[hibernate-issues] [Hibernate-JIRA] Created: (HSEARCH-758) create DirectoryManager to handle different I/O aspects of an index

[Sanne Grinovero (JIRA)]

create DirectoryManager to handle different I/O aspects of an index
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                 Key: HSEARCH-758
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-758
             Project: Hibernate Search
          Issue Type: Improvement
            Reporter: Sanne Grinovero
             Fix For: 4.0.0.Alpha1


Near-Real-Time Lucene usage requires a coupling between the indexwriter and the indexreaders being used for searches.
Also to make other features simpler we need to manage indexwriters and indexreaders in a more integrated form (Infinispan).

refactor : DirectoryProvider

    * make a "DirectoryManager" instead, which is able to provide factories for both IndexReader an IndexWriters
    * add utility methods like "getName()"
          o (wish I had that in some cases to provide better error messages)
    * Instead of trying to foresee all needed methods, the extension point should not be the DirectoryManager interface directly, but have people plug in different aspects.
    * This is needed to eventually support:
          o Instantiated indexes - HSEARCH-336
          o make good use of all new so called "Near-Real-Time" Lucene improvements by having IndexReader and IndexWriter possibly generated by the same service
          o reuse the JGroups channel used by the Infinispan Directory as transport for a backend (again, the two components need to interact)

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