Package com.android.utils

Class Pair<S,​T>

java.lang.Object
com.android.utils.Pair<S,​T>
Type Parameters:
S - The type of the first value
T - The type of the second value
public final class Pair<S,​T>
extends java.lang.Object
A Pair class is simply a 2-tuple for use in this package. We might want to think about adding something like this to a more central utility place, or replace it by a common tuple class if one exists, or even rewrite the layout classes using this Pair by a more dedicated data structure (so we don't have to pass around generic signatures as is currently done, though at least the construction is helped a bit by the of(S, T) factory method.

  • Method Summary

    Modifier and Type Method Description
    boolean equals​(java.lang.Object obj)  
    S getFirst()
    Return the first item in the pair
    T getSecond()
    Return the second item in the pair
    int hashCode()  
    static <S,​ T> Pair<S,​T> of​(S first, T second)
    Constructs a new pair of the given two objects, inferring generic types.
    java.lang.String toString()  

    Methods inherited from class java.lang.Object

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

  • Method Details

    • getFirst

      public S getFirst()
      Return the first item in the pair
      Returns:
      the first item in the pair

    • getSecond

      public T getSecond()
      Return the second item in the pair
      Returns:
      the second item in the pair

    • of

      public static <S,​ T> Pair<S,​T> of​(S first, T second)
      Constructs a new pair of the given two objects, inferring generic types.
      Type Parameters:
      S - the type of the first item
      T - the type of the second item
      Parameters:
      first - the first item to store in the pair
      second - the second item to store in the pair
      Returns:
      a new pair wrapping the two items

    • toString

      public java.lang.String toString()
      Overrides:
      toString in class java.lang.Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class java.lang.Object

    • equals

      public boolean equals​(java.lang.Object obj)
      Overrides:
      equals in class java.lang.Object