cz.jirutka.rsql.parser.ast

Interface Arity

public interface Arity

The arity of an operator.

Since:

2.3.0

Method Summary

Modifier and Type	Method and Description
int	max() The maximum number of arguments operator can receive.
int	min() The minimum number of arguments operator can receive.
static Arity	nary(int n) Creates N-ary object.
static Arity	of(int min, int max) Creates arity with given min and max.

Method Detail

min

int min()

The minimum number of arguments operator can receive.

Returns:

The minimum number of arguments operator can receive. Positive or zero.

API Note:

The minimum values is always less than or equal to max()

max

int max()

The maximum number of arguments operator can receive.

Returns:

The maximum number of arguments operator can receive. Positive or zero.

API Note:

The maximum values is always greater than or equal to min(). For practically unlimited arity the implementations should return Integer.MAX_VALUE.

of

static Arity of(int min,
                int max)

Creates arity with given min and max.

Parameters:

min - The minimum number of arguments. Must be zero or positive.

max - The maximum number of arguments. Must be zero or positive and greater than or equal to min.

Returns:

the created arity

nary

static Arity nary(int n)

Creates N-ary object.

Parameters:

n - The N.

Returns:

the created arity