TypedItemReader (BatchEE 1.0.5-SNAPSHOT API)

java.lang.Object
- org.apache.batchee.extras.typed.TypedItemReader<R,C>

Type Parameters:

R - The type of the item returned in readItem().

C - The type of the Checkpoint. See doCheckpointInfo() and doRead()

All Implemented Interfaces:

javax.batch.api.chunk.ItemReader

Direct Known Subclasses:

NoStateTypedItemReader
```
public abstract class TypedItemReader<R,C extends Serializable>
extends Object
implements javax.batch.api.chunk.ItemReader
```
Typesafe abstraction of an ItemReader.

Constructor Summary

Constructors
Constructor Description

TypedItemReader()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`Serializable`	`checkpointInfo()`
`protected abstract C`	`doCheckpointInfo()`
`protected abstract void`	`doOpen(C checkpoint)`
`protected abstract R`	`doRead()`
`void`	`open(Serializable checkpoint)`
`Object`	`readItem()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.batch.api.chunk.ItemReader
close

Constructor Detail
- TypedItemReader
```
public TypedItemReader()
```

Method Detail

doOpen

protected abstract void doOpen(C checkpoint)

doRead
```
protected abstract R doRead()
```

doCheckpointInfo

protected abstract C doCheckpointInfo()

open
```
public void open(Serializable checkpoint)
          throws Exception
```
Specified by:

open in interface javax.batch.api.chunk.ItemReader

Throws:

Exception

readItem
```
public Object readItem()
                throws Exception
```
Specified by:

readItem in interface javax.batch.api.chunk.ItemReader

Throws:

Exception

checkpointInfo
```
public Serializable checkpointInfo()
                            throws Exception
```
Specified by:

checkpointInfo in interface javax.batch.api.chunk.ItemReader

Throws:

Exception