[LUCENE-3736] ParallelReader is now atomic, rename to ParallelAtomicReader and also add a ParallelCompositeReader (that requires LogDocMergePolicy to have identical subreader structure)

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0-ALPHA
• Component/s: core/index
• Lucene Fields: New
• Assignee: Uwe Schindler
• Reporter: Uwe Schindler
• Created: 31/Jan/12 10:25
• Updated: 10/May/13 10:45
• Resolved: 21/Feb/12 16:17

Description

The plan is:

• Move all subreaders to ctor (builder-like API. First build reader-set, then call build)
• Rename ParallelReader to ParallelAtomicReader
• Add a ParallelCompositeReader with same builder API, but taking any CompositeReader-set and checks them that they are aligned (docStarts identical). The subreaders are ParallelAtomicReaders.