org.gridgain.grid.spi.indexing.h2.opt

Class GridH2IndexBase

java.lang.Object

org.h2.engine.DbObjectBase

org.h2.schema.SchemaObjectBase

org.h2.index.BaseIndex

org.gridgain.grid.spi.indexing.h2.opt.GridH2IndexBase

All Implemented Interfaces:

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

Direct Known Subclasses:

GridH2SpatialIndex, GridH2TreeIndex

public abstract class GridH2IndexBase
extends org.h2.index.BaseIndex

Index base.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	GridH2IndexBase.FilteringIterator Iterator which filters by expiration time and predicate.

Field Summary

Fields

Modifier and Type	Field and Description
protected static ThreadLocal<org.gridgain.grid.spi.indexing.GridIndexingQueryFilter<?,?>[]>	filters
protected int	keyCol
protected int	valCol

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
GridH2IndexBase(int keyCol, int valCol)

Method Summary

Methods

Modifier and Type	Method and Description
void	add(org.h2.engine.Session ses, org.h2.result.Row row)
void	checkRename()
protected Iterator<GridH2Row>	filter(Iterator<GridH2Row> iter) Filters rows from expired ones and using predicate.
long	getDiskSpaceUsed()
boolean	needRebuild()
abstract GridH2Row	put(GridH2Row row, boolean ifAbsent) Put row if absent.
GridH2IndexBase	rebuild(org.gridgain.grid.util.offheap.unsafe.GridUnsafeMemory memory) If the index supports rebuilding it has to creates its own copy.
void	releaseSnapshot() Releases snapshot for current thread.
abstract GridH2Row	remove(org.h2.result.SearchRow row) Remove row from index.
void	remove(org.h2.engine.Session ses)
void	remove(org.h2.engine.Session ses, org.h2.result.Row row)
static void	setFiltersForThread(org.gridgain.grid.spi.indexing.GridIndexingQueryFilter<?,?>[] fs) Sets key filters for current thread.
Object	takeSnapshot(Object s) Takes or sets existing snapshot to be used in current thread.
void	truncate(org.h2.engine.Session ses)

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, getTable, getType, initBaseIndex, isHidden, isRowIdIndex, removeChildrenAndResources, 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, 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.index.Index

canGetFirstOrLast, close, find, findFirstOrLast, getCost, getRowCount, getRowCountApproximation

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

filters

protected static final ThreadLocal<org.gridgain.grid.spi.indexing.GridIndexingQueryFilter<?,?>[]> filters

keyCol

protected final int keyCol

valCol

protected final int valCol

Constructor Detail

GridH2IndexBase

public GridH2IndexBase(int keyCol,
               int valCol)

Parameters:

keyCol - Key column.

valCol - Value column.

Method Detail

setFiltersForThread

public static void setFiltersForThread(org.gridgain.grid.spi.indexing.GridIndexingQueryFilter<?,?>[] fs)

Sets key filters for current thread.

Parameters:

fs - Filters.

rebuild

public GridH2IndexBase rebuild(org.gridgain.grid.util.offheap.unsafe.GridUnsafeMemory memory)
                        throws InterruptedException

If the index supports rebuilding it has to creates its own copy.

Parameters:

memory - Memory.

Returns:

Rebuilt copy.

Throws:

InterruptedException - If interrupted.

put

public abstract GridH2Row put(GridH2Row row,
            boolean ifAbsent)

Put row if absent.

Parameters:

row - Row.

ifAbsent - Put only if such a row does not exist.

Returns:

Existing row or null.

remove

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

Remove row from index.

Parameters:

row - Row.

Returns:

Removed row.

takeSnapshot

public Object takeSnapshot(@Nullable
                  Object s)

Takes or sets existing snapshot to be used in current thread.

Parameters:

s - Optional existing snapshot to use.

Returns:

Snapshot.

releaseSnapshot

public void releaseSnapshot()

Releases snapshot for current thread.

filter

protected Iterator<GridH2Row> filter(Iterator<GridH2Row> iter)

Filters rows from expired ones and using predicate.

Parameters:

iter - Iterator over rows.

Returns:

Filtered iterator.

getDiskSpaceUsed

public long getDiskSpaceUsed()

checkRename

public void checkRename()

Specified by:

checkRename in interface org.h2.engine.DbObject

Specified by:

checkRename in class org.h2.engine.DbObjectBase

add

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

remove

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

remove

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

truncate

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

needRebuild

public boolean needRebuild()