java.lang.Object
- org.springframework.web.filter.GenericFilterBean
- - org.springframework.web.filter.OncePerRequestFilter
  - - org.springframework.orm.jdo.support.OpenPersistenceManagerInViewFilter

所有已实现的接口:
Filter, Aware, BeanNameAware, DisposableBean, InitializingBean, EnvironmentAware, EnvironmentCapable, ServletContextAware
```
public class OpenPersistenceManagerInViewFilter
extends OncePerRequestFilter
```
Servlet Filter that binds a JDO PersistenceManager to the thread for the entire processing of the request. Intended for the "Open PersistenceManager in View" pattern, i.e. to allow for lazy loading in web views despite the original transactions already being completed.
This filter makes JDO PersistenceManagers available via the current thread, which will be autodetected by transaction managers. It is suitable for service layer transactions via JdoTransactionManager or JtaTransactionManager as well as for non-transactional read-only execution.
Looks up the PersistenceManagerFactory in Spring's root web application context. Supports a "persistenceManagerFactoryBeanName" filter init-param in web.xml; the default bean name is "persistenceManagerFactory".
从以下版本开始:
1.1
作者:
Juergen Hoeller
另请参阅:
OpenPersistenceManagerInViewInterceptor, JdoTransactionManager, PersistenceManagerFactoryUtils.getPersistenceManager(javax.jdo.PersistenceManagerFactory, boolean), TransactionSynchronizationManager

字段概要
字段
修饰符和类型字段说明
static String DEFAULT_PERSISTENCE_MANAGER_FACTORY_BEAN_NAME
- 从类继承的字段 org.springframework.web.filter.OncePerRequestFilter
  ALREADY_FILTERED_SUFFIX
- 从类继承的字段 org.springframework.web.filter.GenericFilterBean
  logger

构造器概要
构造器
构造器说明
OpenPersistenceManagerInViewFilter()

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`protected void`	`doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)`	Same contract as for `doFilter`, but guaranteed to be just invoked once per request within a single request thread.
`protected String`	`getPersistenceManagerFactoryBeanName()`	Return the bean name of the PersistenceManagerFactory to fetch from Spring's root application context.
`protected javax.jdo.PersistenceManagerFactory`	`lookupPersistenceManagerFactory()`	Look up the PersistenceManagerFactory that this filter should use.
`protected javax.jdo.PersistenceManagerFactory`	`lookupPersistenceManagerFactory(HttpServletRequest request)`	Look up the PersistenceManagerFactory that this filter should use, taking the current HTTP request as argument.
`void`	`setPersistenceManagerFactoryBeanName(String persistenceManagerFactoryBeanName)`	Set the bean name of the PersistenceManagerFactory to fetch from Spring's root application context.
`protected boolean`	`shouldNotFilterAsyncDispatch()`	Returns "false" so that the filter may re-bind the opened `PersistenceManager` to each asynchronously dispatched thread and postpone closing it until the very last asynchronous dispatch.
`protected boolean`	`shouldNotFilterErrorDispatch()`	Returns "false" so that the filter may provide an `PersistenceManager` to each error dispatches.

从类继承的方法 org.springframework.web.filter.OncePerRequestFilter
doFilter, getAlreadyFilteredAttributeName, isAsyncDispatch, isAsyncStarted, shouldNotFilter

从类继承的方法 org.springframework.web.filter.GenericFilterBean
addRequiredProperty, afterPropertiesSet, createEnvironment, destroy, getEnvironment, getFilterConfig, getFilterName, getServletContext, init, initBeanWrapper, initFilterBean, setBeanName, setEnvironment, setServletContext

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - DEFAULT_PERSISTENCE_MANAGER_FACTORY_BEAN_NAME
```
public static final String DEFAULT_PERSISTENCE_MANAGER_FACTORY_BEAN_NAME
```
    另请参阅:
    常量字段值
- 构造器详细资料
  - OpenPersistenceManagerInViewFilter
```
public OpenPersistenceManagerInViewFilter()
```
- 方法详细资料
  - setPersistenceManagerFactoryBeanName
```
public void setPersistenceManagerFactoryBeanName(String persistenceManagerFactoryBeanName)
```
    Set the bean name of the PersistenceManagerFactory to fetch from Spring's root application context. Default is "persistenceManagerFactory".
    另请参阅:
    DEFAULT_PERSISTENCE_MANAGER_FACTORY_BEAN_NAME
  - getPersistenceManagerFactoryBeanName
```
protected String getPersistenceManagerFactoryBeanName()
```
    Return the bean name of the PersistenceManagerFactory to fetch from Spring's root application context.
  - shouldNotFilterAsyncDispatch
```
protected boolean shouldNotFilterAsyncDispatch()
```
    Returns "false" so that the filter may re-bind the opened PersistenceManager to each asynchronously dispatched thread and postpone closing it until the very last asynchronous dispatch.
    覆盖:
    shouldNotFilterAsyncDispatch 在类中 OncePerRequestFilter
  - shouldNotFilterErrorDispatch
```
protected boolean shouldNotFilterErrorDispatch()
```
    Returns "false" so that the filter may provide an PersistenceManager to each error dispatches.
    覆盖:
    shouldNotFilterErrorDispatch 在类中 OncePerRequestFilter
  - doFilterInternal
```
protected void doFilterInternal(HttpServletRequest request,
                                HttpServletResponse response,
                                FilterChain filterChain)
                         throws ServletException,
                                IOException
```
    从类复制的说明: OncePerRequestFilter
    Same contract as for doFilter, but guaranteed to be just invoked once per request within a single request thread. See OncePerRequestFilter.shouldNotFilterAsyncDispatch() for details.
    Provides HttpServletRequest and HttpServletResponse arguments instead of the default ServletRequest and ServletResponse ones.
    指定者:
    doFilterInternal 在类中 OncePerRequestFilter
    抛出:
    ServletException
    IOException
  - lookupPersistenceManagerFactory
```
protected javax.jdo.PersistenceManagerFactory lookupPersistenceManagerFactory(HttpServletRequest request)
```
    Look up the PersistenceManagerFactory that this filter should use, taking the current HTTP request as argument.
    Default implementation delegates to the lookupPersistenceManagerFactory without arguments.
    返回:
    the PersistenceManagerFactory to use
    另请参阅:
    lookupPersistenceManagerFactory()
  - lookupPersistenceManagerFactory
```
protected javax.jdo.PersistenceManagerFactory lookupPersistenceManagerFactory()
```
    Look up the PersistenceManagerFactory that this filter should use. The default implementation looks for a bean with the specified name in Spring's root application context.
    返回:
    the PersistenceManagerFactory to use
    另请参阅:
    getPersistenceManagerFactoryBeanName()

类 OpenPersistenceManagerInViewFilter

字段概要

从类继承的字段 org.springframework.web.filter.OncePerRequestFilter

从类继承的字段 org.springframework.web.filter.GenericFilterBean

构造器概要

方法概要

从类继承的方法 org.springframework.web.filter.OncePerRequestFilter

从类继承的方法 org.springframework.web.filter.GenericFilterBean

从类继承的方法 java.lang.Object

字段详细资料

DEFAULT_PERSISTENCE_MANAGER_FACTORY_BEAN_NAME

构造器详细资料

OpenPersistenceManagerInViewFilter

方法详细资料

setPersistenceManagerFactoryBeanName

getPersistenceManagerFactoryBeanName

shouldNotFilterAsyncDispatch

shouldNotFilterErrorDispatch

doFilterInternal

lookupPersistenceManagerFactory

lookupPersistenceManagerFactory