Package io.github.torand.fastersql.function.system

Interface SystemFunction

All Superinterfaces:

Expression, Function, Projection, Sql

All Known Implementing Classes:

CurrentDate, CurrentTime, CurrentTimestamp

public interface SystemFunction
extends Function

Defines a function that returns a single value without operating on table rows.

Method Summary

Modifier and Type	Method	Description
default Stream<ColumnAlias>	aliasRefs()	Gets the column aliases referenced by this fragment.
default Stream<Column>	columnRefs()	Gets the columns referenced by this fragment.
default Stream<Object>	params(Context context)	Gets the statement parameters introduced by this fragment.

Methods inherited from interface io.github.torand.fastersql.expression.Expression

dividedBy, dividedBy, minus, minus, mod, mod, plus, plus, times, times

Methods inherited from interface io.github.torand.fastersql.projection.Projection

alias, as

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

sql

Method Details

params

default Stream<Object> params(Context context)

Description copied from interface: Sql

Gets the statement parameters introduced by this fragment.

Specified by:

params in interface Sql

Parameters:

context - the context (incl. dialect).

Returns:

the statement parameters.

columnRefs

default Stream<Column> columnRefs()

Description copied from interface: Sql

Gets the columns referenced by this fragment. For validation purposes.

Specified by:

columnRefs in interface Sql

Returns:

the columns referenced by this fragment.

aliasRefs

default Stream<ColumnAlias> aliasRefs()

Description copied from interface: Sql

Gets the column aliases referenced by this fragment. For validation purposes.

Specified by:

aliasRefs in interface Sql

Returns:

the column aliases referenced by this fragment.