1 package net.bmahe.genetics4j.gp;
2
3 import java.util.List;
4 import java.util.function.BiFunction;
5
6 import org.immutables.value.Value;
7 import org.immutables.value.Value.Parameter;
8
9 @Value.Immutable
10 public abstract class Operation<T> {
11
12 @Parameter
13 public abstract String getName();
14
15 @SuppressWarnings("rawtypes")
16 @Parameter
17 public abstract List<Class> acceptedTypes();
18
19 @SuppressWarnings("rawtypes")
20 @Parameter
21 public abstract Class returnedType();
22
23 @Parameter
24 @Value.Auxiliary
25 public abstract BiFunction<T[], Object[], Object> compute();
26
27 @Value.Default
28 public String getPrettyName() {
29 return getName();
30 }
31
32 public Object apply(final T[] input, final Object[] parameters) {
33 final BiFunction<T[], Object[], Object> function = compute();
34 return function.apply(input, parameters);
35 }
36
37 public int getArity() {
38 return acceptedTypes().size();
39 }
40
41 public boolean isTerminal() {
42 return getArity() == 0;
43 }
44 }