org.apache.commons.collections.map
Class TypedMap
java.lang.Objectorg.apache.commons.collections.map.TypedMap
public class TypedMap
extends java.lang.Object
Decorates another
Map 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.
Note that TypedMap is not synchronized and is not thread-safe.
If you wish to use this map from multiple threads concurrently, you must use
appropriate synchronization. The simplest approach is to wrap this map
using
java.util.Collections.synchronizedMap(Map). This class may throw
exceptions when accessed by concurrent threads without synchronization.
The returned implementation is Serializable from Commons Collections 3.1.
$Revision: 348007 $ $Date: 2005-11-21 22:52:57 +0000 (Mon, 21 Nov 2005) $- Stephen Colebourne
- Matthew Hawthorne
static Map | decorate(Map map, Class keyType, Class valueType)- Factory method to create a typed map.
|
TypedMap
protected TypedMap()
Restrictive constructor.
decorate
public static Map decorate(Map map,
Class keyType,
Class valueType) Factory method to create a typed map.
If there are any elements already in the map being decorated, they
are validated.
map - the map to decorate, must not be nullkeyType - the type to allow as keys, must not be nullvalueType - the type to allow as values, must not be null
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