Uses of Interface
org.apache.calcite.linq4j.function.Function0

Packages that use Function0

Package	Description
org.apache.calcite.linq4j	Language-integrated query for Java (linq4j) main package.
org.apache.calcite.linq4j.function	Contains definitions of functions and predicates.

Uses of Function0 in org.apache.calcite.linq4j

Methods in org.apache.calcite.linq4j with parameters of type Function0

Modifier and Type	Method and Description
private static <TSource,TKey,TAccumulate,TResult> Enumerable<TResult>	EnumerableDefaults.groupBy_(Map<TKey,TAccumulate> map, Enumerable<TSource> enumerable, Function1<TSource,TKey> keySelector, Function0<TAccumulate> accumulatorInitializer, Function2<TAccumulate,TSource,TAccumulate> accumulatorAdder, Function2<TKey,TAccumulate,TResult> resultSelector)
static <TSource,TKey,TAccumulate,TResult> Enumerable<TResult>	EnumerableDefaults.groupBy(Enumerable<TSource> enumerable, Function1<TSource,TKey> keySelector, Function0<TAccumulate> accumulatorInitializer, Function2<TAccumulate,TSource,TAccumulate> accumulatorAdder, Function2<TKey,TAccumulate,TResult> resultSelector) Groups the elements of a sequence according to a specified key selector function, initializing an accumulator for each group and adding to it each time an element with the same key is seen.
static <TSource,TKey,TAccumulate,TResult> Enumerable<TResult>	EnumerableDefaults.groupBy(Enumerable<TSource> enumerable, Function1<TSource,TKey> keySelector, Function0<TAccumulate> accumulatorInitializer, Function2<TAccumulate,TSource,TAccumulate> accumulatorAdder, Function2<TKey,TAccumulate,TResult> resultSelector, EqualityComparer<TKey> comparer) Groups the elements of a sequence according to a specified key selector function, initializing an accumulator for each group and adding to it each time an element with the same key is seen.
<TKey,TAccumulate,TResult> Enumerable<TResult>	ExtendedEnumerable.groupBy(Function1<TSource,TKey> keySelector, Function0<TAccumulate> accumulatorInitializer, Function2<TAccumulate,TSource,TAccumulate> accumulatorAdder, Function2<TKey,TAccumulate,TResult> resultSelector) Groups the elements of a sequence according to a specified key selector function, initializing an accumulator for each group and adding to it each time an element with the same key is seen.
<TKey,TAccumulate,TResult> Enumerable<TResult>	ExtendedEnumerable.groupBy(Function1<TSource,TKey> keySelector, Function0<TAccumulate> accumulatorInitializer, Function2<TAccumulate,TSource,TAccumulate> accumulatorAdder, Function2<TKey,TAccumulate,TResult> resultSelector, EqualityComparer<TKey> comparer) Groups the elements of a sequence according to a specified key selector function, initializing an accumulator for each group and adding to it each time an element with the same key is seen.
<TKey,TAccumulate,TResult> Enumerable<TResult>	DefaultEnumerable.groupBy(Function1<T,TKey> keySelector, Function0<TAccumulate> accumulatorInitializer, Function2<TAccumulate,T,TAccumulate> accumulatorAdder, Function2<TKey,TAccumulate,TResult> resultSelector)
<TKey,TAccumulate,TResult> Enumerable<TResult>	DefaultEnumerable.groupBy(Function1<T,TKey> keySelector, Function0<TAccumulate> accumulatorInitializer, Function2<TAccumulate,T,TAccumulate> accumulatorAdder, Function2<TKey,TAccumulate,TResult> resultSelector, EqualityComparer<TKey> comparer)
private static <TSource,TKey,TAccumulate,TResult> Enumerable<TResult>	EnumerableDefaults.groupByMultiple_(Map<TKey,TAccumulate> map, Enumerable<TSource> enumerable, List<Function1<TSource,TKey>> keySelectors, Function0<TAccumulate> accumulatorInitializer, Function2<TAccumulate,TSource,TAccumulate> accumulatorAdder, Function2<TKey,TAccumulate,TResult> resultSelector)
static <TSource,TKey,TAccumulate,TResult> Enumerable<TResult>	EnumerableDefaults.groupByMultiple(Enumerable<TSource> enumerable, List<Function1<TSource,TKey>> keySelectors, Function0<TAccumulate> accumulatorInitializer, Function2<TAccumulate,TSource,TAccumulate> accumulatorAdder, Function2<TKey,TAccumulate,TResult> resultSelector) Groups the elements of a sequence according to a list of specified key selector functions, initializing an accumulator for each group and adding to it each time an element with the same key is seen.

Constructors in org.apache.calcite.linq4j with parameters of type Function0

Constructor and Description
WrapMap(Function0<Map<EnumerableDefaults.Wrapped<K>,V>> mapProvider, EqualityComparer<K> comparer)

Uses of Function0 in org.apache.calcite.linq4j.function

Classes in org.apache.calcite.linq4j.function that implement Function0

Modifier and Type	Class and Description
private static class	Functions.Ignore<R,T0,T1> Ignore.

Methods in org.apache.calcite.linq4j.function that return Function0

Modifier and Type	Method and Description
static <R> Function0<R>	Functions.ignore0() Returns a function of arity 0 that does nothing.