Open an index with write access.

Open an index with write access.

Open an index with write access.

Adds a document to this index. If the document contains more than {@link #SetMaxFieldLength(int)} terms for a given field, the remainder are discarded.

Adds a document to this index, using the provided analyzer instead of the one specific in the constructor. If the document contains more than {@link #SetMaxFieldLength(int)} terms for a given field, the remainder are discarded.

Throw an IllegalStateException if the index is closed.

Close this index, writing all pending changes to disk.

Close the IndexWriter and open an IndexReader.

Close the IndexReader and open an IndexWriter.

Deletes the document numbered

CopyC#

docNum

.

Deletes all documents containing

CopyC#

term

. This is useful if one uses a document field to hold a unique ID string for the document. Then to delete such a document, one merely constructs a term with the appropriate field and the unique ID string as its text and passes it to this method. Returns the number of documents deleted.

Returns the number of documents currently in this index. If the writer is currently open, this returns {@link IndexWriter#DocCount()}, else {@link IndexReader#NumDocs()}. But, note that {@link IndexWriter#DocCount()} does not take deletions into account, unlike {@link IndexReader#numDocs}.

Determines whether the specified Object is equal to the current Object.

Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection.

Make sure all changes are written to disk.

Serves as a hash function for a particular type.

has this index open (

CopyC#

write.lock

could not be obtained)

has this index open (

CopyC#

write.lock

could not be obtained)

has this index open (

CopyC#

write.lock

could not be obtained)

has this index open (

CopyC#

write.lock

could not be obtained)

Gets the Type of the current instance.

has this index open (

CopyC#

write.lock

could not be obtained)

Initialize an IndexWriter.

Creates a shallow copy of the current Object.

Merges all segments together into a single segment, optimizing an index for search.

If non-null, information about merges and a message when {@link #GetMaxFieldLength()} is reached will be printed to this.

Example: index.setInfoStream(System.err);

Determines the minimal number of documents required before the buffered in-memory documents are merging and a new Segment is created. Since Documents are merged in a {@link Lucene.Net.Store.RAMDirectory}, large value gives faster indexing. At the same time, mergeFactor limits the number of files open in a FSDirectory.

The default value is 10.

The maximum number of terms that will be indexed for a single field in a document. This limits the amount of memory required for indexing, so that collections with very large files will not crash the indexing process by running out of memory.

Note that this effectively truncates large documents, excluding from the index terms that occur further in the document. If you know your source documents are large, be sure to set this value high enough to accommodate the expected size. If you set it to Integer.MAX_VALUE, then the only limit is your memory, but you should anticipate an OutOfMemoryError.

By default, no more than 10,000 terms will be indexed for a field.

Determines how often segment indices are merged by addDocument(). With smaller values, less RAM is used while indexing, and searches on unoptimized indices are faster, but indexing speed is slower. With larger values, more RAM is used during indexing, and while searches on unoptimized indices are slower, indexing is faster. Thus larger values (> 10) are best for batch index creation, and smaller values (< 10) for indices that are interactively maintained.

This must never be less than 2. The default value is 10.

Setting to turn on usage of a compound file. When on, multiple files for each segment are merged into a single file once the segment creation is finished. This is done regardless of what directory is in use.