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

Interface GridSqlAst

All Known Implementing Classes:

GridSqlAggregateFunction, GridSqlAlias, GridSqlArray, GridSqlColumn, GridSqlConst, GridSqlElement, GridSqlFunction, GridSqlJoin, GridSqlKeyword, GridSqlOperation, GridSqlParameter, GridSqlPlaceholder, GridSqlQuery, GridSqlSelect, GridSqlSubquery, GridSqlTable, GridSqlUnion, GridSqlValueRow

public interface GridSqlAst

AST for SQL.

Method Summary

Modifier and Type	Method and Description
<E extends GridSqlAst> E	child() Get the first child.
<E extends GridSqlAst> E	child(int childIdx) Get child by index.
<E extends GridSqlAst> void	child(int childIdx, E child) Set child.
String	getSQL()
GridSqlType	resultType()
int	size()

Method Detail

getSQL

String getSQL()

Returns:

Generate sql from this AST.

size

int size()

Returns:

Number of child nodes.

child

<E extends GridSqlAst> E child(int childIdx)

Get child by index.

Parameters:

childIdx - Index of the requested child.

Returns:

Child element.

child

<E extends GridSqlAst> E child()

Get the first child.

Returns:

Child element.

child

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

Set child.

Parameters:

childIdx - Index of the requested child.

child - Child element.

resultType

GridSqlType resultType()

Returns:

Optional expression result type (if this is an expression and result type is known).