Package it.unimi.di.prog2.h24.digraph

Record Class Arc<T>

java.lang.Object
java.lang.Record
it.unimi.di.prog2.h24.digraph.Arc<T>
Type Parameters:
T - the type of the graph nodes.
Record Components:
source - the arc source.
destination - the arc destination.
public record Arc<T>(T source, T destination) extends Record
An arc of a directed graph with nodes of type T.

This class is immutable, two arcs are equal if and only if their sources and destinations are respectively equal.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    private final T
    destination
    The field for the destination record component.
    private final T
    source
    The field for the source record component.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Arc(T source, T destination)
    Creates an arc.

  • Method Summary

    Modifier and Type
    Method
    Description
    T
    destination()
    Returns the value of the destination record component.
    final boolean
    equals(Object o)
    Indicates whether some other object is "equal to" this one.
    final int
    hashCode()
    Returns a hash code value for this object.
    T
    source()
    Returns the value of the source record component.
    String
    toString()
    Returns a string representation of this record class.

    Methods inherited from class java.lang.Object

    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

  • Field Details

    • source

      private final T source
      The field for the source record component.

    • destination

      private final T destination
      The field for the destination record component.

  • Constructor Details

    • Arc

      public Arc(T source, T destination)
      Creates an arc.
      Parameters:
      source - the arc source.
      destination - the arc destination.
      Throws:
      NullPointerException - if source or destination is null.

  • Method Details

    • toString

      public 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. All components in this record class are compared with Objects::equals(Object,Object).
      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.

    • source

      public T source()
      Returns the value of the source record component.
      Returns:
      the value of the source record component

    • destination

      public T destination()
      Returns the value of the destination record component.
      Returns:
      the value of the destination record component