Class TypedCollection

  • @Deprecated(since="2021-04-30")
    public class TypedCollection
    extends Object
    Commons Collections 3 is in maintenance mode. Commons Collections 4 should be used instead.
    Decorates a Collection to validate that elements added are of a specific type.

    The validation of additions is performed via an instanceof test against a specified Class. If an object cannot be added to the collection, an IllegalArgumentException is thrown.

    Commons Collections 3.0
    • Method Detail

      • decorate

        public static Collection decorate​(Collection coll,
                                          Class type)
        Factory method to create a typed collection.

        If there are any elements already in the collection being decorated, they are validated.

        coll - the collection to decorate, must not be null
        type - the type to allow into the collection, must not be null
        a new typed collection
        IllegalArgumentException - if collection or type is null
        IllegalArgumentException - if the collection contains invalid elements