Package org.apache.batchee.extras.typed
Class TypedItemReader<R,C extends Serializable>
- java.lang.Object
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- org.apache.batchee.extras.typed.TypedItemReader<R,C>
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- Type Parameters:
R- The type of the item returned inreadItem().C- The type of the Checkpoint. SeedoCheckpointInfo()anddoRead()
- 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.
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Constructor Summary
Constructors Constructor Description TypedItemReader()
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description SerializablecheckpointInfo()protected abstract CdoCheckpointInfo()protected abstract voiddoOpen(C checkpoint)protected abstract RdoRead()voidopen(Serializable checkpoint)ObjectreadItem()
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Method Detail
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doOpen
protected abstract void doOpen(C checkpoint)
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doRead
protected abstract R doRead()
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doCheckpointInfo
protected abstract C doCheckpointInfo()
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open
public void open(Serializable checkpoint) throws Exception
- Specified by:
openin interfacejavax.batch.api.chunk.ItemReader- Throws:
Exception
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readItem
public Object readItem() throws Exception
- Specified by:
readItemin interfacejavax.batch.api.chunk.ItemReader- Throws:
Exception
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checkpointInfo
public Serializable checkpointInfo() throws Exception
- Specified by:
checkpointInfoin interfacejavax.batch.api.chunk.ItemReader- Throws:
Exception
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