Package org.eclipse.nebula.paperclips.core.internal.util

Class Util

java.lang.Object
org.eclipse.nebula.paperclips.core.internal.util.Util
public class Util
extends java.lang.Object
General use convenience methods: null checking, equality

  • Constructor Summary

    Constructors 
    Constructor Description
    Util()  

  • Method Summary

    Modifier and Type Method Description
    static boolean equal​(double left, double right)
    Returns whether the arguments are equal.
    static boolean equal​(java.lang.Object left, java.lang.Object right)
    Returns whether the arguments are equal.
    static void noNulls​(java.lang.Object[] objs)
    Triggers a SWT.ERROR_NULL_ARGUMENT exception if the argument or any of its elements is null.
    static void noNulls​(java.util.List<?> list)
    Triggers a SWT.ERROR_NULL_ARGUMENT exception if the argument or any of its elements is null.
    static void notNull​(java.lang.Object obj)
    Triggers a SWT.ERROR_NULL_ARGUMENT exception if the argument is null.
    static void notNull​(java.lang.Object o1, java.lang.Object o2)
    Triggers a SWT.ERROR_NULL_ARGUMENT exception if any argument is null.
    static void notNull​(java.lang.Object o1, java.lang.Object o2, java.lang.Object o3)
    Triggers a SWT.ERROR_NULL_ARGUMENT exception if any argument is null.
    static boolean sameClass​(java.lang.Object left, java.lang.Object right)
    Returns whether the objects are of the same class.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Util

      public Util()

  • Method Details

    • sameClass

      public static boolean sameClass​(java.lang.Object left, java.lang.Object right)
      Returns whether the objects are of the same class.
      Parameters:
      left - object to test
      right - object to test
      Returns:
      whether the objects are of the same class.

    • equal

      public static boolean equal​(java.lang.Object left, java.lang.Object right)
      Returns whether the arguments are equal.
      Parameters:
      left - object to test
      right - object to test
      Returns:
      whether the arguments are equal.

    • equal

      public static boolean equal​(double left, double right)
      Returns whether the arguments are equal.
      Parameters:
      left - double value to test
      right - double value to test
      Returns:
      whether the arguments are equal.

    • noNulls

      public static void noNulls​(java.util.List<?> list)
      Triggers a SWT.ERROR_NULL_ARGUMENT exception if the argument or any of its elements is null.
      Parameters:
      list - a list to test for null elements.

    • noNulls

      public static void noNulls​(java.lang.Object[] objs)
      Triggers a SWT.ERROR_NULL_ARGUMENT exception if the argument or any of its elements is null.
      Parameters:
      objs - an array to test for null elements.

    • notNull

      public static void notNull​(java.lang.Object obj)
      Triggers a SWT.ERROR_NULL_ARGUMENT exception if the argument is null.
      Parameters:
      obj - the object to test for null.

    • notNull

      public static void notNull​(java.lang.Object o1, java.lang.Object o2)
      Triggers a SWT.ERROR_NULL_ARGUMENT exception if any argument is null.
      Parameters:
      o1 - an object to test for null.
      o2 - an object to test for null.

    • notNull

      public static void notNull​(java.lang.Object o1, java.lang.Object o2, java.lang.Object o3)
      Triggers a SWT.ERROR_NULL_ARGUMENT exception if any argument is null.
      Parameters:
      o1 - an object to test for null.
      o2 - an object to test for null.
      o3 - an object to test for null.