GridSqlAst (Ignite 2.17.0)

All Known Implementing Classes:

GridSqlAggregateFunction, GridSqlAlias, GridSqlArray, GridSqlColumn, GridSqlConst, GridSqlElement, GridSqlFunction, GridSqlJoin, GridSqlKeyword, GridSqlOperation, GridSqlParameter, GridSqlPlaceholder, GridSqlQuery, GridSqlSelect, GridSqlSubquery, GridSqlTable, GridSqlUnion
```
public interface GridSqlAst
```
AST for SQL.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	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).