Interface BinaryOperator<T>
- Type Parameters:
T
- the type of the operands and result of the operator
- All Superinterfaces:
BiFunction<T,
T, T>
- Functional Interface:
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
Represents an operation upon two operands of the same type, producing a result
of the same type as the operands. This is a specialization of
BiFunction
for the case where the operands and the result are all of
the same type.
This is a functional interface
whose functional method is BiFunction.apply(Object, Object)
.
- Since:
- 1.8
- See Also:
-
Method Summary
Modifier and TypeMethodDescriptionstatic <T> BinaryOperator
<T> maxBy
(Comparator<? super T> comparator) Returns aBinaryOperator
which returns the greater of two elements according to the specifiedComparator
.static <T> BinaryOperator
<T> minBy
(Comparator<? super T> comparator) Returns aBinaryOperator
which returns the lesser of two elements according to the specifiedComparator
.Methods declared in interface java.util.function.BiFunction
andThen, apply
-
Method Details
-
minBy
Returns aBinaryOperator
which returns the lesser of two elements according to the specifiedComparator
.- Type Parameters:
T
- the type of the input arguments of the comparator- Parameters:
comparator
- aComparator
for comparing the two values- Returns:
- a
BinaryOperator
which returns the lesser of its operands, according to the suppliedComparator
- Throws:
NullPointerException
- if the argument is null
-
maxBy
Returns aBinaryOperator
which returns the greater of two elements according to the specifiedComparator
.- Type Parameters:
T
- the type of the input arguments of the comparator- Parameters:
comparator
- aComparator
for comparing the two values- Returns:
- a
BinaryOperator
which returns the greater of its operands, according to the suppliedComparator
- Throws:
NullPointerException
- if the argument is null
-