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https://issues.apache.org/jira/browse/LUCENE-550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karl Wettin updated LUCENE-550:
-------------------------------
Attachment: trunk.diff.bz2
Added support for contrib/memory MemoryIndex, so now it works with readers and
writers as if it was any other index.
Added a consumer level index implementation that handles cache, notifications,
and all the stuff this issue is about:
// This is the instace one is supposed to use for all access against the index
in this JVM.
IndexFacade index = new IndexFacade(new RAMDirectoryIndex());
// Accessors
IndexWriterInterface writer = index.indexWriterFactory(anayzler, true);
Document doc = new Document();
doc.add(...
writer.add(doc);
writer.close();
IndexReader deleter = index.indexReaderFactory();
index.getSearcher().search(...
index.getReader().doc(0)
deleter.close();
assertEquals(0, index.getReader().numDocs());
public class IndexFacade {
/** wrapps any storage, optional cache settings */
public IndexFacade(I index, CachedSearcher.HitCollectionCacheState
hitCollectionCache, boolean topDocsCache, boolean topFieldsCache, boolean
documentsCache) throws IOException {
public CachedSearcher getSearcher() throws IOException {
/** The general consumer searcher to be used when querying this index. Always
fresh. */
public Searcher getSearcher() throws IOException {
/** The general consumer read only index reader to be used when inspecting
this index. Always fresh. */
public IndexReader getReader() throws IOException {
> InstantiatedIndex - faster but memory consuming index
> -----------------------------------------------------
>
> Key: LUCENE-550
> URL: https://issues.apache.org/jira/browse/LUCENE-550
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Store
> Affects Versions: 2.0.0
> Reporter: Karl Wettin
> Assigned To: Karl Wettin
> Attachments: lucene-550.jpg, test-reports.zip, trunk.diff.bz2,
> trunk.diff.bz2
>
>
> An non file centrinc all in memory index. Consumes some 2x the memory of a
> RAMDirectory (in a term satured index) but is between 3x-60x faster depending
> on application and how one counts. Average query is about 8x faster.
> IndexWriter and IndexModifier have been realized in InterfaceIndexWriter and
> InterfaceIndexModifier.
> InstantiatedIndex is wrapped in a new top layer index facade (class Index)
> that comes with factory methods for writers, readers and searchers for unison
> index handeling. There are decorators with notification handling that can be
> used for automatically syncronizing searchers on updates, et.c.
> Index also comes with FS/RAMDirectory implementation.
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