Package com.sap.cds.ql.cqn

Interface CqnWindowFunc

All Superinterfaces:

CqnFunc, CqnToken, CqnValue, JSONizable

All Known Subinterfaces:

WindowFunctionCall<T>

@Beta
public interface CqnWindowFunc
extends CqnFunc

A window function call. A window function an only be executed on an SQL data store.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	CqnWindowFunc.WindowSpecification

Method Summary

Modifier and Type	Method	Description
default void	accept(CqnVisitor visitor)	Traverses the expression tree represented by this token with a given visitor.
CqnWindowFunc.WindowSpecification	window()	Returns the window specification of this window function

Methods inherited from interface com.sap.cds.ql.cqn.CqnFunc

args, asFunction, func, isFunction

Methods inherited from interface com.sap.cds.ql.cqn.CqnToken

tokens

Methods inherited from interface com.sap.cds.ql.cqn.CqnValue

as, asExpression, asList, asLiteral, asNullValue, asParameter, asPlain, asRef, isExpression, isList, isLiteral, isNullValue, isParameter, isPlain, isRef, ofLiteral, ofRef, type

Methods inherited from interface com.sap.cds.JSONizable

toJson

Method Details

window

CqnWindowFunc.WindowSpecification window()

Returns the window specification of this window function

Returns:

the window specification

accept

default void accept(CqnVisitor visitor)

Description copied from interface: CqnToken

Traverses the expression tree represented by this token with a given visitor. The traversal order is depth-first. If this token has child nodes they are traversed first by dispatching the visitor to the children's accept methods. Afterwards this token is passed to the visitor's visit method specific for this token's type.

Specified by:

accept in interface CqnFunc

Specified by:

accept in interface CqnToken

Parameters:

visitor - the CqnVisitor