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