Package com.google.api.client.util

Class Objects

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

    • Constructor Detail

      • Objects

        private Objects()

    • Method Detail

      • equal

        public static boolean equal​(java.lang.Object a,
                            java.lang.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​(java.lang.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