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Interface for an object that manages a single application state object. Represents the named
intersection of a StateObjectPersistenceManager
for
storing the state object between request cycles, and a
StateObjectFactory
to create the object in the first
place.
Method Summary | |
boolean |
exists()
Returns true if the application state object exists (i.e., a value has been stored). |
java.lang.Object |
get()
Gets or creates the application state object. |
void |
store(java.lang.Object stateObject)
Stores (if necessary) the object back into persistent storage. |
Method Detail |
public boolean exists()
public java.lang.Object get()
public void store(java.lang.Object stateObject)
stateObject
- the application state object previously obtained from get()
.
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