Cardinality (enum)

API

Cardinality.java

enum Cardinality {
  ZERO     (1)
  ONE     (2)
  MULTIPLE     (3)
  boolean isZero()
  boolean isOne()
  boolean isMultiple()
}

1	ZERO The container is empty.
2	ONE The container has exactly one element.
3	MULTIPLE The container has at least two elements.

The container is empty.

The container has exactly one element.

The container has at least two elements.