Methods for handling collections

• CollectionUtils.union(list1,list2): Returns the union of two lists

Example:

def list1 = ["A", "B", "C", "D", "E", "F"]
def list2 = ["B", "D", "F", "G", "H", "K"]
def re = CollectionUtils.union(list1, list2)
log.info(re) // [A, B, C, D, E, F, G, H, K]

• CollectionUtils.intersection(list1,list2): Returns the intersection of two lists

Example:

def list1 = ["A", "B", "C", "D", "E", "F"]
def list2 = ["B", "D", "F", "G", "H", "K"]
def re = CollectionUtils.intersection(list1, list2)
log.info(re) //[B, D, F]

• CollectionUtils.disjunction(list1,list2): Returns the complement of the intersection of two lists (disjunction)

Example:

def list1 = ["A", "B", "C", "D", "E", "F"]
def list2 = ["B", "D", "F", "G", "H", "K"]
def re = CollectionUtils.disjunction(list1, list2)
log.info(re) //[A, C, E, G, H, K]

• CollectionUtils.subtract(list1,list2): Returns the difference between two lists (subtraction)

Example:

def list1 = ["A", "B", "C", "D", "E", "F"]
def list2 = ["B", "D", "F", "G", "H", "K"]
def re = CollectionUtils.subtract(list1, list2)
log.info(re) //[A, C, E]

• CollectionUtils.isEqualCollection(list1,list2): Determines whether two collections are equal

Example:

def list1 = ["A", "B", "C", "D", "E", "F"]
def list2 = ["A", "F", "B", "C", "D", "E"]
def re = CollectionUtils.isEqualCollection(list1, list2)
log.info(re) //true

• CollectionUtils.isSubCollection(list1,list2): Determines whether list1 is a subset of list2

Example:

def list1 = ["A", "F"]
def list2 = ["A", "B", "C", "D", "E", "F"]
def re = CollectionUtils.isSubCollection(list1, list2)
log.info(re) //true

• CollectionUtils.cardinality(str,list1): Returns the number of occurrences of an element

Example:

def list1 = ["A", "A", "A", "D", "E", "F"]
String str = "A"
def re = CollectionUtils.cardinality(str, list1)
log.info(re) //3