org.gcube.indexmanagement.common

Interface IndexGenerator

All Known Implementing Classes:

LuceneGenerator

public interface IndexGenerator

Interface for Index Generating Wrapper Classes.

Method Summary

Methods

Modifier and Type	Method and Description
void	abort() Deletes inserted rowsets since last commit()
void	close() Frees any resources used for updating indexes if any.
void	closeIndex() Closes the index committing any uncommitted insertions
void	commit() Commits inserted rowsets
void	createIndex(String indexName, FullTextIndexType indexType, boolean forceCreate) Creates a new index
File	deleteDocuments(String[] documentIDs) Deletes the listed documents both from the local storage and the main index
int	deleteDocumentsLocally(String[] documentIDs) Deletes the listed documents from the local storage
void	deleteIndex() Deletes the entire index with all it's inserted rowsets.
long	getCommittedFileSize() Returns the size of the committed files
long	getIndexFileSize() Shows the current file size of the index
long	getUnCommittedFileSize() Returns the size of the uncommitted files
int	insertRowSet(String rowset) Inserts rowset of supported a supported indexType.
int	mergeDeletionFile(File deletionFile) Deletes the documents from the file from the index
int	mergeIndex(File inputIndex) Merges the named index into the open index
void	openIndex(String indexName) Opens the index for insertion of rowsets
void	setIndexType(FullTextIndexType idxType) Updates the Index' state object

Method Detail

insertRowSet

int insertRowSet(String rowset)
                 throws IndexException

Inserts rowset of supported a supported indexType.

Parameters:

rowset - xml that contain data to insert

Returns:

number of handled documents

Throws:

IndexException - - an error inserting the ROWSET

deleteDocumentsLocally

int deleteDocumentsLocally(String[] documentIDs)
                           throws IndexException

Deletes the listed documents from the local storage

Parameters:

documentIDs - - an array of the IDs of the documents to delete

Returns:

the number of documents deleted

Throws:

IndexException - - an error deleting documents

deleteDocuments

File deleteDocuments(String[] documentIDs)
                     throws IndexException

Deletes the listed documents both from the local storage and the main index

Parameters:

documentIDs - - an array of the IDs of the documents to delete

Returns:

a new deletionFile

Throws:

IndexException - - an error deleting documents

commit

void commit()
            throws IndexException

Commits inserted rowsets

Throws:

IndexException - - an error committing

abort

void abort()
           throws IndexException

Deletes inserted rowsets since last commit()

Throws:

IndexException - - an error aborting

getCommittedFileSize

long getCommittedFileSize()
                          throws IndexException

Returns the size of the committed files

Throws:

IndexException - - an error getting the fileSize

getUnCommittedFileSize

long getUnCommittedFileSize()
                            throws IndexException

Returns the size of the uncommitted files

Throws:

IndexException - - an error getting the fileSize

createIndex

void createIndex(String indexName,
               FullTextIndexType indexType,
               boolean forceCreate)
                 throws IndexException

Creates a new index

Parameters:

indexName - - name of the index

collectionID - - the collectionID of the index to create

indexType - - the IndexType of the index to create

Throws:

IndexException - - an error creating the index to create

deleteIndex

void deleteIndex()
                 throws IndexException

Deletes the entire index with all it's inserted rowsets.

Warning: there is no undelete method.

Throws:

IndexException - - an error deleting documents

openIndex

void openIndex(String indexName)
               throws IndexException

Opens the index for insertion of rowsets

Parameters:

indexName - name of the index

Throws:

IndexException - - an error opening the index

setIndexType

void setIndexType(FullTextIndexType idxType)
                  throws IndexException

Updates the Index' state object

Throws:

IndexException - - an error setting the indexType

getIndexFileSize

long getIndexFileSize()
                      throws IndexException

Shows the current file size of the index

Throws:

IndexException - - an error deleting documents

mergeIndex

int mergeIndex(File inputIndex)
               throws IndexException

Merges the named index into the open index

Parameters:

inputIndexName - name of the input index

Throws:

IndexException - - an merging the index

mergeDeletionFile

int mergeDeletionFile(File deletionFile)
                      throws IndexException

Deletes the documents from the file from the index

Parameters:

deletionFile - a file identifying the documents to delete

Throws:

IndexException - - an error merging the deletion file

closeIndex

void closeIndex()
                throws IndexException

Closes the index committing any uncommitted insertions

Throws:

IndexException - - an error closing the Index

close

void close()
           throws IndexException

Frees any resources used for updating indexes if any.

Throws:

IndexException - - an error closing the IndexGenerator