org.apache.ignite.internal.processors.query.h2.opt

Class GridH2IndexBase

java.lang.Object

org.gridgain.internal.h2.engine.DbObjectBase

org.gridgain.internal.h2.schema.SchemaObjectBase

org.gridgain.internal.h2.index.BaseIndex

org.apache.ignite.internal.processors.query.h2.opt.H2IndexCostedBase

org.apache.ignite.internal.processors.query.h2.opt.GridH2IndexBase

All Implemented Interfaces:

org.gridgain.internal.h2.engine.DbObject, org.gridgain.internal.h2.index.Index, org.gridgain.internal.h2.schema.SchemaObject

Direct Known Subclasses:

H2PkHashIndex, H2TreeIndexBase

public abstract class GridH2IndexBase
extends H2IndexCostedBase

Index base.

Field Summary

Fields inherited from class org.gridgain.internal.h2.index.BaseIndex

columnIds, columns, indexColumns, indexType, table

Fields inherited from class org.gridgain.internal.h2.engine.DbObjectBase

comment, database, trace

Fields inherited from interface org.gridgain.internal.h2.engine.DbObject

AGGREGATE, COMMENT, CONSTANT, CONSTRAINT, DOMAIN, FUNCTION_ALIAS, INDEX, RIGHT, ROLE, SCHEMA, SEQUENCE, SETTING, SYNONYM, TABLE_OR_VIEW, TRIGGER, USER

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	GridH2IndexBase(GridH2Table tbl, String name, org.gridgain.internal.h2.table.IndexColumn[] cols, org.gridgain.internal.h2.index.IndexType type) Constructor.

Method Summary

Modifier and Type	Method and Description
void	add(org.gridgain.internal.h2.engine.Session ses, org.gridgain.internal.h2.result.Row row)
static int	calculateSegment(int segmentCnt, int part)
void	checkRename()
void	close(org.gridgain.internal.h2.engine.Session ses)
static @NotNull org.gridgain.internal.h2.table.IndexColumn[]	columnsArray(GridH2Table tbl, List<org.gridgain.internal.h2.table.IndexColumn> colsList)
void	destroy(boolean rmv) Attempts to destroys index and release all the resources.
long	getDiskSpaceUsed()
int	getDistributedMultiplier(org.gridgain.internal.h2.engine.Session ses, org.gridgain.internal.h2.table.TableFilter[] filters, int filter)
long	getRowCountApproximation(org.gridgain.internal.h2.engine.Session ses)
GridH2Table	getTable()
boolean	needRebuild()
abstract H2CacheRow	put(H2CacheRow row) Puts row.
abstract boolean	putx(H2CacheRow row) Puts row.
protected QueryContextRegistry	queryContextRegistry()
void	refreshColumnIds() Re-assign column ids after removal of column(s).
void	remove(org.gridgain.internal.h2.engine.Session ses)
void	remove(org.gridgain.internal.h2.engine.Session ses, org.gridgain.internal.h2.result.Row row)
void	removeChildrenAndResources(org.gridgain.internal.h2.engine.Session session)
abstract boolean	removex(org.gridgain.internal.h2.result.SearchRow row) Removes row from index.
protected GridH2RowDescriptor	rowDescriptor()
protected int	segment(QueryContext qctx)
int	segmentForPartition(int part)
protected int	segmentForRow(GridCacheContext ctx, org.gridgain.internal.h2.result.SearchRow row)
abstract int	segmentsCount()
abstract long	totalRowCount(IndexingQueryCacheFilter partsFilter)
void	truncate(org.gridgain.internal.h2.engine.Session ses)

Methods inherited from class org.apache.ignite.internal.processors.query.h2.opt.H2IndexCostedBase

costRangeIndex, getCostRangeIndex_8_7_12

Methods inherited from class org.gridgain.internal.h2.index.BaseIndex

canFindNext, canScan, checkIndexColumnTypes, compareRows, createLookupBatch, find, findNext, getColumnIndex, getColumns, getCostRangeIndex, getCreateSQL, getCreateSQLForCopy, getDropSQL, getDuplicateKeyException, getIndexColumns, getIndexType, getPlanSQL, getRow, getType, isFindUsingFullTableScan, isFirstColumn, isHidden, isRowIdIndex, mayHaveNullDuplicates, setSortedInsertMode, update

Methods inherited from class org.gridgain.internal.h2.schema.SchemaObjectBase

getSchema, getSQL, getSQL

Methods inherited from class org.gridgain.internal.h2.engine.DbObjectBase

getChildren, getComment, getDatabase, getId, getModificationId, getName, invalidate, isTemporary, isValid, rename, setComment, setModified, setObjectName, setTemporary, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.gridgain.internal.h2.index.Index

canGetFirstOrLast, find, findFirstOrLast, getCost, getRowCount

Methods inherited from interface org.gridgain.internal.h2.schema.SchemaObject

getSchema

Methods inherited from interface org.gridgain.internal.h2.engine.DbObject

getChildren, getComment, getDatabase, getId, getName, getSQL, getSQL, isTemporary, rename, setComment, setTemporary

Constructor Detail

GridH2IndexBase

protected GridH2IndexBase(GridH2Table tbl,
                          String name,
                          org.gridgain.internal.h2.table.IndexColumn[] cols,
                          org.gridgain.internal.h2.index.IndexType type)

Constructor.

Parameters:

tbl - Table.

name - Index name.

cols - Indexed columns.

type - Index type.

Method Detail

close

public final void close(org.gridgain.internal.h2.engine.Session ses)

destroy

public void destroy(boolean rmv)

Attempts to destroys index and release all the resources. We use this method instead of close(Session) because that method is used by H2 internally.

Parameters:

rmv - Flag remove.

segment

protected int segment(QueryContext qctx)

Parameters:

qctx - Query context.

Returns:

Index segment ID for current query context.

put

public abstract H2CacheRow put(H2CacheRow row)

Puts row.

Parameters:

row - Row.

Returns:

Existing row or null.

putx

public abstract boolean putx(H2CacheRow row)

Puts row.

Parameters:

row - Row.

Returns:

True if existing row row has been replaced.

removex

public abstract boolean removex(org.gridgain.internal.h2.result.SearchRow row)

Removes row from index.

Parameters:

row - Row.

Returns:

True if row has been removed.

getDistributedMultiplier

public final int getDistributedMultiplier(org.gridgain.internal.h2.engine.Session ses,
                                          org.gridgain.internal.h2.table.TableFilter[] filters,
                                          int filter)

Parameters:

ses - Session.

filters - All joined table filters.

filter - Current filter.

Returns:

Multiplier.

getTable

public GridH2Table getTable()

Specified by:

getTable in interface org.gridgain.internal.h2.index.Index

Overrides:

getTable in class org.gridgain.internal.h2.index.BaseIndex

getDiskSpaceUsed

public long getDiskSpaceUsed()

checkRename

public void checkRename()

Specified by:

checkRename in interface org.gridgain.internal.h2.engine.DbObject

Specified by:

checkRename in class org.gridgain.internal.h2.engine.DbObjectBase

add

public void add(org.gridgain.internal.h2.engine.Session ses,
                org.gridgain.internal.h2.result.Row row)

remove

public void remove(org.gridgain.internal.h2.engine.Session ses,
                   org.gridgain.internal.h2.result.Row row)

remove

public void remove(org.gridgain.internal.h2.engine.Session ses)

truncate

public void truncate(org.gridgain.internal.h2.engine.Session ses)

needRebuild

public boolean needRebuild()

removeChildrenAndResources

public void removeChildrenAndResources(org.gridgain.internal.h2.engine.Session session)

Specified by:

removeChildrenAndResources in interface org.gridgain.internal.h2.engine.DbObject

Overrides:

removeChildrenAndResources in class org.gridgain.internal.h2.index.BaseIndex

segmentsCount

public abstract int segmentsCount()

Returns:

Index segments count.

segmentForPartition

public int segmentForPartition(int part)

Parameters:

part - Partition idx.

Returns:

Segment ID for given key.

calculateSegment

public static int calculateSegment(int segmentCnt,
                                   int part)

Parameters:

segmentCnt - Сount of segments in cache.

part - Partition.

Returns:

Segment ID for given segment count and partition.

segmentForRow

protected int segmentForRow(GridCacheContext ctx,
                            org.gridgain.internal.h2.result.SearchRow row)

Parameters:

row - Table row.

Returns:

Segment ID for given row.

refreshColumnIds

public void refreshColumnIds()

Re-assign column ids after removal of column(s).

rowDescriptor

protected GridH2RowDescriptor rowDescriptor()

Returns:

Row descriptor.

queryContextRegistry

protected QueryContextRegistry queryContextRegistry()

Returns:

Query context registry.

columnsArray

@NotNull
public static @NotNull org.gridgain.internal.h2.table.IndexColumn[] columnsArray(GridH2Table tbl,
                                                                                          List<org.gridgain.internal.h2.table.IndexColumn> colsList)

Parameters:

tbl - Table.

colsList - Columns list.

Returns:

Index column array.

getRowCountApproximation

public long getRowCountApproximation(org.gridgain.internal.h2.engine.Session ses)

totalRowCount

public abstract long totalRowCount(IndexingQueryCacheFilter partsFilter)

Parameters:

partsFilter - Partitions filter.

Returns:

Total row count in the current index for filtered partitions.