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java.lang.Objectorg.apache.commons.collections.bag.TypedBag
public class TypedBag
Decorates another Bag 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.
| Constructor Summary | |
|---|---|
protected |
TypedBag()
Restrictive constructor. |
| Method Summary | |
|---|---|
static Bag |
decorate(Bag bag,
java.lang.Class type)
Factory method to create a typed bag. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
protected TypedBag()
| Method Detail |
|---|
public static Bag decorate(Bag bag,
java.lang.Class type)
If there are any elements already in the bag being decorated, they are validated.
bag - the bag to decorate, must not be nulltype - the type to allow into the bag, must not be null
java.lang.IllegalArgumentException - if bag or type is null
java.lang.IllegalArgumentException - if the bag contains invalid elements
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