Interface LongUnaryOperator

All Superinterfaces:
java.util.function.Function<java.lang.Long,​java.lang.Long>, java.util.function.LongUnaryOperator, java.util.function.UnaryOperator<java.lang.Long>
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 LongUnaryOperator
extends java.util.function.UnaryOperator<java.lang.Long>, java.util.function.LongUnaryOperator
A type-specific UnaryOperator; provides methods operating both on objects and on primitives.
Since:
8.5.0
See Also:
UnaryOperator
  • Method Summary

    Modifier and Type Method Description
    long apply​(long x)
    Computes the operator on the given input.
    default java.lang.Long apply​(java.lang.Long x)
    Deprecated.
    Please use the corresponding type-specific method instead.
    default long applyAsLong​(long x)
    Deprecated.
    Please use apply(long).
    static LongUnaryOperator identity()
    Returns a UnaryOperator that always returns the input unmodified.
    static LongUnaryOperator negation()
    Returns a UnaryOperator that always returns the arithmetic negation of the input.

    Methods inherited from interface java.util.function.Function

    andThen, compose

    Methods inherited from interface java.util.function.LongUnaryOperator

    andThen, compose
  • Method Details

    • apply

      long apply​(long x)
      Computes the operator on the given input.
      Parameters:
      x - the input.
      Returns:
      the output of the operator on the given input.
    • identity

      static LongUnaryOperator identity()
      Returns a UnaryOperator that always returns the input unmodified.
      See Also:
      UnaryOperator.identity()
    • negation

      static LongUnaryOperator negation()
      Returns a UnaryOperator that always returns the arithmetic negation of the input.
      Implementation Notes:
      As with all negation, be wary of unexpected behavior near the minimum value of the data type. For example, -Integer.MIN_VALUE will result in Integer.MIN_VALUE (still negative), as the positive value of Integer.MIN_VALUE is too big for int (it would be 1 greater then Integer.MAX_VALUE).
    • applyAsLong

      @Deprecated default long applyAsLong​(long x)
      Deprecated.
      Please use apply(long).
      Specified by:
      applyAsLong in interface java.util.function.LongUnaryOperator
      Implementation Specification:
      This default implementation delegates to apply(long).
    • apply

      @Deprecated default java.lang.Long apply​(java.lang.Long x)
      Deprecated.
      Please use the corresponding type-specific method instead.
      Specified by:
      apply in interface java.util.function.Function<java.lang.Long,​java.lang.Long>