org.apache.lucene.index

Class RandomIndexWriter

java.lang.Object

org.apache.lucene.index.RandomIndexWriter

All Implemented Interfaces:

Closeable

public class RandomIndexWriter
extends Object
implements Closeable

Silly class that randomizes the indexing experience. EG it may swap in a different merge policy/scheduler; may commit periodically; may or may not forceMerge in the end, may flush by doc count instead of RAM, etc.

Field Summary

Fields

Modifier and Type	Field and Description
IndexWriter	w

Constructor Summary

Constructors

Constructor and Description
RandomIndexWriter(Random r, Directory dir) create a RandomIndexWriter with a random config: Uses TEST_VERSION_CURRENT and Whitespace+LowercasingAnalyzer
RandomIndexWriter(Random r, Directory dir, Analyzer a) create a RandomIndexWriter with a random config: Uses TEST_VERSION_CURRENT
RandomIndexWriter(Random r, Directory dir, IndexWriterConfig c) create a RandomIndexWriter with the provided config
RandomIndexWriter(Random r, Directory dir, Version v, Analyzer a) create a RandomIndexWriter with a random config

Method Summary

Methods

Modifier and Type	Method and Description
void	addDocument(Document doc) Adds a Document.
void	addDocuments(Collection<Document> docs)
void	addIndexes(Directory... dirs)
void	addIndexes(IndexReader... readers)
void	close() Close this writer.
void	commit()
void	deleteAll()
void	deleteDocuments(Query q)
void	deleteDocuments(Term term)
void	forceMerge(int maxSegmentCount) Forces a forceMerge.
void	forceMergeDeletes()
void	forceMergeDeletes(boolean doWait)
IndexReader	getReader()
IndexReader	getReader(boolean applyDeletions)
int	maxDoc()
int	numDocs()
void	setDoRandomForceMerge(boolean v)
void	setDoRandomForceMergeAssert(boolean v)
void	updateDocument(Term t, Document doc) Updates a document.
void	updateDocuments(Term delTerm, Collection<Document> docs)

Methods inherited from class java.lang.Object

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

Field Detail

w

public IndexWriter w

Constructor Detail

RandomIndexWriter

public RandomIndexWriter(Random r,
                 Directory dir)
                  throws IOException

create a RandomIndexWriter with a random config: Uses TEST_VERSION_CURRENT and Whitespace+LowercasingAnalyzer

Throws:

IOException

RandomIndexWriter

public RandomIndexWriter(Random r,
                 Directory dir,
                 Analyzer a)
                  throws IOException

create a RandomIndexWriter with a random config: Uses TEST_VERSION_CURRENT

Throws:

IOException

RandomIndexWriter

public RandomIndexWriter(Random r,
                 Directory dir,
                 Version v,
                 Analyzer a)
                  throws IOException

create a RandomIndexWriter with a random config

Throws:

IOException

RandomIndexWriter

public RandomIndexWriter(Random r,
                 Directory dir,
                 IndexWriterConfig c)
                  throws IOException

create a RandomIndexWriter with the provided config

Throws:

IOException

Method Detail

addDocument

public void addDocument(Document doc)
                 throws IOException

Adds a Document.

Throws:

IOException

See Also:

IndexWriter.addDocument(Document)

addDocuments

public void addDocuments(Collection<Document> docs)
                  throws IOException

Throws:

IOException

updateDocuments

public void updateDocuments(Term delTerm,
                   Collection<Document> docs)
                     throws IOException

Throws:

IOException

updateDocument

public void updateDocument(Term t,
                  Document doc)
                    throws IOException

Updates a document.

Throws:

IOException

See Also:

IndexWriter.updateDocument(Term, Document)

addIndexes

public void addIndexes(Directory... dirs)
                throws CorruptIndexException,
                       IOException

Throws:

CorruptIndexException

IOException

addIndexes

public void addIndexes(IndexReader... readers)
                throws CorruptIndexException,
                       IOException

Throws:

CorruptIndexException

IOException

deleteDocuments

public void deleteDocuments(Term term)
                     throws CorruptIndexException,
                            IOException

Throws:

CorruptIndexException

IOException

deleteDocuments

public void deleteDocuments(Query q)
                     throws CorruptIndexException,
                            IOException

Throws:

CorruptIndexException

IOException

commit

public void commit()
            throws CorruptIndexException,
                   IOException

Throws:

CorruptIndexException

IOException

numDocs

public int numDocs()
            throws IOException

Throws:

IOException

maxDoc

public int maxDoc()

deleteAll

public void deleteAll()
               throws IOException

Throws:

IOException

forceMergeDeletes

public void forceMergeDeletes(boolean doWait)
                       throws IOException

Throws:

IOException

forceMergeDeletes

public void forceMergeDeletes()
                       throws IOException

Throws:

IOException

setDoRandomForceMerge

public void setDoRandomForceMerge(boolean v)

setDoRandomForceMergeAssert

public void setDoRandomForceMergeAssert(boolean v)

getReader

public IndexReader getReader()
                      throws IOException

Throws:

IOException

getReader

public IndexReader getReader(boolean applyDeletions)
                      throws IOException

Throws:

IOException

close

public void close()
           throws IOException

Close this writer.

Specified by:

close in interface Closeable

Throws:

IOException

See Also:

IndexWriter.close()

forceMerge

public void forceMerge(int maxSegmentCount)
                throws IOException

Forces a forceMerge.

NOTE: this should be avoided in tests unless absolutely necessary, as it will result in less test coverage.

Throws:

IOException

See Also:

IndexWriter.forceMerge(int)