SessionPersistedObjectAnalyzer (Tapestry API - 5.7.2)乐学网一站式学习平台

All Known Implementing Classes:

DefaultSessionPersistedObjectAnalyzer, OptimizedSessionPersistedObjectAnalyzer
```
@UsesMappedConfiguration(key=java.lang.Class.class,
                         value=SessionPersistedObjectAnalyzer.class)
public interface SessionPersistedObjectAnalyzer<T>
```
Analyzes a session-persisted object, specifically to see if it is dirty or not. This service is provided to support applications which store mutable session attributes where the session is replicated to a slower medium (e.g. RDMBS, Cluster, etc) this can help alleviate excessive writes to the session store while ensuring changes are propagated. The service implementation uses a mapped configuration to form a strategy based on object type. The service may be injected using the Primary marker annotation.

Since:

5.1.0.0

See Also:

ImmutableSessionPersistedObject, OptimizedSessionPersistedObject

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`checkAndResetDirtyState(T sessionPersistedObject)`	Atomically check and reset the dirty state of the session persisted object.

- Method Detail
  - checkAndResetDirtyState
```
boolean checkAndResetDirtyState(T sessionPersistedObject)
```
    Atomically check and reset the dirty state of the session persisted object. The implementer should take consideration for the fact that session attributes are accessed concurrently. A naive check/set algorithm may allow changes to go un-noticed.
    
    Parameters:
    
    sessionPersistedObject - the session attribute (never null)
    
    Returns:
    
    true if the object needs to be re-stored into the session
    
    Since:
    
    5.3