com.facebook.presto.metadata

Class SqlAggregationFunction

java.lang.Object

com.facebook.presto.metadata.BuiltInFunction

com.facebook.presto.metadata.SqlAggregationFunction

All Implemented Interfaces:

SqlFunction

Direct Known Subclasses:

AbstractMinMaxAggregationFunction, AbstractMinMaxBy, AbstractMinMaxByNAggregationFunction, AbstractMinMaxNAggregationFunction, ApproximateMostFrequent, ArbitraryAggregationFunction, ArrayAggregationFunction, ChecksumAggregationFunction, CountColumn, DecimalAverageAggregation, DecimalSumAggregation, Histogram, MapAggregationFunction, MapUnionAggregation, MapUnionSumAggregation, MergeStatisticalDigestFunction, MultimapAggregationFunction, ParametricAggregation, RealAverageAggregation, ReduceAggregationFunction, SetAggregationFunction, SetUnionFunction, StatisticalDigestAggregationFunction

public abstract class SqlAggregationFunction
extends BuiltInFunction

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SqlAggregationFunction(Signature signature, SqlFunctionVisibility visibility)
protected	SqlAggregationFunction(String name, List<TypeVariableConstraint> typeVariableConstraints, List<LongVariableConstraint> longVariableConstraints, TypeSignature returnType, List<TypeSignature> argumentTypes)
protected	SqlAggregationFunction(String name, List<TypeVariableConstraint> typeVariableConstraints, List<LongVariableConstraint> longVariableConstraints, TypeSignature returnType, List<TypeSignature> argumentTypes, FunctionKind kind)

Method Summary

Modifier and Type	Method and Description
static List<SqlAggregationFunction>	createFunctionByAnnotations(Class<?> aggregationDefinition)
static List<SqlAggregationFunction>	createFunctionsByAnnotations(Class<?> aggregationDefinition)
Signature	getSignature()
SqlFunctionVisibility	getVisibility()
boolean	isDeterministic()
abstract BuiltInAggregationFunctionImplementation	specialize(BoundVariables boundVariables, int arity, FunctionAndTypeManager functionAndTypeManager)

Methods inherited from class com.facebook.presto.metadata.BuiltInFunction

isCalledOnNullInput

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.facebook.presto.spi.function.SqlFunction

getDescription

Constructor Detail

SqlAggregationFunction

protected SqlAggregationFunction(String name,
                                 List<TypeVariableConstraint> typeVariableConstraints,
                                 List<LongVariableConstraint> longVariableConstraints,
                                 TypeSignature returnType,
                                 List<TypeSignature> argumentTypes)

SqlAggregationFunction

protected SqlAggregationFunction(String name,
                                 List<TypeVariableConstraint> typeVariableConstraints,
                                 List<LongVariableConstraint> longVariableConstraints,
                                 TypeSignature returnType,
                                 List<TypeSignature> argumentTypes,
                                 FunctionKind kind)

SqlAggregationFunction

protected SqlAggregationFunction(Signature signature,
                                 SqlFunctionVisibility visibility)

Method Detail

createFunctionByAnnotations

public static List<SqlAggregationFunction> createFunctionByAnnotations(Class<?> aggregationDefinition)

createFunctionsByAnnotations

public static List<SqlAggregationFunction> createFunctionsByAnnotations(Class<?> aggregationDefinition)

getSignature

public final Signature getSignature()

getVisibility

public SqlFunctionVisibility getVisibility()

isDeterministic

public boolean isDeterministic()

specialize

public abstract BuiltInAggregationFunctionImplementation specialize(BoundVariables boundVariables,
                                                                    int arity,
                                                                    FunctionAndTypeManager functionAndTypeManager)