org.eclipse.rdf4j.common.lang

## Class ObjectUtil

- java.lang.Object
- - org.eclipse.rdf4j.common.lang.ObjectUtil

-     public class ObjectUtil
      extends Object

  Generic utility methods related to objects.
  Author:
    Arjohn Kampman

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `ObjectUtil()`

  - ### Method Summary

    All Methods Static Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static boolean` | `nullEquals(Object o1, Object o2)` Compares two objects or null references.
    `static int` | `nullHashCode(Object o)` Returns the hash code of the supplied object, or `0` if a null reference is supplied.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### ObjectUtil

          public ObjectUtil()

  - ### Method Detail

    - #### nullEquals

          public static boolean nullEquals(Object o1,
                                           Object o2)

      Compares two objects or null references.
      Parameters:
        `o1` - The first object.
        `o2` - The second object
      Returns:
        `true` if both objects are `null`, if the object references are identical, or if the objects are equal according to the `Object.equals(java.lang.Object)` method of the first object; `false` in all other situations.

    - #### nullHashCode

          public static int nullHashCode(Object o)

      Returns the hash code of the supplied object, or `0` if a null reference is supplied.
      Parameters:
        `o` - An object or null reference.
      Returns:
        The object's hash code, or `0` if the parameter is `null`.

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