrameResultContext	Provides information on the current window when computing the result of the aggregation.
WinAggImplementor	Implements a windowed aggregate function by generating expressions to initialize, add to, and get a result from, an accumulator.
WinAggResetContext	Information for a call to AggImplementor.implementReset(AggContext, AggResetContext).
WinAggResultContext	Information for a call to AggImplementor.implementResult(AggContext, AggResultContext).

Class Summary

Class	Description
AggImpState	Represents internal state when implementing aggregate functions.
BasicAggregateLambdaFactory<TSource,TAccumulate,TResult,TKey>	Implementation of AggregateLambdaFactory that applies a sequence of accumulator adders to input source.
BasicLazyAccumulator<TAccumulate,TSource>	Performs accumulation against a pre-collected list of input sources, used with LazyAggregateLambdaFactory.
EnumerableAggregate	Implementation of Aggregate in enumerable calling convention.
EnumerableAggregateRule	Rule to convert a LogicalAggregate to an EnumerableAggregate.
EnumerableBindable	Relational expression that converts an enumerable input to interpretable calling convention.
EnumerableBindable.EnumerableToBindableConverterRule	Rule that converts any enumerable relational expression to bindable.
EnumerableCalc	Implementation of Calc in enumerable calling convention.
EnumerableCalcRule	Rule to convert a LogicalCalc to an EnumerableCalc.
EnumerableCollect	Implementation of Collect in enumerable calling convention.
EnumerableCollectRule	Rule to convert an Collect to an EnumerableCollect.
EnumerableCorrelate	Implementation of Correlate in enumerable calling convention.
EnumerableCorrelateRule	Implementation of nested loops over enumerable inputs.
EnumerableFilter	Implementation of Filter in enumerable calling convention.
EnumerableFilterRule	Rule to convert a LogicalFilter to an EnumerableFilter.
EnumerableFilterToCalcRule	Variant of FilterToCalcRule for enumerable calling convention.
EnumerableHashJoin	Implementation of Join in enumerable calling convention.
EnumerableInterpretable	Relational expression that converts an enumerable input to interpretable calling convention.
EnumerableInterpretable.EnumerableNode	Interpreter node that reads from an Enumerable.
EnumerableInterpretable.StaticFieldDetector	A visitor detecting if the Java AST contains static fields.
EnumerableInterpreter	Relational expression that executes its children using an interpreter.
EnumerableInterpreterRule	Planner rule that converts BindableRel to EnumerableRel by creating an EnumerableInterpreter.
EnumerableIntersect	Implementation of Intersect in enumerable calling convention.
EnumerableIntersectRule	Rule to convert a LogicalIntersect to an EnumerableIntersect.
EnumerableJoinRule	Planner rule that converts a LogicalJoin relational expression enumerable calling convention.
EnumerableLimit	Relational expression that applies a limit and/or offset to its input.
EnumerableLimitRule	Rule to convert an Sort that has offset or fetch set to an EnumerableLimit on top of a "pure" Sort that has no offset or fetch.
EnumerableMergeJoin	Implementation of Join in enumerable calling convention using a merge algorithm.
EnumerableMergeJoinRule	Planner rule that converts a LogicalJoin relational expression enumerable calling convention.
EnumerableMinus	Implementation of Minus in enumerable calling convention.
EnumerableMinusRule	Rule to convert an LogicalMinus to an EnumerableMinus.
EnumerableNestedLoopJoin	Implementation of Join in enumerable calling convention that allows conditions that are not just = (equals).
EnumerableProject	Implementation of Project in enumerable calling convention.
EnumerableProjectRule	Rule to convert a LogicalProject to an EnumerableProject.
EnumerableProjectToCalcRule	Variant of ProjectToCalcRule for enumerable calling convention.
EnumerableRel.Result	Result of implementing an enumerable relational expression by generating Java code.
EnumerableRelImplementor	Subclass of RelImplementor for relational operators of EnumerableConvention calling convention.
EnumerableRelImplementor.TypeFinder	Visitor that finds types in an Expression tree.
EnumerableRepeatUnion	Implementation of RepeatUnion in enumerable calling convention.
EnumerableRepeatUnionRule	Rule to convert a LogicalRepeatUnion into an EnumerableRepeatUnion.
EnumerableRules	Rules and relational operators for the enumerable calling convention.
EnumerableSemiJoin	Deprecated This class is deprecated along with SemiJoin; the function is merged into EnumerableHashJoin; see EnumerableJoinRule for details.
EnumerableSemiJoinRule	Deprecated Use EnumerableJoinRule instead.
EnumerableSort	Implementation of Sort in enumerable calling convention.
EnumerableSortRule	Rule to convert an Sort to an EnumerableSort.
EnumerableTableFunctionScan	Implementation of TableFunctionScan in enumerable calling convention.
EnumerableTableFunctionScanRule	Planner rule that converts a LogicalTableFunctionScan relational expression enumerable calling convention.
EnumerableTableModify	Implementation of TableModify in enumerable calling convention.
EnumerableTableModifyRule	Planner rule that converts a LogicalTableModify relational expression enumerable calling convention.
EnumerableTableScan	Implementation of TableScan in enumerable calling convention.
EnumerableTableScanRule	Planner rule that converts a LogicalTableFunctionScan relational expression enumerable calling convention.
EnumerableTableSpool	Implementation of TableSpool in enumerable calling convention that writes into a ModifiableTable (which must exist in the current schema).
EnumerableTableSpoolRule	Rule to convert a LogicalTableSpool into an EnumerableTableSpool.
EnumerableUncollect	Implementation of Uncollect in enumerable calling convention.
EnumerableUncollectRule	Rule to convert an Uncollect to an EnumerableUncollect.
EnumerableUnion	Implementation of Union in enumerable calling convention.
EnumerableUnionRule	Rule to convert an LogicalUnion to an EnumerableUnion.
EnumerableValues	Implementation of Values in enumerable calling convention.
EnumerableValuesRule	Planner rule that converts a LogicalValues relational expression enumerable calling convention.
EnumerableWindow	Implementation of Window in enumerable calling convention.
EnumerableWindow.WindowRelInputGetter	Implementation of RexToLixTranslator.InputGetter suitable for generating implementations of windowed aggregate functions.
EnumerableWindowRule	Rule to convert a LogicalWindow to an EnumerableWindow.
EnumUtils	Utilities for generating programs in the Enumerable (functional) style.
JavaRelImplementor	Abstract base class for implementations of RelImplementor that generate java code.
LazyAggregateLambdaFactory<TSource,TKey,TOrigAccumulate,TResult>	Generate aggregate lambdas that preserve the input source before calling each aggregate adder, this implementation is generally used when we need to sort the input before performing aggregation.
LazyAggregateLambdaFactory.LazySource<TSource>	Cache the input sources.
NestedBlockBuilderImpl	Allows to build nested code blocks with tracking of current context and the nullability of particular RexNode expressions.
PhysTypeImpl	Implementation of PhysType.
ReflectiveCallNotNullImplementor	Implementation of NotNullImplementor that calls a given Method.
RexImpTable	Contains implementations of Rex operators as Java code.
RexImpTable.BinaryImplementor	Implementor for binary operators.
RexImpTable.BitOpImplementor	Implementor for the BIT_AND and BIT_OR aggregate function.
RexImpTable.CaseImplementor	Implementor for the SQL CASE operator.
RexImpTable.CastImplementor	Implementor for the SQL CAST operator.
RexImpTable.CastOptimizedImplementor	Implementor for the SQL CAST function that optimizes if, say, the argument is already of the desired type.
RexImpTable.CoalesceImplementor	Implementor for the SQL COALESCE operator.
RexImpTable.CollectImplementor	Implementor for the COLLECT aggregate function.
RexImpTable.CountImplementor	Implementor for the COUNT aggregate function.
RexImpTable.CountWinImplementor	Implementor for the COUNT windowed aggregate function.
RexImpTable.DatetimeArithmeticImplementor	Implementor for various datetime arithmetic.
RexImpTable.DenseRankImplementor	Implementor for the DENSE_RANK windowed aggregate function.
RexImpTable.ExtractImplementor	Implementor for the EXTRACT(unit FROM datetime) function.
RexImpTable.FirstLastValueImplementor	Implementor for the FIRST_VALUE and LAST_VALUE windowed aggregate functions.
RexImpTable.FirstValueImplementor	Implementor for the FIRST_VALUE windowed aggregate function.
RexImpTable.FloorImplementor	Implementor for the FLOOR and CEIL functions.
RexImpTable.FusionImplementor	Implementor for the FUSION aggregate function.
RexImpTable.GroupingImplementor	Implementor for the GROUPING aggregate function.
RexImpTable.IsXxxImplementor	Implements "IS XXX" operations such as "IS NULL" or "IS NOT TRUE".
RexImpTable.ItemImplementor	Implementor for the ITEM SQL operator.
RexImpTable.JsonArrayAggImplementor	Implementor for the JSON_ARRAYAGG aggregate function.
RexImpTable.JsonObjectAggImplementor	Implementor for the JSON_OBJECTAGG aggregate function.
RexImpTable.LagImplementor	Implementor for the LAG windowed aggregate function.
RexImpTable.LastValueImplementor	Implementor for the LAST_VALUE windowed aggregate function.
RexImpTable.LeadImplementor	Implementor for the LEAD windowed aggregate function.
RexImpTable.LeadLagImplementor	Implementor for the LEAD and LAG windowed aggregate functions.
RexImpTable.ListaggImplementor	Implementor for the LISTAGG aggregate function.
RexImpTable.MethodImplementor	Implementor for a function that generates calls to a given method.
RexImpTable.MethodNameImplementor	Implementor for SQL functions that generates calls to a given method name.
RexImpTable.MinMaxImplementor	Implementor for the MIN and MAX aggregate functions.
RexImpTable.NotImplementor	Implementor for the NOT operator.
RexImpTable.NthValueImplementor	Implementor for the NTH_VALUE windowed aggregate function.
RexImpTable.NtileImplementor	Implementor for the NTILE windowed aggregate function.
RexImpTable.RankImplementor	Implementor for the RANK windowed aggregate function.
RexImpTable.ReinterpretImplementor	Implementor for the REINTERPRET internal SQL operator.
RexImpTable.RowNumberImplementor	Implementor for the ROW_NUMBER windowed aggregate function.
RexImpTable.SingleValueImplementor	Implementor for the SINGLE_VALUE aggregate function.
RexImpTable.SumImplementor	Implementor for the SUM windowed aggregate function.
RexImpTable.SystemFunctionImplementor	Implementor for SQL system functions.
RexImpTable.TrimImplementor	Implementor for the TRIM function.
RexImpTable.UnaryImplementor	Implementor for unary operators.
RexImpTable.UserDefinedAggReflectiveImplementor	Implementor for user-defined aggregate functions.
RexImpTable.ValueConstructorImplementor	Implementor for a value-constructor.
RexToLixTranslator	Translates REX expressions to linq4j expressions.
RexToLixTranslator.InputGetterImpl	Implementation of RexToLixTranslator.InputGetter that calls PhysType.fieldReference(org.apache.calcite.linq4j.tree.Expression, int).
SourceSorter<TAccumulate,TSource,TSortKey>	Helper that combines the sorting process and accumulating process against the aggregate execution, used with LazyAggregateLambdaFactory.
StrictAggImplementor	The base implementation of strict aggregate function.
StrictWinAggImplementor	The base implementation of strict window aggregate function.

Enum Summary

Enum	Description
EnumerableConvention	Family of calling conventions that return results as an Enumerable.
EnumerableRel.Prefer	Preferred physical type.
JavaRowFormat	How a row is represented as a Java value.
NullPolicy	Describes when a function/operator will return null.
RexImpTable.NullAs	Strategy what an operator should return if one of its arguments is null.
WinAggImplementor.SeekType	Allows to access rows in window partition relative to first/last and current row.

Exception Summary

Exception	Description
RexToLixTranslator.AlwaysNull	Thrown in the unusual (but not erroneous) situation where the expression we are translating is the null literal but we have already checked that it is not null.

Package org.apache.calcite.adapter.enumerable Description

Query optimizer rules for Java calling convention.