java.lang.Object
- org.springframework.batch.item.ItemStreamSupport
- - org.springframework.batch.item.support.AbstractItemStreamItemReader<T>
  - - org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader<org.springframework.ldap.core.LdapAttributes>
    - - org.springframework.batch.item.ldif.LdifReader

所有已实现的接口:
ResourceAwareItemReaderItemStream<org.springframework.ldap.core.LdapAttributes>, ItemReader<org.springframework.ldap.core.LdapAttributes>, ItemStream, ItemStreamReader<org.springframework.ldap.core.LdapAttributes>, org.springframework.beans.factory.InitializingBean
```
public class LdifReader
extends AbstractItemCountingItemStreamItemReader<org.springframework.ldap.core.LdapAttributes>
implements ResourceAwareItemReaderItemStream<org.springframework.ldap.core.LdapAttributes>, org.springframework.beans.factory.InitializingBean
```
The LdifReader is an adaptation of the FlatFileItemReader built around an LdifParser.
Unlike the FlatFileItemReader, the LdifReader does not require a mapper. Instead, this version of the LdifReader simply returns an LdapAttributes object which can be consumed and manipulated as necessary by ItemProcessor or any output service. Alternatively, the RecordMapper interface can be implemented and set in a MappingLdifReader to map records to objects for return.
LdifReader usage is mimics that of the FlatFileItemReader for all intensive purposes. Adjustments have been made to process records instead of lines, however. As such, the recordsToSkip attribute indicates the number of records from the top of the file that should not be processed. Implementations of the RecordCallbackHandler interface can be used to execute operations on those skipped records.
As with the FlatFileItemReader, the strict option differentiates between whether or not to require the resource to exist before processing. In the case of a value set to false, a warning is logged instead of an exception being thrown.
作者:
Keith Barlow

构造器概要
构造器
构造器说明
LdifReader()

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()`
`protected void`	`doClose()`	Close the resources opened in `AbstractItemCountingItemStreamItemReader.doOpen()`.
`protected void`	`doOpen()`	Open resources necessary to start reading input.
`protected org.springframework.ldap.core.LdapAttributes`	`doRead()`	Read next item from input.
`void`	`setRecordsToSkip(int recordsToSkip)`	Public setter for the number of lines to skip at the start of a file.
`void`	`setResource(org.springframework.core.io.Resource resource)`	Establishes the resource that will be used as the input for the LdifReader.
`void`	`setSkippedRecordsCallback(RecordCallbackHandler skippedRecordsCallback)`	`RecordCallbackHandler` implementations can be used to take action on skipped records.
`void`	`setStrict(boolean strict)`	In strict mode the reader will throw an exception on `AbstractItemCountingItemStreamItemReader.open(org.springframework.batch.item.ExecutionContext)` if the input resource does not exist.

从类继承的方法 org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader
close, getCurrentItemCount, isSaveState, jumpToItem, open, read, setCurrentItemCount, setMaxItemCount, setSaveState, update

从类继承的方法 org.springframework.batch.item.ItemStreamSupport
getExecutionContextKey, setExecutionContextName, setName

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

从接口继承的方法 org.springframework.batch.item.ItemReader
read

从接口继承的方法 org.springframework.batch.item.ItemStream
close, open, update

- 构造器详细资料
  - LdifReader
```
public LdifReader()
```
- 方法详细资料
  - setStrict
```
public void setStrict(boolean strict)
```
    In strict mode the reader will throw an exception on AbstractItemCountingItemStreamItemReader.open(org.springframework.batch.item.ExecutionContext) if the input resource does not exist.
    参数:
    strict - true by default
  - setSkippedRecordsCallback
```
public void setSkippedRecordsCallback(RecordCallbackHandler skippedRecordsCallback)
```
    RecordCallbackHandler implementations can be used to take action on skipped records.
    参数:
    skippedRecordsCallback - will be called for each one of the initial skipped lines before any items are read.
  - setRecordsToSkip
```
public void setRecordsToSkip(int recordsToSkip)
```
    Public setter for the number of lines to skip at the start of a file. Can be used if the file contains a header without useful (column name) information, and without a comment delimiter at the beginning of the lines.
    参数:
    recordsToSkip - the number of lines to skip
  - doClose
```
protected void doClose()
                throws java.lang.Exception
```
    从类复制的说明: AbstractItemCountingItemStreamItemReader
    Close the resources opened in AbstractItemCountingItemStreamItemReader.doOpen().
    指定者:
    doClose 在类中 AbstractItemCountingItemStreamItemReader<org.springframework.ldap.core.LdapAttributes>
    抛出:
    java.lang.Exception - Allows subclasses to throw checked exceptions for interpretation by the framework
  - doOpen
```
protected void doOpen()
               throws java.lang.Exception
```
    从类复制的说明: AbstractItemCountingItemStreamItemReader
    Open resources necessary to start reading input.
    指定者:
    doOpen 在类中 AbstractItemCountingItemStreamItemReader<org.springframework.ldap.core.LdapAttributes>
    抛出:
    java.lang.Exception - Allows subclasses to throw checked exceptions for interpretation by the framework
  - doRead
```
protected org.springframework.ldap.core.LdapAttributes doRead()
                                                       throws java.lang.Exception
```
    从类复制的说明: AbstractItemCountingItemStreamItemReader
    Read next item from input.
    指定者:
    doRead 在类中 AbstractItemCountingItemStreamItemReader<org.springframework.ldap.core.LdapAttributes>
    返回:
    an item or null if the data source is exhausted
    抛出:
    java.lang.Exception - Allows subclasses to throw checked exceptions for interpretation by the framework
  - setResource
```
public void setResource(org.springframework.core.io.Resource resource)
```
    Establishes the resource that will be used as the input for the LdifReader.
    指定者:
    setResource 在接口中 ResourceAwareItemReaderItemStream<org.springframework.ldap.core.LdapAttributes>
    参数:
    resource - the resource that will be read.
  - 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

类 LdifReader

构造器概要

方法概要

从类继承的方法 org.springframework.batch.item.support.AbstractItemCountingItemStreamItemReader

从类继承的方法 org.springframework.batch.item.ItemStreamSupport

从类继承的方法 java.lang.Object

从接口继承的方法 org.springframework.batch.item.ItemReader

从接口继承的方法 org.springframework.batch.item.ItemStream

构造器详细资料

LdifReader

方法详细资料

setStrict

setSkippedRecordsCallback

setRecordsToSkip

doClose

doOpen

doRead

setResource

afterPropertiesSet