Package com.sap.cds.ql.cqn

Interface CqnSelectListValue

All Superinterfaces:

CqnSelectListItem, CqnToken, JSONizable, Selectable

All Known Subinterfaces:

CqnElementRef, ElementRef<T>

public interface CqnSelectListValue
extends CqnSelectListItem

Method Summary

Modifier and Type	Method	Description
default void	accept(CqnVisitor visitor)	Traverses the expression tree represented by this token with a given visitor.
Optional<String>	alias()
default CqnElementRef	asRef()
default CqnSelectListValue	asValue()
String	displayName()	Returns display name of this select list value.
default boolean	isRef()
default boolean	isValue()
default Stream<CqnElementRef>	ofRef()
default Stream<CqnSelectListValue>	ofValue()
CqnValue	value()

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

asExpand, asSelectList, isExpand, isSelectList, isStar, token, unfold

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

tokens

Methods inherited from interface com.sap.cds.JSONizable

toJson

Method Details

value

CqnValue value()

displayName

String displayName()

Returns display name of this select list value. It is the name of the element of the underlying entity or the alias.

Returns:

the display name as a string

alias

Optional<String> alias()

isValue

default boolean isValue()

Specified by:

isValue in interface CqnSelectListItem

asValue

default CqnSelectListValue asValue()

Specified by:

asValue in interface CqnSelectListItem

ofValue

default Stream<CqnSelectListValue> ofValue()

Specified by:

ofValue in interface CqnSelectListItem

isRef

default boolean isRef()

Specified by:

isRef in interface CqnSelectListItem

asRef

default CqnElementRef asRef()

Specified by:

asRef in interface CqnSelectListItem

ofRef

default Stream<CqnElementRef> ofRef()

Specified by:

ofRef in interface CqnSelectListItem

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 CqnToken

Parameters:

visitor - the CqnVisitor