blob: 69c7e5f6ef76a736771849c4db10c2a17eabc261 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/*
* SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.logic.term;
import tools.refinery.logic.equality.LiteralHashCodeHelper;
import tools.refinery.logic.InvalidQueryException;
import tools.refinery.logic.equality.LiteralEqualityHelper;
import tools.refinery.logic.substitution.Substitution;
import tools.refinery.logic.valuation.Valuation;
import java.util.Objects;
import java.util.Set;
// {@link Object#equals(Object)} is implemented by {@link AbstractTerm}.
@SuppressWarnings("squid:S2160")
public final class ConstantTerm<T> extends AbstractTerm<T> {
private final T value;
public ConstantTerm(Class<T> type, T value) {
super(type);
if (value != null && !type.isInstance(value)) {
throw new InvalidQueryException("Value %s is not an instance of %s".formatted(value, type.getName()));
}
this.value = value;
}
public T getValue() {
return value;
}
@Override
public T evaluate(Valuation valuation) {
return getValue();
}
@Override
public Term<T> substitute(Substitution substitution) {
return this;
}
@Override
public boolean equalsWithSubstitution(LiteralEqualityHelper helper, AnyTerm other) {
if (!super.equalsWithSubstitution(helper, other)) {
return false;
}
var otherConstantTerm = (ConstantTerm<?>) other;
return Objects.equals(value, otherConstantTerm.value);
}
@Override
public int hashCodeWithSubstitution(LiteralHashCodeHelper helper) {
return Objects.hash(super.hashCodeWithSubstitution(helper), Objects.hash(value));
}
@Override
public Set<AnyDataVariable> getInputVariables() {
return Set.of();
}
@Override
public String toString() {
return value.toString();
}
}
|
