public class QuadraticMeanExpression extends Object implements Expression
Aggregations.quadraticMean(Expression)
Modifier and Type | Field and Description |
---|---|
private Expression |
e |
private Expression |
sqrt |
Constructor and Description |
---|
QuadraticMeanExpression(Expression e) |
Modifier and Type | Method and Description |
---|---|
boolean |
equals(Object other)
This expression is equal to another QuadraticMeanExpression if their
child expressions are equal.
|
Collection<? extends QueryElement> |
getChildren()
Get the children of this query element or null if it has no children.
|
private Expression |
getSqrt() |
int |
hashCode() |
String |
toQl(Query query,
DbControl dc)
Create a query language string of the query element.
|
String |
toString() |
private final Expression e
private Expression sqrt
QuadraticMeanExpression(Expression e)
public Collection<? extends QueryElement> getChildren()
QueryElement
AddExpression
has two children, the expression
beeing added.getChildren
in interface QueryElement
public String toQl(Query query, DbControl dc) throws BaseException
QueryElement
Query.getQueryType()
method to find out which query language is wanted
in case the element requires different syntax for different languages.toQl
in interface QueryElement
query
- The query that is about to be executeddc
- The DbControl
object used to execute the queryBaseException
- If there is any other errorpublic boolean equals(Object other)
private Expression getSqrt()