Package org.apache.ignite.internal.processors.query.h2.sql

Class GridSqlUnion

java.lang.Object

org.apache.ignite.internal.processors.query.h2.sql.GridSqlStatement

org.apache.ignite.internal.processors.query.h2.sql.GridSqlQuery

org.apache.ignite.internal.processors.query.h2.sql.GridSqlUnion

All Implemented Interfaces:

GridSqlAst

public class GridSqlUnion
extends GridSqlQuery

Select query with UNION.

Field Summary

Fields

Modifier and Type	Field	Description
static int	LEFT_CHILD
static int	RIGHT_CHILD

Fields inherited from class org.apache.ignite.internal.processors.query.h2.sql.GridSqlQuery

LIMIT_CHILD, OFFSET_CHILD, sort

Fields inherited from class org.apache.ignite.internal.processors.query.h2.sql.GridSqlStatement

limit

Constructor Summary

Constructors

Constructor	Description
GridSqlUnion()

Method Summary

Modifier and Type	Method	Description
<E extends GridSqlAst> E	child(int childIdx)	Get child by index.
<E extends GridSqlAst> void	child(int childIdx, E child)	Set child.
protected GridSqlElement	column(int col)
String	getSQL()
GridSqlQuery	left()
void	left(GridSqlQuery left)
GridSqlQuery	right()
void	right(GridSqlQuery right)
int	size()
boolean	skipMergeTable()
org.h2.command.dml.SelectUnion.UnionType	unionType()
void	unionType(org.h2.command.dml.SelectUnion.UnionType unionType)
protected int	visibleColumns()

Methods inherited from class org.apache.ignite.internal.processors.query.h2.sql.GridSqlQuery

addSort, child, clearSort, getSortLimitSQL, hasOffsetLimit, maskNull, offset, offset, resultType, sort

Methods inherited from class org.apache.ignite.internal.processors.query.h2.sql.GridSqlStatement

explain, explain, limit, limit, toString

Methods inherited from class java.lang.Object

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

Field Detail

LEFT_CHILD

public static final int LEFT_CHILD

See Also:

Constant Field Values

RIGHT_CHILD

public static final int RIGHT_CHILD

See Also:

Constant Field Values

Constructor Detail

GridSqlUnion

public GridSqlUnion()

Method Detail

child

public <E extends GridSqlAst> E child(int childIdx)

Get child by index.

Specified by:

child in interface GridSqlAst

Overrides:

child in class GridSqlQuery

Parameters:

childIdx - Index of the requested child.

Returns:

Child element.

child

public <E extends GridSqlAst> void child(int childIdx,
                                         E child)

Set child.

Specified by:

child in interface GridSqlAst

Overrides:

child in class GridSqlQuery

Parameters:

childIdx - Index of the requested child.

child - Child element.

size

public int size()

Returns:

Number of child nodes.

visibleColumns

protected int visibleColumns()

Specified by:

visibleColumns in class GridSqlQuery

Returns:

Number of visible columns.

column

protected GridSqlElement column(int col)

Specified by:

column in class GridSqlQuery

Parameters:

col - Column index.

Returns:

Expression for column index.

getSQL

public String getSQL()

Specified by:

getSQL in interface GridSqlAst

Specified by:

getSQL in class GridSqlStatement

Returns:

Generate sql.

skipMergeTable

public boolean skipMergeTable()

Specified by:

skipMergeTable in class GridSqlQuery

Returns:

If this is a simple query with no conditions, expressions, sorting, etc...

unionType

public org.h2.command.dml.SelectUnion.UnionType unionType()

Returns:

Union type.

unionType

public void unionType(org.h2.command.dml.SelectUnion.UnionType unionType)

Parameters:

unionType - New union type.

right

public GridSqlQuery right()

Returns:

Right.

right

public void right(GridSqlQuery right)

Parameters:

right - New right.

left

public GridSqlQuery left()

Returns:

Left.

left

public void left(GridSqlQuery left)

Parameters:

left - New left.