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

Interface Function<T,V>

All Superinterfaces:

Function<T,V>, Serializable

All Known Implementing Classes:

AbstractImmutableEntry.KeyFunction, AbstractImmutableEntry.PairFunction, AbstractImmutableEntry.ValueFunction, AbstractMultimap.KeyValuePairFunction, ArrayProcedureFJTaskRunner.ProcedureExtractor, BatchIterableProcedureFJTaskRunner.ProcedureExtractor, CaseFunction, CheckedFunction, DoubleFunctionImpl, FJBatchIterableProcedureRunner.ProcedureExtractor, FJListObjectIntProcedureRunner.ProcedureExtractor, FJListProcedureRunner.ProcedureExtractor, Functions.BindFunction2, Functions.ClassForNameFunction, Functions.ClassFunction, Functions.DefaultFunction, Functions.DoublePassThruFunction, Functions.FalseFunction, Functions.FirstNotEmptyCollectionFunction, Functions.FirstNotEmptyStringFunction, Functions.FirstNotNullFunction, Functions.FirstOfPairFunction, Functions.FixedValueFunction, Functions.FunctionChain, Functions.IntegerPassThruFunction, Functions.LongPassThruFunction, Functions.MapKeyFunction, Functions.MapValueFunction, Functions.MathSinFunction, Functions.NullSafeFunction, Functions.PassThruFunction, Functions.SecondOfPairFunction, Functions.SizeFunction, Functions.SquaredIntegerFunction, Functions.StringToIntegerFunction, Functions.StringTrimFunction, Functions.SwappedPairFunction, Functions.SynchronizedFunction, Functions.ThrowingFunctionAdapter, Functions.ToStringFunction, Functions.TrueFunction, IfFunction, IntegerFunctionImpl, LongFunctionImpl, MultimapFunctions.MultimapGetFunction, ObjectIntProcedureFJTaskRunner.ObjectIntProcedureExtractor, ProcedureFJTaskRunner.ProcedureExtractor, StringFunctions.AppendFunction, StringFunctions.FirstLetterFunction, StringFunctions.LengthFunction, StringFunctions.PrependFunction, StringFunctions.SubStringFunction, StringFunctions.ToIntegerFunction, StringFunctions.ToLowerCaseFunction, StringFunctions.ToUpperCaseFunction, StringFunctions.TrimFunction

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 Function<T,V>
extends Function<T,V>, Serializable

Function is a one-argument lambda which performs a transformation on the object of type T passed to the valueOf() method. This transformation can return the value of calling a getter, or perform some more elaborate logic to calculate a value, of type V.

Method Summary

Modifier and Type	Method	Description
default V	apply(T each)
V	valueOf(T each)

Methods inherited from interface java.util.function.Function

andThen, compose

Method Details

valueOf

V valueOf(T each)

apply

default V apply(T each)

Specified by:

apply in interface Function<T,V>