[BATCHEE-40] rename BufferedItemReader to NoStateBufferedItemReader and implement a BufferedItemReader<R, C> to have one with a checkpoint

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 0.2-incubating
• Component/s: batchee-extensions
• Assignee: Unassigned
• Reporter: Reinhard Sandtner
• Created: 14/May/14 20:31
• Updated: 29/Apr/21 19:39
• Resolved: 29/Apr/21 19:39

Description

currently the BufferedItemReader<R> extends NoStateTypedItemReader<R> but we also need a BufferedItemReader which has a 'state'.

The problem is how to get the last processed index.
i.e. we can count the number of chunks and on restart we calculate where to continue