java.lang.Object
- org.springframework.batch.item.database.HibernateItemReaderHelper<T>

所有已实现的接口:
org.springframework.beans.factory.InitializingBean
```
public class HibernateItemReaderHelper<T>
extends java.lang.Object
implements org.springframework.beans.factory.InitializingBean
```
Internal shared state helper for hibernate readers managing sessions and queries.
作者:
Dave Syer

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

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
`void`	`afterPropertiesSet()`
`void`	`clear()`	Clear the session if stateful.
`void`	`close()`	Close the open session (stateful or otherwise).
`org.hibernate.Query`	`createQuery()`	Open appropriate type of hibernate session and create the query.
`org.hibernate.ScrollableResults`	`getForwardOnlyCursor(int fetchSize, java.util.Map<java.lang.String,java.lang.Object> parameterValues)`	Get a cursor over all of the results, with the forward-only flag set.
`void`	`jumpToItem(org.hibernate.ScrollableResults cursor, int itemIndex, int flushInterval)`	Scroll through the results up to the item specified.
`java.util.Collection<? extends T>`	`readPage(int page, int pageSize, int fetchSize, java.util.Map<java.lang.String,java.lang.Object> parameterValues)`	Read a page of data, clearing the existing session (if necessary) first, and creating a new session before executing the query.
`void`	`setQueryName(java.lang.String queryName)`
`void`	`setQueryProvider(HibernateQueryProvider<? extends T> queryProvider)`
`void`	`setQueryString(java.lang.String queryString)`
`void`	`setSessionFactory(org.hibernate.SessionFactory sessionFactory)`
`void`	`setUseStatelessSession(boolean useStatelessSession)`	Can be set only in uninitialized state.

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

- 构造器详细资料
  - HibernateItemReaderHelper
```
public HibernateItemReaderHelper()
```
- 方法详细资料
  - setQueryName
```
public void setQueryName(java.lang.String queryName)
```
    参数:
    queryName - name of a hibernate named query
  - setQueryString
```
public void setQueryString(java.lang.String queryString)
```
    参数:
    queryString - HQL query string
  - setQueryProvider
```
public void setQueryProvider(HibernateQueryProvider<? extends T> queryProvider)
```
    参数:
    queryProvider - Hibernate query provider
  - setUseStatelessSession
```
public void setUseStatelessSession(boolean useStatelessSession)
```
    Can be set only in uninitialized state.
    参数:
    useStatelessSession - true to use StatelessSessionfalse to use standard hibernate Session
  - setSessionFactory
```
public void setSessionFactory(org.hibernate.SessionFactory sessionFactory)
```
    参数:
    sessionFactory - hibernate session factory
  - afterPropertiesSet
```
public void afterPropertiesSet()
                        throws java.lang.Exception
```
    指定者:
    afterPropertiesSet 在接口中 org.springframework.beans.factory.InitializingBean
    抛出:
    java.lang.Exception
  - getForwardOnlyCursor
```
public org.hibernate.ScrollableResults getForwardOnlyCursor(int fetchSize,
                                                            java.util.Map<java.lang.String,java.lang.Object> parameterValues)
```
    Get a cursor over all of the results, with the forward-only flag set.
    参数:
    fetchSize - the fetch size to use retrieving the results
    parameterValues - the parameter values to use (or null if none).
    返回:
    a forward-only ScrollableResults
  - createQuery
```
public org.hibernate.Query createQuery()
```
    Open appropriate type of hibernate session and create the query.
    返回:
    a Hibernate Query
  - jumpToItem
```
public void jumpToItem(org.hibernate.ScrollableResults cursor,
                       int itemIndex,
                       int flushInterval)
```
    Scroll through the results up to the item specified.
    参数:
    cursor - the results to scroll over
    itemIndex - index to scroll to
    flushInterval - the number of items to scroll past before flushing
  - close
```
public void close()
```
    Close the open session (stateful or otherwise).
  - readPage
```
public java.util.Collection<? extends T> readPage(int page,
                                                  int pageSize,
                                                  int fetchSize,
                                                  java.util.Map<java.lang.String,java.lang.Object> parameterValues)
```
    Read a page of data, clearing the existing session (if necessary) first, and creating a new session before executing the query.
    参数:
    page - the page to read (starting at 0)
    pageSize - the size of the page or maximum number of items to read
    fetchSize - the fetch size to use
    parameterValues - the parameter values to use (if any, otherwise null)
    返回:
    a collection of items
  - clear
```
public void clear()
```
    Clear the session if stateful.

类 HibernateItemReaderHelper<T>

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

HibernateItemReaderHelper

方法详细资料

setQueryName

setQueryString

setQueryProvider

setUseStatelessSession

setSessionFactory

afterPropertiesSet

getForwardOnlyCursor

createQuery

jumpToItem

close

readPage

clear