ObjectKey (hybris Commerce Suite 2011)

Type Parameters:

T - The type of the cached object (which is the generic type of the ObjectCreator too)

All Known Implementing Classes:

Cache2Test.TestObjectKey
```
public interface ObjectKey<T>
```
The ObjectKey is responsible for the lookup of the cached object.

An ObjectKey is characterized by an unique signature and an expiration state. The signature must always be unique within on caching system. (Note: each caching system is managed by a separate ObjectCacheManager).
The expiration state indicates whether the cached objectvalue is valid anymore. can change from valied to expired and vice versa.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`getExpired()`	Indicates whether the cached object is still valid.
`ObjectCreator<T>`	`getObjectCreator()`	The `ObjectCreator` which can create an Object for this key.
`java.lang.Object`	`getSignature()`	A signature which must be unique within one cache system.

- Method Detail
  - getSignature
```
java.lang.Object getSignature()
```
    A signature which must be unique within one cache system. Think analogical of a key within a map.
    
    Returns:
    
    Signature object
  - getExpired
```
boolean getExpired()
```
    Indicates whether the cached object is still valid.
    
    Returns:
    
    true when the object is still valid; false otherwise
  - getObjectCreator
```
ObjectCreator<T> getObjectCreator()
```
    The ObjectCreator which can create an Object for this key.
    
    Returns:
    
    ObjectCreator