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Java Source Code / Java Documentation » Net » lucene connector » org.apache.lucene.index 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.lucene.index.IndexReader
      org.apache.lucene.index.MultiReader

MultiReader
public class MultiReader extends IndexReader (Code)
An IndexReader which reads multiple indexes, appending their content.
version:
   $Id: MultiReader.java 596004 2007-11-17 21:34:23Z buschmi $


Field Summary
protected  IndexReader[]subReaders
    

Constructor Summary
public  MultiReader(IndexReader[] subReaders)
    

Construct a MultiReader aggregating the named set of (sub)readers. Directory locking for delete, undeleteAll, and setNorm operations is left to the subreaders.

public  MultiReader(IndexReader[] subReaders, boolean closeSubReaders)
    

Construct a MultiReader aggregating the named set of (sub)readers. Directory locking for delete, undeleteAll, and setNorm operations is left to the subreaders.


Method Summary
protected synchronized  voiddoClose()
    
protected  voiddoCommit()
    
protected  voiddoDelete(int n)
    
protected  voiddoSetNorm(int n, String field, byte value)
    
protected  voiddoUndeleteAll()
    
public  intdocFreq(Term t)
    
public  Documentdocument(int n, FieldSelector fieldSelector)
    
public  CollectiongetFieldNames(IndexReader.FieldOption fieldNames)
    
 IndexReader[]getSubReaders()
    
public  TermFreqVectorgetTermFreqVector(int n, String field)
    
public  voidgetTermFreqVector(int docNumber, String field, TermVectorMapper mapper)
    
public  voidgetTermFreqVector(int docNumber, TermVectorMapper mapper)
    
public  TermFreqVector[]getTermFreqVectors(int n)
    
public  longgetVersion()
     Not implemented.
public  booleanhasDeletions()
    
public  booleanhasNorms(String field)
    
public  booleanisCurrent()
     Checks recursively if all subreaders are up to date.
public  booleanisDeleted(int n)
    
public  booleanisOptimized()
    
public  intmaxDoc()
    
public synchronized  byte[]norms(String field)
    
public synchronized  voidnorms(String field, byte[] result, int offset)
    
public synchronized  intnumDocs()
    
public  IndexReaderreopen()
     Tries to reopen the subreaders.
If one or more subreaders could be re-opened (i.
public  TermDocstermDocs()
    
public  TermPositionstermPositions()
    
public  TermEnumterms()
    
public  TermEnumterms(Term term)
    

Field Detail
subReaders
protected IndexReader[] subReaders(Code)




Constructor Detail
MultiReader
public MultiReader(IndexReader[] subReaders)(Code)

Construct a MultiReader aggregating the named set of (sub)readers. Directory locking for delete, undeleteAll, and setNorm operations is left to the subreaders.

Note that all subreaders are closed if this Multireader is closed.


Parameters:
  subReaders - set of (sub)readers
throws:
  IOException -



MultiReader
public MultiReader(IndexReader[] subReaders, boolean closeSubReaders)(Code)

Construct a MultiReader aggregating the named set of (sub)readers. Directory locking for delete, undeleteAll, and setNorm operations is left to the subreaders.


Parameters:
  closeSubReaders - indicates whether the subreaders should be closedwhen this MultiReader is closed
Parameters:
  subReaders - set of (sub)readers
throws:
  IOException -




Method Detail
doClose
protected synchronized void doClose() throws IOException(Code)



doCommit
protected void doCommit() throws IOException(Code)



doDelete
protected void doDelete(int n) throws CorruptIndexException, IOException(Code)



doSetNorm
protected void doSetNorm(int n, String field, byte value) throws CorruptIndexException, IOException(Code)



doUndeleteAll
protected void doUndeleteAll() throws CorruptIndexException, IOException(Code)



docFreq
public int docFreq(Term t) throws IOException(Code)



document
public Document document(int n, FieldSelector fieldSelector) throws CorruptIndexException, IOException(Code)



getFieldNames
public Collection getFieldNames(IndexReader.FieldOption fieldNames)(Code)



getSubReaders
IndexReader[] getSubReaders()(Code)



getTermFreqVector
public TermFreqVector getTermFreqVector(int n, String field) throws IOException(Code)



getTermFreqVector
public void getTermFreqVector(int docNumber, String field, TermVectorMapper mapper) throws IOException(Code)



getTermFreqVector
public void getTermFreqVector(int docNumber, TermVectorMapper mapper) throws IOException(Code)



getTermFreqVectors
public TermFreqVector[] getTermFreqVectors(int n) throws IOException(Code)



getVersion
public long getVersion()(Code)
Not implemented.
throws:
  UnsupportedOperationException -



hasDeletions
public boolean hasDeletions()(Code)



hasNorms
public boolean hasNorms(String field) throws IOException(Code)



isCurrent
public boolean isCurrent() throws CorruptIndexException, IOException(Code)
Checks recursively if all subreaders are up to date.



isDeleted
public boolean isDeleted(int n)(Code)



isOptimized
public boolean isOptimized()(Code)



maxDoc
public int maxDoc()(Code)



norms
public synchronized byte[] norms(String field) throws IOException(Code)



norms
public synchronized void norms(String field, byte[] result, int offset) throws IOException(Code)



numDocs
public synchronized int numDocs()(Code)



reopen
public IndexReader reopen() throws CorruptIndexException, IOException(Code)
Tries to reopen the subreaders.
If one or more subreaders could be re-opened (i. e. subReader.reopen() returned a new instance != subReader), then a new MultiReader instance is returned, otherwise this instance is returned.

A re-opened instance might share one or more subreaders with the old instance. Index modification operations result in undefined behavior when performed before the old instance is closed. (see IndexReader.reopen ).

If subreaders are shared, then the reference count of those readers is increased to ensure that the subreaders remain open until the last referring reader is closed.
throws:
  CorruptIndexException - if the index is corrupt
throws:
  IOException - if there is a low-level IO error




termDocs
public TermDocs termDocs() throws IOException(Code)



termPositions
public TermPositions termPositions() throws IOException(Code)



terms
public TermEnum terms() throws IOException(Code)



terms
public TermEnum terms(Term term) throws IOException(Code)



Fields inherited from org.apache.lucene.index.IndexReader
protected boolean hasChanges(Code)(Java Doc)

Methods inherited from org.apache.lucene.index.IndexReader
protected synchronized void acquireWriteLock() throws IOException(Code)(Java Doc)
final public synchronized void close() throws IOException(Code)(Java Doc)
final protected synchronized void commit() throws IOException(Code)(Java Doc)
protected synchronized void decRef() throws IOException(Code)(Java Doc)
final public synchronized void deleteDocument(int docNum) throws StaleReaderException, CorruptIndexException, LockObtainFailedException, IOException(Code)(Java Doc)
final public int deleteDocuments(Term term) throws StaleReaderException, CorruptIndexException, LockObtainFailedException, IOException(Code)(Java Doc)
public Directory directory()(Code)(Java Doc)
abstract protected void doClose() throws IOException(Code)(Java Doc)
abstract protected void doCommit() throws IOException(Code)(Java Doc)
abstract protected void doDelete(int docNum) throws CorruptIndexException, IOException(Code)(Java Doc)
abstract protected void doSetNorm(int doc, String field, byte value) throws CorruptIndexException, IOException(Code)(Java Doc)
abstract protected void doUndeleteAll() throws CorruptIndexException, IOException(Code)(Java Doc)
abstract public int docFreq(Term t) throws IOException(Code)(Java Doc)
public Document document(int n) throws CorruptIndexException, IOException(Code)(Java Doc)
abstract public Document document(int n, FieldSelector fieldSelector) throws CorruptIndexException, IOException(Code)(Java Doc)
final protected void ensureOpen() throws AlreadyClosedException(Code)(Java Doc)
final public synchronized void flush() throws IOException(Code)(Java Doc)
public static long getCurrentVersion(String directory) throws CorruptIndexException, IOException(Code)(Java Doc)
public static long getCurrentVersion(File directory) throws CorruptIndexException, IOException(Code)(Java Doc)
public static long getCurrentVersion(Directory directory) throws CorruptIndexException, IOException(Code)(Java Doc)
abstract public Collection getFieldNames(FieldOption fldOption)(Code)(Java Doc)
synchronized int getRefCount()(Code)(Java Doc)
abstract public TermFreqVector getTermFreqVector(int docNumber, String field) throws IOException(Code)(Java Doc)
abstract public void getTermFreqVector(int docNumber, String field, TermVectorMapper mapper) throws IOException(Code)(Java Doc)
abstract public void getTermFreqVector(int docNumber, TermVectorMapper mapper) throws IOException(Code)(Java Doc)
abstract public TermFreqVector[] getTermFreqVectors(int docNumber) throws IOException(Code)(Java Doc)
public int getTermInfosIndexDivisor()(Code)(Java Doc)
public long getVersion()(Code)(Java Doc)
abstract public boolean hasDeletions()(Code)(Java Doc)
public boolean hasNorms(String field) throws IOException(Code)(Java Doc)
protected synchronized void incRef()(Code)(Java Doc)
public static boolean indexExists(String directory)(Code)(Java Doc)
public static boolean indexExists(File directory)(Code)(Java Doc)
public static boolean indexExists(Directory directory) throws IOException(Code)(Java Doc)
public boolean isCurrent() throws CorruptIndexException, IOException(Code)(Java Doc)
abstract public boolean isDeleted(int n)(Code)(Java Doc)
public static boolean isLocked(Directory directory) throws IOException(Code)(Java Doc)
public static boolean isLocked(String directory) throws IOException(Code)(Java Doc)
public boolean isOptimized()(Code)(Java Doc)
public static long lastModified(String directory) throws CorruptIndexException, IOException(Code)(Java Doc)
public static long lastModified(File fileDirectory) throws CorruptIndexException, IOException(Code)(Java Doc)
public static long lastModified(Directory directory2) throws CorruptIndexException, IOException(Code)(Java Doc)
public static void main(String[] args)(Code)(Java Doc)
abstract public int maxDoc()(Code)(Java Doc)
abstract public byte[] norms(String field) throws IOException(Code)(Java Doc)
abstract public void norms(String field, byte[] bytes, int offset) throws IOException(Code)(Java Doc)
abstract public int numDocs()(Code)(Java Doc)
public static IndexReader open(String path) throws CorruptIndexException, IOException(Code)(Java Doc)
public static IndexReader open(File path) throws CorruptIndexException, IOException(Code)(Java Doc)
public static IndexReader open(Directory directory) throws CorruptIndexException, IOException(Code)(Java Doc)
public static IndexReader open(Directory directory, IndexDeletionPolicy deletionPolicy) throws CorruptIndexException, IOException(Code)(Java Doc)
public synchronized IndexReader reopen() throws CorruptIndexException, IOException(Code)(Java Doc)
final public synchronized void setNorm(int doc, String field, byte value) throws StaleReaderException, CorruptIndexException, LockObtainFailedException, IOException(Code)(Java Doc)
public void setNorm(int doc, String field, float value) throws StaleReaderException, CorruptIndexException, LockObtainFailedException, IOException(Code)(Java Doc)
public void setTermInfosIndexDivisor(int indexDivisor) throws IllegalStateException(Code)(Java Doc)
public TermDocs termDocs(Term term) throws IOException(Code)(Java Doc)
abstract public TermDocs termDocs() throws IOException(Code)(Java Doc)
public TermPositions termPositions(Term term) throws IOException(Code)(Java Doc)
abstract public TermPositions termPositions() throws IOException(Code)(Java Doc)
abstract public TermEnum terms() throws IOException(Code)(Java Doc)
abstract public TermEnum terms(Term t) throws IOException(Code)(Java Doc)
final public synchronized void undeleteAll() throws StaleReaderException, CorruptIndexException, LockObtainFailedException, IOException(Code)(Java Doc)
public static void unlock(Directory directory) throws IOException(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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