Package com.arcadedb.index.lsm

Class LSMTreeIndexMutable

java.lang.Object

com.arcadedb.engine.PaginatedComponent

com.arcadedb.index.lsm.LSMTreeIndexAbstract

com.arcadedb.index.lsm.LSMTreeIndexMutable

public class LSMTreeIndexMutable
extends LSMTreeIndexAbstract

Nested Class Summary

Nested classes/interfaces inherited from class com.arcadedb.index.lsm.LSMTreeIndexAbstract

LSMTreeIndexAbstract.COMPACTING_STATUS, LSMTreeIndexAbstract.LookupResult, LSMTreeIndexAbstract.NULL_STRATEGY

Field Summary

Fields

Modifier and Type	Field	Description
static int	CURRENT_VERSION
static String	NOTUNIQUE_INDEX_EXT
static String	UNIQUE_INDEX_EXT

Fields inherited from class com.arcadedb.index.lsm.LSMTreeIndexAbstract

binaryKeyTypes, comparator, DEF_PAGE_SIZE, HIGHER, keyTypes, LOWER, mainIndex, nullStrategy, REMOVED_ENTRY_RID, serializer, TEMP_EXT, unique, valueType

Fields inherited from class com.arcadedb.engine.PaginatedComponent

database, file, id, name, pageCount, pageSize, version

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	LSMTreeIndexMutable(LSMTreeIndex mainIndex, DatabaseInternal database, String name, boolean unique, String filePath, byte[] keyTypes, int pageSize, int version, LSMTreeIndexCompacted subIndex)	Called at cloning time.
protected	LSMTreeIndexMutable(LSMTreeIndex mainIndex, DatabaseInternal database, String name, boolean unique, String filePath, int id, PaginatedFile.MODE mode, int pageSize, int version)	Called at load time (1st page only).
protected	LSMTreeIndexMutable(LSMTreeIndex mainIndex, DatabaseInternal database, String name, boolean unique, String filePath, PaginatedFile.MODE mode, Type[] keyTypes, int pageSize, LSMTreeIndexAbstract.NULL_STRATEGY nullStrategy)	Called at creation time.

Method Summary

Modifier and Type	Method	Description
void	close()
protected LSMTreeIndexAbstract.LookupResult	compareKey(Binary currentPageBuffer, int startIndexArray, Object[] convertedKeys, int mid, int count, int purpose)
LSMTreeIndexCompacted	createNewForCompaction()
protected MutablePage	createNewPage()
IndexCursor	get(Object[] keys, int limit)
protected RID	getRemovedRID(Identifiable record)
Map<String,Long>	getStats()
LSMTreeIndexCompacted	getSubIndex()
protected void	internalPut(Object[] keys, RID[] rids)
protected void	internalRemove(Object[] keys, Identifiable rid)
IndexCursor	iterator(boolean ascendingOrder, Object[] fromKeys, boolean inclusive)
LSMTreeIndexUnderlyingPageCursor	newPageIterator(int pageId, int currentEntryInPage, boolean ascendingOrder)
void	onAfterCommit()
void	onAfterLoad()
void	put(Object[] keys, RID[] rids)
IndexCursor	range(boolean ascending, Object[] fromKeys, boolean beginKeysInclusive, Object[] toKeys, boolean endKeysInclusive)
IndexCursor	range(Object[] fromKeys, boolean beginKeysInclusive, Object[] toKeys, boolean endKeysInclusive)	Auto determine if it's ascending or descending by checking the keys.
void	remove(Object[] keys)
void	remove(Object[] keys, Identifiable rid)
void	removeTempSuffix()
void	setCurrentMutablePages(int currentMutablePages)

Methods inherited from class com.arcadedb.index.lsm.LSMTreeIndexAbstract

checkForNulls, compareKey, compareKeys, convertKeys, drop, getCount, getFileId, getHeaderSize, getKeyInPagePosition, getKeyTypes, getMainComponent, getNullStrategy, getOriginalRID, getPageBound, getPaginatedComponent, getSerializedKeySize, getValuesFreePosition, isDeletedEntry, isKeyNull, isMutable, isUnique, lookupInPage, lookupInPageAndAddInResultset, readEntryValues, setCount, setMutable, setValuesFreePosition, toString, writeEntry, writeEntry

Methods inherited from class com.arcadedb.engine.PaginatedComponent

getDatabase, getId, getName, getOSFile, getPageSize, getTotalPages, getVersion, setPageCount

Methods inherited from class java.lang.Object

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

Field Detail

CURRENT_VERSION

public static final int CURRENT_VERSION

See Also:

Constant Field Values

UNIQUE_INDEX_EXT

public static final String UNIQUE_INDEX_EXT

See Also:

Constant Field Values

NOTUNIQUE_INDEX_EXT

public static final String NOTUNIQUE_INDEX_EXT

See Also:

Constant Field Values

Constructor Detail

LSMTreeIndexMutable

protected LSMTreeIndexMutable(LSMTreeIndex mainIndex,
                              DatabaseInternal database,
                              String name,
                              boolean unique,
                              String filePath,
                              PaginatedFile.MODE mode,
                              Type[] keyTypes,
                              int pageSize,
                              LSMTreeIndexAbstract.NULL_STRATEGY nullStrategy)
                       throws IOException

Called at creation time.

Throws:

IOException

LSMTreeIndexMutable

protected LSMTreeIndexMutable(LSMTreeIndex mainIndex,
                              DatabaseInternal database,
                              String name,
                              boolean unique,
                              String filePath,
                              byte[] keyTypes,
                              int pageSize,
                              int version,
                              LSMTreeIndexCompacted subIndex)
                       throws IOException

Called at cloning time.

Throws:

IOException

LSMTreeIndexMutable

protected LSMTreeIndexMutable(LSMTreeIndex mainIndex,
                              DatabaseInternal database,
                              String name,
                              boolean unique,
                              String filePath,
                              int id,
                              PaginatedFile.MODE mode,
                              int pageSize,
                              int version)
                       throws IOException

Called at load time (1st page only).

Throws:

IOException

Method Detail

close

public void close()

Overrides:

close in class PaginatedComponent

onAfterLoad

public void onAfterLoad()

Overrides:

onAfterLoad in class PaginatedComponent

onAfterCommit

public void onAfterCommit()

Overrides:

onAfterCommit in class PaginatedComponent

put

public void put(Object[] keys,
                RID[] rids)

remove

public void remove(Object[] keys)

remove

public void remove(Object[] keys,
                   Identifiable rid)

createNewForCompaction

public LSMTreeIndexCompacted createNewForCompaction()
                                             throws IOException

Throws:

IOException

iterator

public IndexCursor iterator(boolean ascendingOrder,
                            Object[] fromKeys,
                            boolean inclusive)
                     throws IOException

Throws:

IOException

range

public IndexCursor range(Object[] fromKeys,
                         boolean beginKeysInclusive,
                         Object[] toKeys,
                         boolean endKeysInclusive)
                  throws IOException

Auto determine if it's ascending or descending by checking the keys. In case of partial match index, pass the ascending parameter.

Throws:

IOException

range

public IndexCursor range(boolean ascending,
                         Object[] fromKeys,
                         boolean beginKeysInclusive,
                         Object[] toKeys,
                         boolean endKeysInclusive)
                  throws IOException

Throws:

IOException

newPageIterator

public LSMTreeIndexUnderlyingPageCursor newPageIterator(int pageId,
                                                        int currentEntryInPage,
                                                        boolean ascendingOrder)
                                                 throws IOException

Throws:

IOException

getSubIndex

public LSMTreeIndexCompacted getSubIndex()

get

public IndexCursor get(Object[] keys,
                       int limit)
                throws IOException

Throws:

IOException

getStats

public Map<String,Long> getStats()

Overrides:

getStats in class LSMTreeIndexAbstract

removeTempSuffix

public void removeTempSuffix()

Overrides:

removeTempSuffix in class LSMTreeIndexAbstract

compareKey

protected LSMTreeIndexAbstract.LookupResult compareKey(Binary currentPageBuffer,
                                                       int startIndexArray,
                                                       Object[] convertedKeys,
                                                       int mid,
                                                       int count,
                                                       int purpose)

Specified by:

compareKey in class LSMTreeIndexAbstract

purpose - 0 = exists, 1 = retrieve, 2 = ascending iterator, 3 = descending iterator

setCurrentMutablePages

public void setCurrentMutablePages(int currentMutablePages)

createNewPage

protected MutablePage createNewPage()
                             throws IOException

Throws:

IOException

internalPut

protected void internalPut(Object[] keys,
                           RID[] rids)

internalRemove

protected void internalRemove(Object[] keys,
                              Identifiable rid)

getRemovedRID

protected RID getRemovedRID(Identifiable record)