Nested and Inner Type Summary

Modifier and Type	Class and Description
private static class	TableFilter.MapColumnsVisitor A visitor that maps columns.
public static interface	TableFilter.TableFilterVisitor A visitor for table filters.

Field Summary

Modifier and Type	Field and Description
private static final int	AFTER_LAST
private String	alias
private static final int	BEFORE_FIRST
private LinkedHashMap<Column, Column>	commonJoinColumns Map of common join columns, used for NATURAL joins and USING clause of other joins.
private TableFilter	commonJoinColumnsFilter
private ArrayList<Column>	commonJoinColumnsToExclude
private Row	current
private SearchRow	currentSearchRow
private final IndexCursor	cursor The filter used to walk through the index.
private LinkedHashMap<Column, String>	derivedColumnMap Map of derived column names.
private boolean	evaluatable
private Expression	filterCondition Additional conditions that can't be used for index lookup, but for row filter for this table (ID=ID, NAME LIKE '%X%')
private static final int	FOUND
private boolean	foundOne
private Expression	fullCondition
private final int	hashCode
private Index	index
private final ArrayList<IndexCondition>	indexConditions The index conditions used for direct index lookup (start or end).
private final IndexHints	indexHints
private static final TableFilter.TableFilterVisitor	JOI_VISITOR A visitor that sets joinOuterIndirect to true.
private TableFilter	join The joined table (if there is one).
private Expression	joinCondition The complete join condition.
private boolean	joinOuter Whether this is an outer join.
protected boolean	joinOuterIndirect Whether this is a direct or indirect (nested) outer join
private int[]	masks
private TableFilter	nestedJoin The nested joined table (if there is one).
private static final int	NULL_ROW
public static final Comparator<TableFilter>	ORDER_IN_FROM_COMPARATOR Comparator that uses order in FROM clause as a sort key.
private final int	orderInFrom
private int	scanCount
private final Select	select
private SessionLocal	session
private int	state
private final Table	table
private boolean	used Indicates that this filter is used in the plan.

Constructor Summary

Access	Constructor and Description
public	TableFilter(SessionLocal the session session, Table the table from where to read data table, String the alias name alias, boolean true if rights are already checked rightsChecked, Select the select statement select, int original order number (index) of this table filter in orderInFrom, IndexHints the index hints to be used by the query planner indexHints) Create a new table filter object.

Method Summary

Modifier and Type	Method and Description
public void	addCommonJoinColumns(Column the column on the left side leftColumn, Column the column to use instead, may be the same as column on the left side replacementColumn, TableFilter the table filter for replacement columns replacementFilter) Add a column to the common join column list for a left table filter.
public void	addCommonJoinColumnToExclude(Column the column to exclude columnToExclude) Add an excluded column to the common join column list.
public void	addFilter(Expression the condition on) Add the join condition.
public void	addFilterCondition(Expression the condition condition, boolean if this is in fact a join condition isJoin) Add a filter condition.
public void	addIndexCondition(IndexCondition the index condition condition) Add an index condition.
public void	addJoin(TableFilter the joined table filter filter, boolean if this is an outer join outer, Expression the join condition on) Add a joined table.
private void	checkTimeout()
public void	createIndexConditions() Create the index conditions for this filter if needed.
public Column	findColumn(String the column name, must be a derived name if this column resolver has a derived column list name) Implements org.h2.table.ColumnResolver.findColumn. Get the column with the specified name.
public Row	Returns: the current row, or null get() Get the current row.
public PlanItem	Returns: the best plan item getBestPlanItem(SessionLocal the session s, TableFilter[] all joined table filters filters, int the current table filter index filter, AllColumnsForPlan the set of all columns allColumnsSet) Get the best plan item (index, cost) to use for the current join order.
public Column	Returns: the column getColumn(String the column name columnName, boolean if `true` return `null` if column does not exist ifExists) Get the column with the given name.
public String	getColumnName(Column column column) Overrides default org.h2.table.ColumnResolver.getColumnName. Get the name of the specified column.
public Column[]	getColumns() Implements org.h2.table.ColumnResolver.getColumns. Get the column list.
public LinkedHashMap<Column, Column>	Returns: common join columns map, or `null` getCommonJoinColumns() Returns common join columns map.
public TableFilter	Returns: common join columns table filter, or `null` getCommonJoinColumnsFilter() Returns common join columns table filter.
private Value	getDelegatedValue(Column column)
public Expression	getFilterCondition()
public Index	getIndex()
public ArrayList<IndexCondition>	getIndexConditions()
public IndexCursor	getIndexCursor()
public IndexHints	getIndexHints()
public TableFilter	getJoin()
public Expression	getJoinCondition()
public int[]	getMasks()
public TableFilter	getNestedJoin()
public int	Returns: the index (0, 1, 2,...) getOrderInFrom() Get the order number (index) of this table filter in the "from" clause of the query.
public StringBuilder	Returns: the specified builder getPlanSQL(StringBuilder string builder to append to builder, boolean if this is a joined table isJoin, int formatting flags sqlFlags) Get the query execution plan text to use for this table filter and append it to the specified builder.
public Column	getRowIdColumn() Overrides default org.h2.table.ColumnResolver.getRowIdColumn. Get the row id pseudo column, if there is one.
public String	getSchemaName() Overrides default org.h2.table.ColumnResolver.getSchemaName. Get the schema name or null.
public Select	getSelect() Overrides default org.h2.table.ColumnResolver.getSelect. Get the select statement.
public SessionLocal	getSession()
public Column[]	Returns: the system columns getSystemColumns() Overrides default org.h2.table.ColumnResolver.getSystemColumns. Get the system columns that this table understands.
public Table	getTable()
public String	Returns: the alias name getTableAlias() Overrides default org.h2.table.ColumnResolver.getTableAlias. Get the table alias name.
public TableFilter	getTableFilter() Overrides default org.h2.table.ColumnResolver.getTableFilter. Get the table filter.
public Value	getValue(Column the column column) Implements org.h2.table.ColumnResolver.getValue. Get the value for the given column.
public boolean	hasDerivedColumnList() Overrides default org.h2.table.ColumnResolver.hasDerivedColumnList. Returns whether this column resolver has a derived column list.
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for this object.
public boolean	Returns: whether there are IN(...) comparisons hasInComparisons() Are there any index conditions that involve IN(...).
public boolean	Returns: true if this is an excluded common join column isCommonJoinColumnToExclude(Column the column to check c) Check if the given column is an excluded common join column.
public boolean	isEvaluatable()
public boolean	Returns: true if it is isJoinOuter() Whether this is an outer joined table.
public boolean	Returns: true if it is isJoinOuterIndirect() Whether this is indirectly an outer joined table (nested within an inner join).
public boolean	Returns: whether this is a table filter with implicit DUAL table isNoFromClauseFilter() Returns whether this is a table filter with implicit DUAL table for a SELECT without a FROM clause.
public boolean	isNullRow()
pack-priv boolean	Returns: true if yes isOk(Expression the condition (null for no condition) condition) Whether the current value of the condition is true, or there is no condition.
public boolean	isUsed()
public void	lock(SessionLocal the session s) Lock the table.
public void	mapColumns(ColumnResolver the resolver resolver, int the subquery level (0 is the top level query, 1 is the first subquery level) level, boolean whether this method was called from the outer query outer) Map the columns to the given column resolver.
public boolean	Returns: true if there are next() Check if there are more rows to read.
pack-priv void	optimizeFullCondition() Optimize the full condition.
public void	prepare() Prepare reading rows.
public void	removeFilterCondition() Remove the filter condition.
public void	removeJoin() Remove the joined table
public void	removeJoinCondition() Remove the join condition.
pack-priv void	removeUnusableIndexConditions() Remove all index conditions that are not used by the current index.
public void	reset() Reset to the current position.
public void	set(Row the current row current) Set the current row.
public void	setAlias(String alias)
public void	setDerivedColumns(ArrayList<String> names of derived columns derivedColumnNames) Set derived column list.
public void	setEvaluatable(TableFilter the table filter filter, boolean the new flag b) Update the filter and join conditions of this and all joined tables with the information that the given table filter and all nested filter can now return rows or not.
public void	setEvaluatable(boolean evaluatable)
public void	setFullCondition(Expression condition)
public void	setIndex(Index index, boolean reverse)
public void	setNestedJoin(TableFilter the joined table filter filter) Set a nested joined table.
protected void	setNullRow() Set the state of this and all nested tables to the NULL row.
public void	setPlanItem(PlanItem the plan item item) Set what plan item (index, cost, masks) to use.
private void	setScanIndexes() Set all missing indexes to scan indexes recursively.
public void	setUsed(boolean used)
public void	startQuery(SessionLocal the session s) Start the query.
public String	toString() Overrides java.lang.Object.toString. Returns a string representation of the object.
public void	visit(TableFilter.TableFilterVisitor the visitor visitor) Visit this and all joined or nested table filters.

Inherited from java.lang.Object:: clone equals finalize getClass notify notifyAll wait wait wait

Field Detail

AFTER_LAST	back to summary
private static final int AFTER_LAST

alias	back to summary
private String alias

BEFORE_FIRST	back to summary
private static final int BEFORE_FIRST

commonJoinColumns	back to summary
private LinkedHashMap<Column, Column> commonJoinColumns Map of common join columns, used for NATURAL joins and USING clause of other joins. This map preserves original order of the columns.

commonJoinColumnsFilter	back to summary
private TableFilter commonJoinColumnsFilter

commonJoinColumnsToExclude	back to summary
private ArrayList<Column> commonJoinColumnsToExclude

current	back to summary
private Row current

currentSearchRow	back to summary
private SearchRow currentSearchRow

cursor	back to summary
private final IndexCursor cursor The filter used to walk through the index.

derivedColumnMap	back to summary
private LinkedHashMap<Column, String> derivedColumnMap Map of derived column names. This map preserves original order of the columns.

evaluatable	back to summary
private boolean evaluatable

filterCondition	back to summary
private Expression filterCondition Additional conditions that can't be used for index lookup, but for row filter for this table (ID=ID, NAME LIKE '%X%')

FOUND	back to summary
private static final int FOUND

foundOne	back to summary
private boolean foundOne

fullCondition	back to summary
private Expression fullCondition

hashCode	back to summary
private final int hashCode

index	back to summary
private Index index

indexConditions	back to summary
private final ArrayList<IndexCondition> indexConditions The index conditions used for direct index lookup (start or end).

indexHints	back to summary
private final IndexHints indexHints

JOI_VISITOR	back to summary
private static final TableFilter.TableFilterVisitor JOI_VISITOR A visitor that sets joinOuterIndirect to true.

join	back to summary
private TableFilter join The joined table (if there is one).

joinCondition	back to summary
private Expression joinCondition The complete join condition.

joinOuter	back to summary
private boolean joinOuter Whether this is an outer join.

joinOuterIndirect	back to summary
protected boolean joinOuterIndirect Whether this is a direct or indirect (nested) outer join

masks	back to summary
private int[] masks

nestedJoin	back to summary
private TableFilter nestedJoin The nested joined table (if there is one).

NULL_ROW	back to summary
private static final int NULL_ROW

ORDER_IN_FROM_COMPARATOR	back to summary
public static final Comparator<TableFilter> ORDER_IN_FROM_COMPARATOR Comparator that uses order in FROM clause as a sort key.

orderInFrom	back to summary
private final int orderInFrom

scanCount	back to summary
private int scanCount

select	back to summary
private final Select select

session	back to summary
private SessionLocal session

state	back to summary
private int state

table	back to summary
private final Table table

used	back to summary
private boolean used Indicates that this filter is used in the plan.

Constructor Detail

TableFilter	back to summary
public TableFilter(SessionLocal session, Table table, String alias, boolean rightsChecked, Select select, int orderInFrom, IndexHints indexHints) Create a new table filter object. Parameters session:SessionLocal the session table:Table the table from where to read data alias:String the alias name rightsChecked:boolean true if rights are already checked select:Select the select statement orderInFrom:int original order number (index) of this table filter in indexHints:IndexHints the index hints to be used by the query planner

TableFilter

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public TableFilter(SessionLocal session, Table table, String alias, boolean rightsChecked, Select select, int orderInFrom, IndexHints indexHints)

Create a new table filter object.

Parameters

session:SessionLocal: the session
table:Table: the table from where to read data
alias:String: the alias name
rightsChecked:boolean: true if rights are already checked
select:Select: the select statement
orderInFrom:int: original order number (index) of this table filter in
indexHints:IndexHints: the index hints to be used by the query planner

Method Detail

addCommonJoinColumns	back to summary
public void addCommonJoinColumns(Column leftColumn, Column replacementColumn, TableFilter replacementFilter) Add a column to the common join column list for a left table filter. Parameters leftColumn:Column the column on the left side replacementColumn:Column the column to use instead, may be the same as column on the left side replacementFilter:TableFilter the table filter for replacement columns

addCommonJoinColumns

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public void addCommonJoinColumns(Column leftColumn, Column replacementColumn, TableFilter replacementFilter)

Add a column to the common join column list for a left table filter.

Parameters

leftColumn:Column: the column on the left side
replacementColumn:Column: the column to use instead, may be the same as column on the left side
replacementFilter:TableFilter: the table filter for replacement columns

addCommonJoinColumnToExclude	back to summary
public void addCommonJoinColumnToExclude(Column columnToExclude) Add an excluded column to the common join column list. Parameters columnToExclude:Column the column to exclude

addCommonJoinColumnToExclude

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public void addCommonJoinColumnToExclude(Column columnToExclude)

Add an excluded column to the common join column list.

Parameters

columnToExclude:Column: the column to exclude

addFilter	back to summary
public void addFilter(Expression on) Add the join condition. Parameters on:Expression the condition

addFilter

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public void addFilter(Expression on)

Add the join condition.

Parameters

on:Expression: the condition

addFilterCondition	back to summary
public void addFilterCondition(Expression condition, boolean isJoin) Add a filter condition. Parameters condition:Expression the condition isJoin:boolean if this is in fact a join condition

addFilterCondition

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public void addFilterCondition(Expression condition, boolean isJoin)

Add a filter condition.

Parameters

condition:Expression: the condition
isJoin:boolean: if this is in fact a join condition

addIndexCondition	back to summary
public void addIndexCondition(IndexCondition condition) Add an index condition. Parameters condition:IndexCondition the index condition

addIndexCondition

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public void addIndexCondition(IndexCondition condition)

Add an index condition.

Parameters

condition:IndexCondition: the index condition

addJoin	back to summary
public void addJoin(TableFilter filter, boolean outer, Expression on) Add a joined table. Parameters filter:TableFilter the joined table filter outer:boolean if this is an outer join on:Expression the join condition

addJoin

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public void addJoin(TableFilter filter, boolean outer, Expression on)

Add a joined table.

Parameters

filter:TableFilter: the joined table filter
outer:boolean: if this is an outer join
on:Expression: the join condition

checkTimeout	back to summary
private void checkTimeout()

createIndexConditions	back to summary
public void createIndexConditions() Create the index conditions for this filter if needed.

findColumn back to summary

findColumn	back to summary
public Column findColumn(String name) Implements org.h2.table.ColumnResolver.findColumn. Doc from org.h2.table.ColumnResolver.findColumn. Get the column with the specified name. Parameters name:String the column name, must be a derived name if this column resolver has a derived column list Returns:Column the column with the specified name, or `null` Annotations @Override

public Column findColumn(String name)

Implements org.h2.table.ColumnResolver.findColumn.

Doc from org.h2.table.ColumnResolver.findColumn.

Get the column with the specified name.

Parameters

name:String: the column name, must be a derived name if this column resolver has a derived column list

Returns:Column

the column with the specified name, or null

Annotations

@Override

get	back to summary
public Row get() Get the current row. Returns:Row the current row, or null

get

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public Row get()

Get the current row.

Returns:Row: the current row, or null

getBestPlanItem

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public PlanItem getBestPlanItem(SessionLocal s, TableFilter[] filters, int filter, AllColumnsForPlan allColumnsSet)

Get the best plan item (index, cost) to use for the current join order.

Parameters

s:SessionLocal: the session
filters:TableFilter[]: all joined table filters
filter:int: the current table filter index
allColumnsSet:AllColumnsForPlan: the set of all columns

Returns:PlanItem

the best plan item

getColumn back to summary

public Column getColumn(String columnName, boolean ifExists)

Get the column with the given name.

Parameters

columnName:String: the column name
ifExists:boolean: if true return null if column does not exist

Returns:Column

the column

Exceptions

DbException:: if the column was not found and ifExists is false

getColumnName

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public String getColumnName(Column column)

Overrides default org.h2.table.ColumnResolver.getColumnName.

Doc from org.h2.table.ColumnResolver.getColumnName.

Get the name of the specified column.

Parameters

column:Column: column

Returns:String

column name

Annotations

@Override

getColumns

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public Column[] getColumns()

Implements org.h2.table.ColumnResolver.getColumns.

Doc from org.h2.table.ColumnResolver.getColumns.

Get the column list.

Returns:Column[]

the column list

Annotations

@Override

getCommonJoinColumns back to summary

public LinkedHashMap<Column, Column> getCommonJoinColumns()

Returns common join columns map.

Returns:LinkedHashMap<Column, Column>: common join columns map, or null

getCommonJoinColumnsFilter back to summary

public TableFilter getCommonJoinColumnsFilter()

Returns common join columns table filter.

Returns:TableFilter: common join columns table filter, or null

getDelegatedValue	back to summary
private Value getDelegatedValue(Column column)

getFilterCondition	back to summary
public Expression getFilterCondition()

getIndex	back to summary
public Index getIndex()

getIndexConditions	back to summary
public ArrayList<IndexCondition> getIndexConditions()

getIndexCursor	back to summary
public IndexCursor getIndexCursor()

getIndexHints	back to summary
public IndexHints getIndexHints()

getJoin	back to summary
public TableFilter getJoin()

getJoinCondition	back to summary
public Expression getJoinCondition()

getMasks	back to summary
public int[] getMasks()

getNestedJoin	back to summary
public TableFilter getNestedJoin()

getOrderInFrom

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public int getOrderInFrom()

Get the order number (index) of this table filter in the "from" clause of the query.

Returns:int: the index (0, 1, 2,...)

getPlanSQL

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public StringBuilder getPlanSQL(StringBuilder builder, boolean isJoin, int sqlFlags)

Get the query execution plan text to use for this table filter and append it to the specified builder.

Parameters

builder:StringBuilder: string builder to append to
isJoin:boolean: if this is a joined table
sqlFlags:int: formatting flags

Returns:StringBuilder

the specified builder

getRowIdColumn

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public Column getRowIdColumn()

Overrides default org.h2.table.ColumnResolver.getRowIdColumn.

Doc from org.h2.table.ColumnResolver.getRowIdColumn.

Get the row id pseudo column, if there is one.

Returns:Column

the row id column or null

Annotations

@Override

getSchemaName

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public String getSchemaName()

Overrides default org.h2.table.ColumnResolver.getSchemaName.

Doc from org.h2.table.ColumnResolver.getSchemaName.

Get the schema name or null.

Returns:String

the schema name or null

Annotations

@Override

getSelect

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public Select getSelect()

Overrides default org.h2.table.ColumnResolver.getSelect.

Doc from org.h2.table.ColumnResolver.getSelect.

Get the select statement.

Returns:Select

the select statement

Annotations

@Override

getSession	back to summary
public SessionLocal getSession()

getSystemColumns

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public Column[] getSystemColumns()

Overrides default org.h2.table.ColumnResolver.getSystemColumns.

Get the system columns that this table understands. This is used for compatibility with other databases. The columns are only returned if the current mode supports system columns.

Returns:Column[]

the system columns

Annotations

@Override

getTable	back to summary
public Table getTable()

getTableAlias

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public String getTableAlias()

Overrides default org.h2.table.ColumnResolver.getTableAlias.

Get the table alias name. If no alias is specified, the table name is returned.

Returns:String

the alias name

Annotations

@Override

getTableFilter

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public TableFilter getTableFilter()

Overrides default org.h2.table.ColumnResolver.getTableFilter.

Doc from org.h2.table.ColumnResolver.getTableFilter.

Get the table filter.

Returns:TableFilter

the table filter

Annotations

@Override

getValue

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public Value getValue(Column column)

Implements org.h2.table.ColumnResolver.getValue.

Doc from org.h2.table.ColumnResolver.getValue.

Get the value for the given column.

Parameters

column:Column: the column

Returns:Value

the value

Annotations

@Override

hasDerivedColumnList back to summary

public boolean hasDerivedColumnList()

Overrides default org.h2.table.ColumnResolver.hasDerivedColumnList.

Doc from org.h2.table.ColumnResolver.hasDerivedColumnList.

Returns whether this column resolver has a derived column list.

Returns:boolean

true if this column resolver has a derived column list, false otherwise

Annotations

@Override

hashCode back to summary

public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int

a hash code value for this object

Annotations

@Override

hasInComparisons

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public boolean hasInComparisons()

Are there any index conditions that involve IN(...).

Returns:boolean: whether there are IN(...) comparisons

isCommonJoinColumnToExclude

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public boolean isCommonJoinColumnToExclude(Column c)

Check if the given column is an excluded common join column.

Parameters

c:Column: the column to check

Returns:boolean

true if this is an excluded common join column

isEvaluatable	back to summary
public boolean isEvaluatable()

isJoinOuter

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public boolean isJoinOuter()

Whether this is an outer joined table.

Returns:boolean: true if it is

isJoinOuterIndirect

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public boolean isJoinOuterIndirect()

Whether this is indirectly an outer joined table (nested within an inner join).

Returns:boolean: true if it is

isNoFromClauseFilter

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public boolean isNoFromClauseFilter()

Returns whether this is a table filter with implicit DUAL table for a SELECT without a FROM clause.

Returns:boolean: whether this is a table filter with implicit DUAL table

isNullRow	back to summary
public boolean isNullRow()

isOk

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pack-priv boolean isOk(Expression condition)

Whether the current value of the condition is true, or there is no condition.

Parameters

condition:Expression: the condition (null for no condition)

Returns:boolean

true if yes

isUsed	back to summary
public boolean isUsed()

lock

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public void lock(SessionLocal s)

Lock the table. This will also lock joined tables.

Parameters

s:SessionLocal: the session

mapColumns

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public void mapColumns(ColumnResolver resolver, int level, boolean outer)

Map the columns to the given column resolver.

Parameters

resolver:ColumnResolver: the resolver
level:int: the subquery level (0 is the top level query, 1 is the first subquery level)
outer:boolean: whether this method was called from the outer query

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public boolean next()

Check if there are more rows to read.

Returns:boolean: true if there are

optimizeFullCondition	back to summary
pack-priv void optimizeFullCondition() Optimize the full condition. This will add the full condition to the filter condition.

prepare	back to summary
public void prepare() Prepare reading rows. This method will remove all index conditions that can not be used, and optimize the conditions.

removeFilterCondition	back to summary
public void removeFilterCondition() Remove the filter condition.

removeJoin	back to summary
public void removeJoin() Remove the joined table

removeJoinCondition	back to summary
public void removeJoinCondition() Remove the join condition.

removeUnusableIndexConditions	back to summary
pack-priv void removeUnusableIndexConditions() Remove all index conditions that are not used by the current index.

reset	back to summary
public void reset() Reset to the current position.

set

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public void set(Row current)

Set the current row.

Parameters

current:Row: the current row

setAlias	back to summary
public void setAlias(String alias)

setDerivedColumns

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public void setDerivedColumns(ArrayList<String> derivedColumnNames)

Set derived column list.

Parameters

derivedColumnNames:ArrayList<String>: names of derived columns

setEvaluatable

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public void setEvaluatable(TableFilter filter, boolean b)

Update the filter and join conditions of this and all joined tables with the information that the given table filter and all nested filter can now return rows or not.

Parameters

filter:TableFilter: the table filter
b:boolean: the new flag

setEvaluatable	back to summary
public void setEvaluatable(boolean evaluatable)

setFullCondition	back to summary
public void setFullCondition(Expression condition)

setIndex	back to summary
public void setIndex(Index index, boolean reverse)

setNestedJoin

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public void setNestedJoin(TableFilter filter)

Set a nested joined table.

Parameters

filter:TableFilter: the joined table filter

setNullRow	back to summary
protected void setNullRow() Set the state of this and all nested tables to the NULL row.

setPlanItem

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public void setPlanItem(PlanItem item)

Set what plan item (index, cost, masks) to use.

Parameters

item:PlanItem: the plan item

setScanIndexes	back to summary
private void setScanIndexes() Set all missing indexes to scan indexes recursively.

setUsed	back to summary
public void setUsed(boolean used)

startQuery

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public void startQuery(SessionLocal s)

Start the query. This will reset the scan counts.

Parameters

s:SessionLocal: the session

toString back to summary

public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object. Satisfying this method's contract implies a non-null result must be returned.

Returns:String

a string representation of the object

Annotations

@Override

visit

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public void visit(TableFilter.TableFilterVisitor visitor)

Visit this and all joined or nested table filters.

Parameters

visitor:TableFilter.TableFilterVisitor: the visitor

org.h2.table back to summary

private final Class TableFilter.MapColumnsVisitor

Class Inheritance

extends Object
implements TableFilterVisitor

java.lang.Object
org.h2.table.TableFilter.MapColumnsVisitor

All Implemented Interfaces

org.h2.table.TableFilter.TableFilterVisitor

A visitor that maps columns.

Field Summary

Modifier and Type	Field and Description
private final Expression	on

Constructor Summary

Access	Constructor and Description
pack-priv	MapColumnsVisitor(Expression on)

Method Summary

Modifier and Type	Method and Description
public void	accept(TableFilter the filter f) Implements org.h2.table.TableFilter.TableFilterVisitor.accept. This method is called for each nested or joined table filter.