Package org.apache.calcite.linq4j.function

Interface Function1<T0,R>

Type Parameters:

T0 - Type of parameter 0

R - Result type

All Superinterfaces:

Function<R>

All Known Subinterfaces:

BigDecimalFunction1<T0>, NullableBigDecimalFunction1<T0>, NullableDoubleFunction1<T0>, NullableFloatFunction1<T0>, NullableIntegerFunction1<T0>, NullableLongFunction1<T0>, RelProtoDataType

public interface Function1<T0,R>
extends Function<R>

Function with one parameter.

Field Summary

Fields

Modifier and Type	Field	Description
static final Function1<Object,Object>	IDENTITY	The identity function.

Method Summary

Modifier and Type	Method	Description
R	apply(T0 a0)

Field Details

IDENTITY

static final Function1<Object,Object> IDENTITY

The identity function.

See Also:

• Functions.identitySelector()

Method Details

apply

R apply(T0 a0)