public class CollectionUtils
extends Object 

• Constructor Summary

  Constructors

  Constructor and Description
  CollectionUtils ()

• Method Summary

  All Methods

  Modifier and Type	Method and Description
  static <T> boolean	isNullOrEmpty (Collection<T> collection)
  static String	join (Collection<String> toJoin, String separator) Joins a collection of strings with the given separator into a single string.
  static <T> List<T>	mergeLists (List<T> list1, List<T> list2) Returns a new list containing the second list appended to the first list.

  • Methods inherited from class java.lang.Object

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

• Constructor Detail

  • CollectionUtils

    public CollectionUtils()

• Method Detail

  • isNullOrEmpty

    public static <T> boolean isNullOrEmpty(Collection<T> collection)

  • mergeLists

    public static <T> List<T> mergeLists(List<T> list1,
     List<T> list2)

    Returns a new list containing the second list appended to the first list.

  • join

    public static String join(Collection<String> toJoin,
     String separator)

    Joins a collection of strings with the given separator into a single string.

    Parameters:

    toJoin - Collection containing items to join.

    separator - String to join items with.

    Returns:

    Empty string if collection is null or empty. Otherwise joins all strings in the collection with the separator.