Package io.github.torand.fastersql.projection

Interface Projection

All Superinterfaces:

Sql

All Known Subinterfaces:

AggregateFunction, ColumnFunction, Constant, Expression, Function, SingleRowFunction, SystemFunction

All Known Implementing Classes:

Abs, Addition, Avg, Ceil, Column, ColumnRef, Concat, Count, CountAll, CurrentDate, CurrentTime, CurrentTimestamp, Division, ExpressionSubquery, Floor, GenericConstant, Length, Lower, Max, Min, Modulo, Multiplication, NullConstant, Round, Substring, Subtraction, Sum, ToChar, ToNumber, Upper

public interface Projection
extends Sql

Defines a construct which can be returned in a result set, i.e. an item in the SELECT clause.

Method Summary

Modifier and Type	Method	Description
Optional<ColumnAlias>	alias()	Gets the column alias (label) assigned for this projection.
Projection	as(String alias)	Assigns a column alias (label) for this projection.

Methods inherited from interface io.github.torand.fastersql.sql.Sql

aliasRefs, columnRefs, params, sql

Method Details

as

Projection as(String alias)

Assigns a column alias (label) for this projection.

Parameters:

alias - the column alias or label.

Returns:

the projection with specified alias assigned.

alias

Optional<ColumnAlias> alias()

Gets the column alias (label) assigned for this projection.

Returns:

the column alias (label) assigned for this projection.