Package org.eclipse.collections.api.block.function

Interface Function2<T1,T2,R>

All Superinterfaces:

BiFunction<T1,T2,R>, Serializable

All Known Implementing Classes:

AddFunction.AddCollectionFunction, AddFunction.AddDoubleFunction, AddFunction.AddFloatFunction, AddFunction.AddIntegerFunction, AddFunction.AddLongFunction, AddFunction.AddStringFunction, CheckedFunction2, Functions2.FunctionAdapter, Functions2.IntegerAddition, Functions2.MaxByFunction2, Functions2.MaxFunction2, Functions2.MinByFunction2, Functions2.MinFunction2, Functions2.ThrowingFunction2Adapter, MaxFunction.MaxDoubleFunction, MaxFunction.MaxIntegerFunction, MaxFunction.MaxLongFunction, MaxSizeFunction.MaxSizeCollectionFunction, MaxSizeFunction.MaxSizeMapFunction, MaxSizeFunction.MaxSizeStringFunction, MinFunction.MinDoubleFunction, MinFunction.MinIntegerFunction, MinFunction.MinLongFunction, MinSizeFunction.MinSizeCollectionFunction, MinSizeFunction.MinSizeMapFunction, MinSizeFunction.MinSizeStringFunction, MultiplyFunction.MultiplyDoubleFunction, MultiplyFunction.MultiplyIntegerFunction, MultiplyFunction.MultiplyLongFunction, SubtractFunction.SubtractDoubleFunction, SubtractFunction.SubtractIntegerFunction, SubtractFunction.SubtractLongFunction

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface Function2<T1,T2,R>
extends BiFunction<T1,T2,R>, Serializable

Function2 is a two argument lambda which takes two arguments and returns a result of a transformation. A Function2 is used by RichIterable.injectInto() and RichIterable.collectWith() methods. See documentation of these methods for more details.

Since:

1.0

See Also:

• RichIterable.injectInto(IV, org.eclipse.collections.api.block.function.Function2<? super IV, ? super T, ? extends IV>)
• RichIterable.collectWith(org.eclipse.collections.api.block.function.Function2<? super T, ? super P, ? extends V>, P)

Method Summary

Modifier and Type	Method	Description
default R	apply(T1 argument1, T2 argument2)
R	value(T1 argument1, T2 argument2)

Methods inherited from interface java.util.function.BiFunction

andThen

Method Details

value

R value(T1 argument1,
 T2 argument2)

apply

default R apply(T1 argument1,
 T2 argument2)

Specified by:

apply in interface BiFunction<T1,T2,R>