SqlGroupBy (Common module of Exasol Virtual Schemas Adapters 17.1.0 API)

java.lang.Object
- com.exasol.adapter.sql.SqlNode
- - com.exasol.adapter.sql.SqlExpressionList
  - - com.exasol.adapter.sql.SqlGroupBy

public class SqlGroupBy
extends SqlExpressionList

Represents a GROUP BY statement.

Constructor Summary

Constructors
Constructor	Description
`SqlGroupBy(List<SqlNode> groupByList)`	Create a new instance of `SqlGroupBy`.
`SqlGroupBy(List<SqlNode> groupByList, boolean singleGroupAggregation)`	Create a new instance of `SqlGroupBy`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`<R> R`	`accept(SqlNodeVisitor<R> visitor)`	See `SqlNodeVisitor`
`SqlNodeType`	`getType()`	Gets type.
`boolean`	`isSingleGroupAggregation()`	Check if this group by is a single group aggregation.

Methods inherited from class com.exasol.adapter.sql.SqlExpressionList
getExpressions

Methods inherited from class com.exasol.adapter.sql.SqlNode
getParent, hasParent, setParent

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SqlGroupBy
```
public SqlGroupBy(List<SqlNode> groupByList,
                  boolean singleGroupAggregation)
```
    Create a new instance of SqlGroupBy.
    
    Parameters:
    
    groupByList - list of expressions
    
    singleGroupAggregation - true if the aggregation is a single group
  - SqlGroupBy
```
public SqlGroupBy(List<SqlNode> groupByList)
```
    Create a new instance of SqlGroupBy.
    
    Parameters:
    
    groupByList - list of expressions
- Method Detail
  - getType
```
public SqlNodeType getType()
```
    Description copied from class: SqlNode
    
    Gets type.
    
    Specified by:
    
    getType in class SqlNode
    
    Returns:
    
    the type
  - accept
```
public <R> R accept(SqlNodeVisitor<R> visitor)
             throws AdapterException
```
    Description copied from class: SqlNode
    
    See SqlNodeVisitor
    
    Specified by:
    
    accept in class SqlNode
    
    Type Parameters:
    
    R - generic SqlNodeVisitor type
    
    Parameters:
    
    visitor - The visitor object on which the appropriate visit(sqlNode) method is called
    
    Returns:
    
    visited object
    
    Throws:
    
    AdapterException - can be thrown
  - isSingleGroupAggregation
```
public boolean isSingleGroupAggregation()
```
    Check if this group by is a single group aggregation.
    
    Returns:
    
    true if this group by is a single group aggregation