org.opencms.search
Class CmsSearchIndex.LazyContentReader

java.lang.Object
  org.apache.lucene.index.IndexReader
      org.apache.lucene.index.FilterIndexReader
          org.opencms.search.CmsSearchIndex.LazyContentReader

Enclosing class:

CmsSearchIndex

protected class CmsSearchIndex.LazyContentReader
extends org.apache.lucene.index.FilterIndexReader

Lucene filter index reader implementation that will ensure the OpenCms default search index fields CmsSearchField.FIELD_CONTENT and CmsSearchField.FIELD_CONTENT_BLOB are lazy loaded.

This is to optimize performance - these 2 fields will be rather large especially for extracted binary documents like PDF, MS Office etc. By using lazy fields the data is only read when it is actually used.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.index.FilterIndexReader

org.apache.lucene.index.FilterIndexReader.FilterTermDocs, org.apache.lucene.index.FilterIndexReader.FilterTermEnum, org.apache.lucene.index.FilterIndexReader.FilterTermPositions

Nested classes/interfaces inherited from class org.apache.lucene.index.IndexReader

org.apache.lucene.index.IndexReader.FieldOption

Field Summary

Fields inherited from class org.apache.lucene.index.FilterIndexReader

in

Fields inherited from class org.apache.lucene.index.IndexReader

hasChanges

Constructor Summary

CmsSearchIndex.LazyContentReader(org.apache.lucene.index.IndexReader indexReader)
Create a new lazy content reader.

Method Summary

org.apache.lucene.document.Document

document(int n)

Methods inherited from class org.apache.lucene.index.FilterIndexReader

directory, docFreq, doClose, doCommit, document, doDelete, doSetNorm, doUndeleteAll, getFieldNames, getTermFreqVector, getTermFreqVector, getTermFreqVector, getTermFreqVectors, getVersion, hasDeletions, hasNorms, isCurrent, isDeleted, isOptimized, maxDoc, norms, norms, numDocs, termDocs, termPositions, terms, terms

Methods inherited from class org.apache.lucene.index.IndexReader

acquireWriteLock, close, commit, decRef, deleteDocument, deleteDocuments, ensureOpen, flush, getCurrentVersion, getCurrentVersion, getCurrentVersion, getIndexCommit, getTermInfosIndexDivisor, incRef, indexExists, indexExists, indexExists, isLocked, isLocked, lastModified, lastModified, lastModified, listCommits, main, numDeletedDocs, open, open, open, open, open, open, open, open, open, reopen, setNorm, setNorm, setTermInfosIndexDivisor, termDocs, termPositions, undeleteAll, unlock

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CmsSearchIndex.LazyContentReader

public CmsSearchIndex.LazyContentReader(org.apache.lucene.index.IndexReader indexReader)

Create a new lazy content reader.

Parameters:

indexReader - the index reader to use this lazy content reader with

Method Detail

document

public org.apache.lucene.document.Document document(int n)
                                             throws org.apache.lucene.index.CorruptIndexException,
                                                    java.io.IOException

Overrides:

document in class org.apache.lucene.index.IndexReader

Throws:

org.apache.lucene.index.CorruptIndexException

java.io.IOException

See Also:

IndexReader.document(int)