com.facebook.presto.operator.aggregation

Class AbstractMinMaxAggregationFunction

java.lang.Object

com.facebook.presto.metadata.BuiltInFunction

com.facebook.presto.metadata.SqlAggregationFunction

com.facebook.presto.operator.aggregation.AbstractMinMaxAggregationFunction

All Implemented Interfaces:

SqlFunction

Direct Known Subclasses:

MaxAggregationFunction, MinAggregationFunction

public abstract class AbstractMinMaxAggregationFunction
extends SqlAggregationFunction

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractMinMaxAggregationFunction(String name, boolean min)

Method Summary

Modifier and Type	Method and Description
static void	combine(MethodHandle methodHandle, NullableBooleanState state, NullableBooleanState otherState)
static void	combine(MethodHandle methodHandle, NullableDoubleState state, NullableDoubleState otherState)
static void	combine(MethodHandle methodHandle, NullableLongState state, NullableLongState otherState)
protected BuiltInAggregationFunctionImplementation	generateAggregation(Type type, MethodHandle compareMethodHandle)
static void	input(MethodHandle methodHandle, NullableBooleanState state, boolean value)
static void	input(MethodHandle methodHandle, NullableDoubleState state, double value)
static void	input(MethodHandle methodHandle, NullableLongState state, long value)
static void	maxCombine(Type type, BlockPositionState state, BlockPositionState otherState)
static void	maxInput(Type type, BlockPositionState state, Block block, int position)
static void	minCombine(Type type, BlockPositionState state, BlockPositionState otherState)
static void	minInput(Type type, BlockPositionState state, Block block, int position)
protected Type	overrideIntermediateType(Type inputType, Type defaultIntermediateType)
BuiltInAggregationFunctionImplementation	specialize(BoundVariables boundVariables, int arity, FunctionAndTypeManager functionAndTypeManager)

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

createFunctionByAnnotations, createFunctionsByAnnotations, getSignature, getVisibility, isDeterministic

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

AbstractMinMaxAggregationFunction

protected AbstractMinMaxAggregationFunction(String name,
                                            boolean min)

Method Detail

specialize

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

Specified by:

specialize in class SqlAggregationFunction

generateAggregation

protected BuiltInAggregationFunctionImplementation generateAggregation(Type type,
                                                                       MethodHandle compareMethodHandle)

overrideIntermediateType

protected Type overrideIntermediateType(Type inputType,
                                        Type defaultIntermediateType)

input

public static void input(MethodHandle methodHandle,
                         NullableDoubleState state,
                         double value)

input

public static void input(MethodHandle methodHandle,
                         NullableLongState state,
                         long value)

input

public static void input(MethodHandle methodHandle,
                         NullableBooleanState state,
                         boolean value)

minInput

public static void minInput(Type type,
                            BlockPositionState state,
                            Block block,
                            int position)

maxInput

public static void maxInput(Type type,
                            BlockPositionState state,
                            Block block,
                            int position)

combine

public static void combine(MethodHandle methodHandle,
                           NullableLongState state,
                           NullableLongState otherState)

combine

public static void combine(MethodHandle methodHandle,
                           NullableDoubleState state,
                           NullableDoubleState otherState)

combine

public static void combine(MethodHandle methodHandle,
                           NullableBooleanState state,
                           NullableBooleanState otherState)

minCombine

public static void minCombine(Type type,
                              BlockPositionState state,
                              BlockPositionState otherState)

maxCombine

public static void maxCombine(Type type,
                              BlockPositionState state,
                              BlockPositionState otherState)