public interface SessionData
Unlike a cache, this session data is not subject to purging. For this same reason, session data should also not be abused as a cache (i.e. for storing values that can be re-calculated) to avoid memory exhaustion.
Note: Actual implementations must be thread-safe.
RepositorySystemSession.getData()| Modifier and Type | Method and Description |
|---|---|
Object |
get(Object key)
Gets the session data associated with the specified key.
|
void |
set(Object key,
Object value)
Associates the specified session data with the given key.
|
boolean |
set(Object key,
Object oldValue,
Object newValue)
Associates the specified session data with the given key if the key is currently mapped to the given value.
|
void set(Object key, Object value)
key - The key under which to store the session data, must not be null.value - The data to associate with the key, may be null to remove the mapping.boolean set(Object key, Object oldValue, Object newValue)
key - The key under which to store the session data, must not be null.oldValue - The expected data currently associated with the key, may be null.newValue - The data to associate with the key, may be null to remove the mapping.true if the key mapping was successfully updated from the old value to the new value,
false if the current key mapping didn't match the expected value and was not updated.Copyright © 2010–2018 The Apache Software Foundation. All rights reserved.