Package net.hydromatic.morel.eval

Class Codes.SetRowSink

java.lang.Object

net.hydromatic.morel.eval.Codes.BaseRowSink

net.hydromatic.morel.eval.Codes.SetRowSink

All Implemented Interfaces:

Codes.RowSink, Describable

Direct Known Subclasses:

Codes.ExceptAllRowSink, Codes.ExceptDistinctRowSink, Codes.IntersectAllRowSink, Codes.IntersectDistinctRowSink, Codes.UnionRowSink

Enclosing class:

Codes

abstract static class Codes.SetRowSink
extends Codes.BaseRowSink

Implementation of Codes.RowSink for an except, intersect, or union step.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final com.google.common.collect.ImmutableList<Code>	codes
(package private) final boolean	distinct
(package private) final Map<Object,int[]>	map
(package private) final com.google.common.collect.ImmutableList<String>	names
(package private) final Op	op
(package private) final Object[]	values
private static final int[]	ZERO

Fields inherited from class net.hydromatic.morel.eval.Codes.BaseRowSink

rowSink

Constructor Summary

Constructors

Constructor	Description
SetRowSink(Op op, boolean distinct, com.google.common.collect.ImmutableList<Code> codes, com.google.common.collect.ImmutableList<String> names, Codes.RowSink rowSink)

Method Summary

Modifier and Type	Method	Description
(package private) boolean	add(EvalEnv env)	Adds the current element to the collection, and returns whether it was added.
(package private) void	compute(EvalEnv env, BiFunction<Object,int[],int[]> fn)	Does something to the count of the current element in the collection.
(package private) void	computeIfAbsent(EvalEnv env, Function<Object,int[]> fn)	Does something to the count of the current element in the collection.
(package private) void	computeIfPresent(EvalEnv env, BiFunction<Object,int[],int[]> fn)	Does something to the count of the current element in the collection.
(package private) void	dec(EvalEnv env)	Decrements the count of the current element in the collection, if it is present.
Describer	describe(Describer describer)
(package private) void	inc(EvalEnv env)	Increments the count of the current element in the collection.
(package private) void	remove(EvalEnv env)	Removes the current element from the collection.

Methods inherited from class net.hydromatic.morel.eval.Codes.BaseRowSink

accept, result, start

Methods inherited from class java.lang.Object

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

Field Details

ZERO

private static final int[] ZERO

op

final Op op

distinct

final boolean distinct

codes

final com.google.common.collect.ImmutableList<Code> codes

names

final com.google.common.collect.ImmutableList<String> names

map

final Map<Object,int[]> map

values

final Object[] values

Constructor Details

SetRowSink

SetRowSink(Op op,
 boolean distinct,
 com.google.common.collect.ImmutableList<Code> codes,
 com.google.common.collect.ImmutableList<String> names,
 Codes.RowSink rowSink)

Method Details

describe

public Describer describe(Describer describer)

add

boolean add(EvalEnv env)

Adds the current element to the collection, and returns whether it was added.

remove

void remove(EvalEnv env)

Removes the current element from the collection.

inc

void inc(EvalEnv env)

Increments the count of the current element in the collection.

dec

void dec(EvalEnv env)

Decrements the count of the current element in the collection, if it is present.

compute

void compute(EvalEnv env,
 BiFunction<Object,int[],int[]> fn)

Does something to the count of the current element in the collection.

computeIfPresent

void computeIfPresent(EvalEnv env,
 BiFunction<Object,int[],int[]> fn)

Does something to the count of the current element in the collection.

computeIfAbsent

void computeIfAbsent(EvalEnv env,
 Function<Object,int[]> fn)

Does something to the count of the current element in the collection.