java.lang.Object | ||
↳ | org.springframework.orm.jpa.EntityManagerFactoryAccessor | |
↳ | org.springframework.orm.jpa.support.OpenEntityManagerInViewInterceptor |
Spring web request interceptor that binds a JPA EntityManager to the thread for the entire processing of the request. Intended for the "Open EntityManager in View" pattern, i.e. to allow for lazy loading in web views despite the original transactions already being completed.
This interceptor makes JPA EntityManagers available via the current thread,
which will be autodetected by transaction managers. It is suitable for service
layer transactions via JpaTransactionManager
or JtaTransactionManager
as well
as for non-transactional read-only execution.
In contrast to OpenEntityManagerInViewFilter
, this interceptor
is set up in a Spring application context and can thus take advantage of
bean wiring. It inherits common JPA configuration properties from
JpaAccessor
, to be configured in a
bean definition.
Constants | |||||||||||
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String | PARTICIPATE_SUFFIX | Suffix that gets appended to the EntityManagerFactory toString representation for the "participate in existing entity manager handling" request attribute. |
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Inherited Fields | |||||||||||
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From class
org.springframework.orm.jpa.EntityManagerFactoryAccessor
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Public Constructors | |||||||||||
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Public Methods | |||||||||||
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Callback after completion of request processing, that is, after rendering
the view.
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Intercept the execution of a request handler after its successful
invocation, right before view rendering (if any).
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Intercept the execution of a request handler before its invocation.
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Protected Methods | |||||||||||
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Return the name of the request attribute that identifies that a request is
already filtered.
|
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Inherited Methods | |||||||||||
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From class
org.springframework.orm.jpa.EntityManagerFactoryAccessor
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From class
java.lang.Object
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From interface
org.springframework.web.context.request.WebRequestInterceptor
|
Suffix that gets appended to the EntityManagerFactory toString representation for the "participate in existing entity manager handling" request attribute.
Callback after completion of request processing, that is, after rendering the view. Will be called on any outcome of handler execution, thus allows for proper resource cleanup.
Note: Will only be called if this interceptor's preHandle
method has successfully completed!
request | the current web request |
---|---|
ex | exception thrown on handler execution, if any |
DataAccessException |
---|
Intercept the execution of a request handler after its successful invocation, right before view rendering (if any).
Allows for modifying context resources after successful handler execution (for example, flushing a Hibernate Session).
request | the current web request |
---|---|
model | the map of model objects that will be exposed to the view
(may be null ). Can be used to analyze the exposed model
and/or to add further model attributes, if desired. |
Intercept the execution of a request handler before its invocation.
Allows for preparing context resources (such as a Hibernate Session) and expose them as request attributes or as thread-local objects.
request | the current web request |
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DataAccessException |
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Return the name of the request attribute that identifies that a request is already filtered. Default implementation takes the toString representation of the EntityManagerFactory instance and appends ".FILTERED".