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

Class H2TreeIndex

java.lang.Object

org.h2.engine.DbObjectBase

org.h2.schema.SchemaObjectBase

org.h2.index.BaseIndex

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

org.apache.ignite.internal.processors.query.h2.database.H2TreeIndex

All Implemented Interfaces:

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

public class H2TreeIndex
extends GridH2IndexBase

H2 Index over BPlusTree.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.ignite.internal.processors.query.h2.opt.GridH2IndexBase

GridH2IndexBase.SegmentKey

Field Summary

Fields

Modifier and Type	Field and Description
static org.h2.index.Cursor	EMPTY_CURSOR Empty cursor.
static int	IGNITE_MAX_INDEX_PAYLOAD_SIZE_DEFAULT Default value for IGNITE_MAX_INDEX_PAYLOAD_SIZE

Fields inherited from class org.apache.ignite.internal.processors.query.h2.opt.GridH2IndexBase

ctx

Fields inherited from class org.h2.index.BaseIndex

columnIds, columns, indexColumns, indexType, isMultiVersion, table

Fields inherited from class org.h2.engine.DbObjectBase

comment, database, trace

Fields inherited from interface org.h2.engine.DbObject

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

Constructor Summary

Constructors

Constructor and Description
H2TreeIndex(GridCacheContext<?,?> cctx, H2RowCache rowCache, GridH2Table tbl, String name, boolean pk, List<org.h2.table.IndexColumn> colsList, int inlineSize, int segmentsCnt)

Method Summary

Modifier and Type	Method and Description
boolean	canGetFirstOrLast()
void	destroy(boolean rmvIndex) Attempts to destroys index and release all the resources.
protected H2Cursor	doFind0(IgniteTree t, org.h2.result.SearchRow first, boolean includeFirst, org.h2.result.SearchRow last, IndexingQueryFilter filter)
org.h2.index.Cursor	find(org.h2.engine.Session ses, org.h2.result.SearchRow lower, org.h2.result.SearchRow upper)
org.h2.index.Cursor	findFirstOrLast(org.h2.engine.Session session, boolean b)
double	getCost(org.h2.engine.Session ses, int[] masks, org.h2.table.TableFilter[] filters, int filter, org.h2.result.SortOrder sortOrder, HashSet<org.h2.table.Column> allColumnsSet)
long	getRowCount(org.h2.engine.Session ses)
long	getRowCountApproximation()
GridH2Row	put(GridH2Row row) Puts row.
boolean	putx(GridH2Row row) Puts row.
void	refreshColumnIds() Re-assign column ids after removal of column(s).
GridH2Row	remove(org.h2.result.SearchRow row) Remove row from index.
boolean	removex(org.h2.result.SearchRow row) Removes row from index.
protected int	segmentsCount()
protected H2Tree	treeForRead(int segment)

Methods inherited from class org.apache.ignite.internal.processors.query.h2.opt.GridH2IndexBase

add, bubbleUp, checkRename, close, createLookupBatch, getDiskSpaceUsed, getDistributedMultiplier, getTable, initDistributedJoinMessaging, needRebuild, remove, remove, removeChildrenAndResources, segmentForPartition, segmentForRow, threadLocalFilter, threadLocalSegment, truncate

Methods inherited from class org.h2.index.BaseIndex

canFindNext, canScan, checkIndexColumnTypes, commit, compareRows, containsNullAndAllowMultipleNull, find, findNext, getColumnIndex, getColumns, getCostRangeIndex, getCreateSQL, getCreateSQLForCopy, getDropSQL, getDuplicateKeyException, getIndexColumns, getIndexType, getPlanSQL, getRow, getType, initBaseIndex, isFirstColumn, isHidden, isRowIdIndex, setSortedInsertMode

Methods inherited from class org.h2.schema.SchemaObjectBase

getSchema, getSQL, initSchemaObjectBase

Methods inherited from class org.h2.engine.DbObjectBase

getChildren, getComment, getDatabase, getId, getModificationId, getName, initDbObjectBase, 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.h2.schema.SchemaObject

getSchema

Methods inherited from interface org.h2.engine.DbObject

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

Field Detail

IGNITE_MAX_INDEX_PAYLOAD_SIZE_DEFAULT

public static final int IGNITE_MAX_INDEX_PAYLOAD_SIZE_DEFAULT

Default value for IGNITE_MAX_INDEX_PAYLOAD_SIZE

See Also:

Constant Field Values

EMPTY_CURSOR

public static final org.h2.index.Cursor EMPTY_CURSOR

Empty cursor.

Constructor Detail

H2TreeIndex

public H2TreeIndex(GridCacheContext<?,?> cctx,
                   @Nullable
                   H2RowCache rowCache,
                   GridH2Table tbl,
                   String name,
                   boolean pk,
                   List<org.h2.table.IndexColumn> colsList,
                   int inlineSize,
                   int segmentsCnt)
            throws IgniteCheckedException

Parameters:

cctx - Cache context.

tbl - Table.

name - Index name.

pk - Primary key.

colsList - Index columns.

inlineSize - Inline size.

Throws:

IgniteCheckedException - If failed.

Method Detail

segmentsCount

protected int segmentsCount()

Specified by:

segmentsCount in class GridH2IndexBase

Returns:

Index segments count.

find

public org.h2.index.Cursor find(org.h2.engine.Session ses,
                                org.h2.result.SearchRow lower,
                                org.h2.result.SearchRow upper)

put

public GridH2Row put(GridH2Row row)

Puts row.

Specified by:

put in class GridH2IndexBase

Parameters:

row - Row.

Returns:

Existing row or null.

putx

public boolean putx(GridH2Row row)

Puts row.

Specified by:

putx in class GridH2IndexBase

Parameters:

row - Row.

Returns:

True if existing row row has been replaced.

remove

public GridH2Row remove(org.h2.result.SearchRow row)

Remove row from index.

Specified by:

remove in class GridH2IndexBase

Parameters:

row - Row.

Returns:

Removed row.

removex

public boolean removex(org.h2.result.SearchRow row)

Removes row from index.

Specified by:

removex in class GridH2IndexBase

Parameters:

row - Row.

Returns:

True if row has been removed.

getCost

public double getCost(org.h2.engine.Session ses,
                      int[] masks,
                      org.h2.table.TableFilter[] filters,
                      int filter,
                      org.h2.result.SortOrder sortOrder,
                      HashSet<org.h2.table.Column> allColumnsSet)

getRowCount

public long getRowCount(org.h2.engine.Session ses)

getRowCountApproximation

public long getRowCountApproximation()

canGetFirstOrLast

public boolean canGetFirstOrLast()

findFirstOrLast

public org.h2.index.Cursor findFirstOrLast(org.h2.engine.Session session,
                                           boolean b)

destroy

public void destroy(boolean rmvIndex)

Attempts to destroys index and release all the resources. We use this method instead of GridH2IndexBase.close(Session) because that method is used by H2 internally.

Overrides:

destroy in class GridH2IndexBase

Parameters:

rmvIndex - Flag remove.

treeForRead

protected H2Tree treeForRead(int segment)

Overrides:

treeForRead in class GridH2IndexBase

Parameters:

segment - Segment Id.

Returns:

Snapshot for requested segment if there is one.

doFind0

protected H2Cursor doFind0(IgniteTree t,
                           @Nullable
                           org.h2.result.SearchRow first,
                           boolean includeFirst,
                           @Nullable
                           org.h2.result.SearchRow last,
                           IndexingQueryFilter filter)

Overrides:

doFind0 in class GridH2IndexBase

Parameters:

t - Tree.

first - Lower bound.

includeFirst - Whether lower bound should be inclusive.

last - Upper bound always inclusive.

filter - Filter.

Returns:

Iterator over rows in given range.

refreshColumnIds

public void refreshColumnIds()

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

Overrides:

refreshColumnIds in class GridH2IndexBase