org.apache.lucene.index

Class TrackingIndexWriter

java.lang.Object

org.apache.lucene.index.TrackingIndexWriter

public class TrackingIndexWriter
extends Object

Class that tracks changes to a delegated IndexWriter, used by ControlledRealTimeReopenThread to ensure specific changes are visible. Create this class (passing your IndexWriter), and then pass this class to ControlledRealTimeReopenThread. Be sure to make all changes via the TrackingIndexWriter, otherwise ControlledRealTimeReopenThread won't know about the changes.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Constructor Summary

Constructors

Constructor and Description
TrackingIndexWriter(IndexWriter writer) Create a TrackingIndexWriter wrapping the provided IndexWriter.

Method Summary

Modifier and Type	Method and Description
long	addDocument(Iterable<? extends IndexableField> d) Calls IndexWriter.addDocument(Iterable) and returns the generation that reflects this change.
long	addDocuments(Iterable<? extends Iterable<? extends IndexableField>> docs) Calls IndexWriter.addDocuments(Iterable) and returns the generation that reflects this change.
long	addIndexes(CodecReader... readers) Calls IndexWriter.addIndexes(CodecReader...) and returns the generation that reflects this change.
long	addIndexes(Directory... dirs) Calls IndexWriter.addIndexes(Directory...) and returns the generation that reflects this change.
long	deleteAll() Calls IndexWriter.deleteAll() and returns the generation that reflects this change.
long	deleteDocuments(Query... queries) Calls IndexWriter.deleteDocuments(Query...) and returns the generation that reflects this change.
long	deleteDocuments(Query q) Calls IndexWriter.deleteDocuments(Query...) and returns the generation that reflects this change.
long	deleteDocuments(Term... terms) Calls IndexWriter.deleteDocuments(Term...) and returns the generation that reflects this change.
long	deleteDocuments(Term t) Calls IndexWriter.deleteDocuments(Term...) and returns the generation that reflects this change.
long	getAndIncrementGeneration() Return and increment current gen.
long	getGeneration() Return the current generation being indexed.
IndexWriter	getIndexWriter() Return the wrapped IndexWriter.
long	tryDeleteDocument(IndexReader reader, int docID) Cals IndexWriter.tryDeleteDocument(IndexReader,int) and returns the generation that reflects this change.
long	updateDocument(Term t, Iterable<? extends IndexableField> d) Calls IndexWriter.updateDocument(Term,Iterable) and returns the generation that reflects this change.
long	updateDocuments(Term t, Iterable<? extends Iterable<? extends IndexableField>> docs) Calls IndexWriter.updateDocuments(Term,Iterable) and returns the generation that reflects this change.

Methods inherited from class java.lang.Object

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

Constructor Detail

TrackingIndexWriter

public TrackingIndexWriter(IndexWriter writer)

Create a TrackingIndexWriter wrapping the provided IndexWriter.

Method Detail

updateDocument

public long updateDocument(Term t,
                           Iterable<? extends IndexableField> d)
                    throws IOException

Calls IndexWriter.updateDocument(Term,Iterable) and returns the generation that reflects this change.

Throws:

IOException

updateDocuments

public long updateDocuments(Term t,
                            Iterable<? extends Iterable<? extends IndexableField>> docs)
                     throws IOException

Calls IndexWriter.updateDocuments(Term,Iterable) and returns the generation that reflects this change.

Throws:

IOException

deleteDocuments

public long deleteDocuments(Term t)
                     throws IOException

Calls IndexWriter.deleteDocuments(Term...) and returns the generation that reflects this change.

Throws:

IOException

deleteDocuments

public long deleteDocuments(Term... terms)
                     throws IOException

Calls IndexWriter.deleteDocuments(Term...) and returns the generation that reflects this change.

Throws:

IOException

deleteDocuments

public long deleteDocuments(Query q)
                     throws IOException

Calls IndexWriter.deleteDocuments(Query...) and returns the generation that reflects this change.

Throws:

IOException

deleteDocuments

public long deleteDocuments(Query... queries)
                     throws IOException

Calls IndexWriter.deleteDocuments(Query...) and returns the generation that reflects this change.

Throws:

IOException

deleteAll

public long deleteAll()
               throws IOException

Calls IndexWriter.deleteAll() and returns the generation that reflects this change.

Throws:

IOException

addDocument

public long addDocument(Iterable<? extends IndexableField> d)
                 throws IOException

Calls IndexWriter.addDocument(Iterable) and returns the generation that reflects this change.

Throws:

IOException

addDocuments

public long addDocuments(Iterable<? extends Iterable<? extends IndexableField>> docs)
                  throws IOException

Calls IndexWriter.addDocuments(Iterable) and returns the generation that reflects this change.

Throws:

IOException

addIndexes

public long addIndexes(Directory... dirs)
                throws IOException

Calls IndexWriter.addIndexes(Directory...) and returns the generation that reflects this change.

Throws:

IOException

addIndexes

public long addIndexes(CodecReader... readers)
                throws IOException

Calls IndexWriter.addIndexes(CodecReader...) and returns the generation that reflects this change.

Throws:

IOException

getGeneration

public long getGeneration()

Return the current generation being indexed.

getIndexWriter

public IndexWriter getIndexWriter()

Return the wrapped IndexWriter.

getAndIncrementGeneration

public long getAndIncrementGeneration()

Return and increment current gen.

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

tryDeleteDocument

public long tryDeleteDocument(IndexReader reader,
                              int docID)
                       throws IOException

Cals IndexWriter.tryDeleteDocument(IndexReader,int) and returns the generation that reflects this change.

Throws:

IOException