Uses of Interface
org.apache.calcite.rel.metadata.RelMetadataProvider

Packages that use RelMetadataProvider

Package	Description
org.apache.calcite.plan	Defines interfaces for constructing rule-based optimizers of relational expressions.
org.apache.calcite.plan.hep	Provides a heuristic planner implementation for the interfaces in org.apache.calcite.plan.
org.apache.calcite.plan.volcano	Optimizes relational expressions.
org.apache.calcite.rel.metadata	Defines metadata interfaces and utilities for relational expressions.
org.apache.calcite.tools	Provides utility classes.

Uses of RelMetadataProvider in org.apache.calcite.plan

Methods in org.apache.calcite.plan that return RelMetadataProvider

Modifier and Type	Method and Description
RelMetadataProvider	RelOptCluster.getMetadataProvider()

Methods in org.apache.calcite.plan with parameters of type RelMetadataProvider

Modifier and Type	Method and Description
void	RelOptCluster.setMetadataProvider(RelMetadataProvider metadataProvider) Overrides the default metadata provider for this cluster.

Method parameters in org.apache.calcite.plan with type arguments of type RelMetadataProvider

Modifier and Type	Method and Description
void	AbstractRelOptPlanner.registerMetadataProviders(List<RelMetadataProvider> list)
void	RelOptPlanner.registerMetadataProviders(List<RelMetadataProvider> list) Gives this planner a chance to register one or more RelMetadataProviders in the chain which will be used to answer metadata queries.

Uses of RelMetadataProvider in org.apache.calcite.plan.hep

Method parameters in org.apache.calcite.plan.hep with type arguments of type RelMetadataProvider

Modifier and Type	Method and Description
void	HepPlanner.registerMetadataProviders(List<RelMetadataProvider> list)

Uses of RelMetadataProvider in org.apache.calcite.plan.volcano

Classes in org.apache.calcite.plan.volcano that implement RelMetadataProvider

Modifier and Type	Class and Description
class	VolcanoRelMetadataProvider VolcanoRelMetadataProvider implements the RelMetadataProvider interface by combining metadata from the rels making up an equivalence class.

Method parameters in org.apache.calcite.plan.volcano with type arguments of type RelMetadataProvider

Modifier and Type	Method and Description
void	VolcanoPlanner.registerMetadataProviders(List<RelMetadataProvider> list)

Uses of RelMetadataProvider in org.apache.calcite.rel.metadata

Classes in org.apache.calcite.rel.metadata that implement RelMetadataProvider

Modifier and Type	Class and Description
class	CachingRelMetadataProvider Implementation of the RelMetadataProvider interface that caches results from an underlying provider.
class	ChainedRelMetadataProvider Implementation of the RelMetadataProvider interface via the Glossary.CHAIN_OF_RESPONSIBILITY_PATTERN.
class	DefaultRelMetadataProvider DefaultRelMetadataProvider supplies a default implementation of the RelMetadataProvider interface.
class	ReflectiveRelMetadataProvider Implementation of the RelMetadataProvider interface that dispatches metadata methods to methods on a given object via reflection.

Fields in org.apache.calcite.rel.metadata declared as RelMetadataProvider

Modifier and Type	Field and Description
static RelMetadataProvider	RelMdUniqueKeys.SOURCE
static RelMetadataProvider	RelMdDistinctRowCount.SOURCE
static RelMetadataProvider	RelMdPercentageOriginalRows.SOURCE
static RelMetadataProvider	RelMdCollation.SOURCE
static RelMetadataProvider	RelMdMemory.SOURCE Source for BuiltInMetadata.Memory.
static RelMetadataProvider	RelMdPopulationSize.SOURCE
static RelMetadataProvider	RelMdRowCount.SOURCE
static RelMetadataProvider	RelMdPredicates.SOURCE
static RelMetadataProvider	RelMdSize.SOURCE Source for BuiltInMetadata.Size.
static RelMetadataProvider	RelMdExplainVisibility.SOURCE
static RelMetadataProvider	RelMdColumnOrigins.SOURCE
static RelMetadataProvider	RelMdParallelism.SOURCE Source for BuiltInMetadata.Parallelism.
static RelMetadataProvider	RelMdColumnUniqueness.SOURCE
static RelMetadataProvider	RelMdSelectivity.SOURCE
static RelMetadataProvider	RelMdDistribution.SOURCE

Methods in org.apache.calcite.rel.metadata that return RelMetadataProvider

Modifier and Type	Method and Description
static RelMetadataProvider	ChainedRelMetadataProvider.of(List<RelMetadataProvider> list) Creates a chain.
static RelMetadataProvider	ReflectiveRelMetadataProvider.reflectiveSource(Method method, Object target) Returns an implementation of RelMetadataProvider that scans for methods with a preceding argument.
static RelMetadataProvider	ReflectiveRelMetadataProvider.reflectiveSource(Object target, Method... methods) Returns a reflective metadata provider that implements several methods.

Method parameters in org.apache.calcite.rel.metadata with type arguments of type RelMetadataProvider

Modifier and Type	Method and Description
static RelMetadataProvider	ChainedRelMetadataProvider.of(List<RelMetadataProvider> list) Creates a chain.

Constructors in org.apache.calcite.rel.metadata with parameters of type RelMetadataProvider

Constructor and Description
CachingRelMetadataProvider(RelMetadataProvider underlyingProvider, RelOptPlanner planner)
MetadataFactoryImpl(RelMetadataProvider provider)

Constructor parameters in org.apache.calcite.rel.metadata with type arguments of type RelMetadataProvider

Constructor and Description
ChainedRelMetadataProvider(com.google.common.collect.ImmutableList<RelMetadataProvider> providers) Creates a chain.

Uses of RelMetadataProvider in org.apache.calcite.tools

Methods in org.apache.calcite.tools with parameters of type RelMetadataProvider

Modifier and Type	Method and Description
static Program	Programs.hep(com.google.common.collect.ImmutableList<RelOptRule> rules, boolean noDag, RelMetadataProvider metadataProvider) Creates a program that executes a list of rules in a HEP planner.
static Program	Programs.of(HepProgram hepProgram, boolean noDag, RelMetadataProvider metadataProvider) Creates a program that executes a HepProgram.