public class TypedMap extends java.lang.Object
Mapto validate that elements added are of a specific type.
The validation of additions is performed via an instanceof test against
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
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.
|Modifier and Type||Method and Description|
Factory method to create a typed map.
public static java.util.Map decorate(java.util.Map map, java.lang.Class keyType, java.lang.Class valueType)
If there are any elements already in the map being decorated, they are validated.
map- the map to decorate, must not be null
keyType- the type to allow as keys, must not be null
valueType- the type to allow as values, must not be null
java.lang.IllegalArgumentException- if list or type is null
java.lang.IllegalArgumentException- if the list contains invalid elements
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