Package org.eclipse.net4j.util

Klasse ObjectUtil

java.lang.Object
org.eclipse.net4j.util.ObjectUtil
public final class ObjectUtil extends Object
Various static helper methods.
Autor:
Eike Stepper

  • Methodendetails

    • never

      public static boolean never()
      Seit:
      3.6

    • equals

      public static boolean equals(Object o1, Object o2)

    • hashCode

      public static int hashCode(Object o)

    • hashCode

      public static int hashCode(int... values)
      A collision-free hash code for small sets (<=4) of small, positive integers (<=128)
      Seit:
      3.2

    • hashCode

      public static int hashCode(long num)

    • appendtoArray

      public static <T> T[] appendtoArray(T[] array, T... elements)

    • isEmpty

      public static <T> boolean isEmpty(T[] array)
      Seit:
      3.1

    • isEmpty

      public static <T extends Map<?, ?>> boolean isEmpty(Map<?,?> map)
      Seit:
      3.1

    • isEmpty

      public static <T extends Collection<?>> boolean isEmpty(Collection<?> collection)
      Seit:
      3.1

    • isEmpty

      public static boolean isEmpty(String string)
      Seit:
      3.1

    • size

      public static <T> int size(T[] array)
      Seit:
      3.26

    • size

      public static <T extends Map<?, ?>> int size(Map<?,?> map)
      Seit:
      3.26

    • size

      public static <T extends Collection<?>> int size(Collection<?> collection)
      Seit:
      3.26

    • size

      public static int size(String string)
      Seit:
      3.26

    • close

      public static Exception close(Object object)
      Seit:
      3.3

    • notNull

      public static <T> T notNull(T object)
      Seit:
      3.3

    • requireNonNullElse

      public static <T> T requireNonNullElse(T obj, T defaultObj)
      Seit:
      3.28

    • requireNonNullElseGet

      public static <T> T requireNonNullElseGet(T obj, Supplier<? extends T> supplier)
      Seit:
      3.28

    • tryCast

      public static <T> T tryCast(Object object, Class<T> type)
      Attempts to cast an object as an instance of the given type.
      Parameter:
      object - an object to cast to some type
      type - the type to cast the object to
      Gibt zurück:
      the object or null if it is not of the required type
      Seit:
      3.4

    • forEachSafe

      public static <T> void forEachSafe(Iterable<T> iterable, Consumer<T> consumer)
      Seit:
      3.13

    • forEachSafe

      public static <T> void forEachSafe(T[] array, Consumer<T> consumer)
      Seit:
      3.13