Package io.deephaven.api.expression

Class Function

java.lang.Object

io.deephaven.api.expression.Function

All Implemented Interfaces:

Expression, Filter

@Immutable
public abstract class Function
extends Object
implements Expression, Filter

Represents a function call.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Function.Builder

Nested classes/interfaces inherited from interface io.deephaven.api.expression.Expression

Expression.Visitor<T>

Nested classes/interfaces inherited from interface io.deephaven.api.filter.Filter

Filter.Visitor<T>

Constructor Summary

Constructors

Constructor	Description
Function()

Method Summary

Modifier and Type	Method	Description
abstract List<Expression>	arguments()	The function arguments.
static Function.Builder	builder()
final FilterNot<Function>	invert()	The logical inversion of this.
abstract String	name()	The function name.
static Function	of(String name, Expression... arguments)
static Function	of(String name, List<? extends Expression> arguments)
final <T> T	walk(Expression.Visitor<T> visitor)
final <T> T	walk(Filter.Visitor<T> visitor)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Function

public Function()

Method Details

builder

public static Function.Builder builder()

of

public static Function of(String name,
 Expression... arguments)

of

public static Function of(String name,
 List<? extends Expression> arguments)

name

public abstract String name()

The function name.

Returns:

the name

arguments

public abstract List<Expression> arguments()

The function arguments.

Returns:

the arguments

invert

public final FilterNot<Function> invert()

Description copied from interface: Filter

The logical inversion of this. While logically equivalent to Filter.not(this), implementations of this method will return more specifically typed inversions where applicable.

Specified by:

invert in interface Filter

Returns:

the inverse filter

See Also:

• Filter.not(Filter)

walk

public final <T> T walk(Expression.Visitor<T> visitor)

Specified by:

walk in interface Expression

walk

public final <T> T walk(Filter.Visitor<T> visitor)

Specified by:

walk in interface Filter