Class Objects

java.lang.Object
com.google.api.client.util.Objects

public final class Objects extends Object
Helper functions that can operate on any Object.
Since:
1.14
  • Constructor Details

    • Objects

      private Objects()
  • Method Details

    • equal

      public static boolean equal(Object a, Object b)
      Determines whether two possibly-null objects are equal. Returns:
      • true if a and b are both null.
      • true if a and b are both non-null and they are equal according to Object.equals(Object).
      • false in all other situations.

      This assumes that any non-null objects passed to this function conform to the equals() contract.

    • toStringHelper

      public static Objects.ToStringHelper toStringHelper(Object self)
      Creates an instance of Objects.ToStringHelper.

      This is helpful for implementing Object.toString(). Specification by example:

         // Returns "ClassName{}"
         Objects.toStringHelper(this)
             .toString();
      
         // Returns "ClassName{x=1}"
         Objects.toStringHelper(this)
             .add("x", 1)
             .toString();
      
         // Returns "MyObject{x=1}"
         Objects.toStringHelper("MyObject")
             .add("x", 1)
             .toString();
      
         // Returns "ClassName{x=1, y=foo}"
         Objects.toStringHelper(this)
             .add("x", 1)
             .add("y", "foo")
             .toString();
      
         // Returns "ClassName{x=1}"
         Objects.toStringHelper(this)
             .omitNullValues()
             .add("x", 1)
             .add("y", null)
             .toString();
       
      Parameters:
      self - the object to generate the string for (typically this), used only for its class name