org.apache.jackrabbit.core.query.lucene
Class SearchIndex.CombinedIndexReader

java.lang.Object
  org.apache.lucene.index.IndexReader
      org.apache.lucene.index.MultiReader
          org.apache.jackrabbit.core.query.lucene.SearchIndex.CombinedIndexReader

All Implemented Interfaces:

HierarchyResolver

Enclosing class:

SearchIndex

protected static final class SearchIndex.CombinedIndexReader

extends org.apache.lucene.index.MultiReader

implements HierarchyResolver

Combines multiple CachingMultiReader into a MultiReader with HierarchyResolver support.

Constructor Summary

SearchIndex.CombinedIndexReader(CachingMultiReader[] indexReaders)

Method Summary

int	getParent(int n) Returns the document number of the parent of n or -1 if n does not have a parent (n is the root node).

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

docFreq, doClose, doCommit, document, doDelete, doSetNorm, doUndeleteAll, getFieldNames, getFieldNames, getIndexedFieldNames, getTermFreqVector, getTermFreqVectors, hasDeletions, isDeleted, maxDoc, norms, norms, numDocs, termDocs, termPositions, terms, terms

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

close, commit, delete, delete, directory, finalize, getCurrentVersion, getCurrentVersion, getCurrentVersion, indexExists, indexExists, indexExists, isLocked, isLocked, lastModified, lastModified, lastModified, open, open, open, setNorm, setNorm, termDocs, termPositions, undeleteAll, unlock

Methods inherited from class java.lang.Object

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

Constructor Detail

SearchIndex.CombinedIndexReader

public SearchIndex.CombinedIndexReader(CachingMultiReader[] indexReaders)
                                throws IOException

Method Detail

getParent

public int getParent(int n)
              throws IOException

Description copied from interface: HierarchyResolver

Returns the document number of the parent of n or -1 if n does not have a parent (n is the root node).

Specified by:

getParent in interface HierarchyResolver

Parameters:

n - the document number.

Returns:

the document number of n's parent.

Throws:

IOException - if an error occurs while reading from the index.