Record Class Option.None<Value>

java.lang.Object
java.lang.Record
codes.domix.fun.Option.None<Value>
Type Parameters:
Value - The type of the value that would be held by an Option, if present.
All Implemented Interfaces:
Option<Value>
Enclosing interface:
Option<Value>
public static record Option.None<Value>() extends Record implements Option<Value>
Represents a variant of the Option type that signifies the absence of a value.

This record is used to indicate and handle cases where an operation does not produce a meaningful or valid result. It serves as an alternative to using null.

  • Constructor Details

    • None

      public None()
      Creates an instance of a None record class.

  • Method Details

    • toString

      public final String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal.
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.