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

Interface GridH2RowDescriptor

All Known Implementing Classes:

H2RowDescriptor

public interface GridH2RowDescriptor

Row descriptor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	checkKeyIndexCondition(int[] masks, int mask) Checks if provided index condition is allowed for key column or key alias column.
Object	columnValue(Object key, Object val, int col) Gets column value by column index.
GridCacheContext<?,?>	context() Gets cache context for this row descriptor.
GridH2Row	createRow(KeyCacheObject key, int part, CacheObject val, GridCacheVersion ver, long expirationTime) Creates new row.
int	fieldsCount()
int	fieldType(int col) Gets value type for column index.
int	getAlternativeColumnId(int colId) Gets alternative column id that may substitute the given column id.
IgniteH2Indexing	indexing() Gets indexing.
void	initValueCache(org.h2.value.Value[] valCache, org.h2.value.Value key, org.h2.value.Value value, org.h2.value.Value version) Initializes value cache with key, val and version.
boolean	isColumnKeyProperty(int col) Determine whether a column corresponds to a property of key or to one of value.
boolean	isKeyColumn(int colId) Checks if provided column id matches key column or key alias.
boolean	isKeyValueOrVersionColumn(int colId) Checks if provided column id matches key, key alias, value, value alias or version column.
boolean	isValueColumn(int colId) Checks if provided column id matches value column or alias.
org.h2.result.SearchRow	prepareProxyIndexRow(org.h2.result.SearchRow row) Clones provided row and copies values of alias key and val columns into respective key and val positions.
void	setColumnValue(Object key, Object val, Object colVal, int col) Gets column value by column index.
GridQueryTypeDescriptor	type() Gets type descriptor.
int	valueType()
org.h2.value.Value	wrap(Object o, int type) Wraps object to respective Value.

Method Detail

indexing

IgniteH2Indexing indexing()

Gets indexing.

Returns:

indexing.

type

GridQueryTypeDescriptor type()

Gets type descriptor.

Returns:

Type descriptor.

context

GridCacheContext<?,?> context()

Gets cache context for this row descriptor.

Returns:

Cache context.

createRow

GridH2Row createRow(KeyCacheObject key,
                  int part,
                  @Nullable
                  CacheObject val,
                  GridCacheVersion ver,
                  long expirationTime)
                    throws IgniteCheckedException

Creates new row.

Parameters:

key - Key.

val - Value.

ver - Version.

expirationTime - Expiration time in millis.

Returns:

Row.

Throws:

IgniteCheckedException - If failed.

valueType

int valueType()

Returns:

Value type.

fieldsCount

int fieldsCount()

Returns:

Total fields count.

fieldType

int fieldType(int col)

Gets value type for column index.

Parameters:

col - Column index.

Returns:

Value type.

columnValue

Object columnValue(Object key,
                 Object val,
                 int col)

Gets column value by column index.

Parameters:

key - Key.

val - Value.

col - Column index.

Returns:

Column value.

setColumnValue

void setColumnValue(Object key,
                  Object val,
                  Object colVal,
                  int col)

Gets column value by column index.

Parameters:

key - Key.

val - Value.

colVal - Value to set to column.

col - Column index.

isColumnKeyProperty

boolean isColumnKeyProperty(int col)

Determine whether a column corresponds to a property of key or to one of value.

Parameters:

col - Column index.

Returns:

true if given column corresponds to a key property, false otherwise

wrap

org.h2.value.Value wrap(Object o,
                      int type)
                        throws IgniteCheckedException

Wraps object to respective Value.

Parameters:

o - Object.

type - Value type.

Returns:

Value.

Throws:

IgniteCheckedException - If failed.

isKeyColumn

boolean isKeyColumn(int colId)

Checks if provided column id matches key column or key alias.

Parameters:

colId - Column id.

Returns:

Result.

isValueColumn

boolean isValueColumn(int colId)

Checks if provided column id matches value column or alias.

Parameters:

colId - Column id.

Returns:

Result.

isKeyValueOrVersionColumn

boolean isKeyValueOrVersionColumn(int colId)

Checks if provided column id matches key, key alias, value, value alias or version column.

Parameters:

colId - Column id.

Returns:

Result.

checkKeyIndexCondition

boolean checkKeyIndexCondition(int[] masks,
                             int mask)

Checks if provided index condition is allowed for key column or key alias column.

Parameters:

masks - Array containing Index Condition masks for each column.

mask - Index Condition to check.

Returns:

Result.

initValueCache

void initValueCache(org.h2.value.Value[] valCache,
                  org.h2.value.Value key,
                  org.h2.value.Value value,
                  org.h2.value.Value version)

Initializes value cache with key, val and version.

Parameters:

valCache - Value cache.

key - Key.

value - Value.

version - Version.

prepareProxyIndexRow

org.h2.result.SearchRow prepareProxyIndexRow(org.h2.result.SearchRow row)

Clones provided row and copies values of alias key and val columns into respective key and val positions.

Parameters:

row - Source row.

Returns:

Result.

getAlternativeColumnId

int getAlternativeColumnId(int colId)

Gets alternative column id that may substitute the given column id. For alias column returns original one. For original column returns its alias. Otherwise, returns the given column id.

Parameters:

colId - Column id.

Returns:

Result.