Method: JsonLdPropertyAccessResolver()

1: /*
2: * JB4JSON-LD
3: * Copyright (C) 2023 Czech Technical University in Prague
4: *
5: * This library is free software; you can redistribute it and/or
6: * modify it under the terms of the GNU Lesser General Public
7: * License as published by the Free Software Foundation; either
8: * version 3.0 of the License, or (at your option) any later version.
9: *
10: * This library is distributed in the hope that it will be useful,
11: * but WITHOUT ANY WARRANTY; without even the implied warranty of
12: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13: * Lesser General Public License for more details.
14: *
15: * You should have received a copy of the GNU Lesser General Public
16: * License along with this library.
17: */
18: package cz.cvut.kbss.jsonld.common;
19:
20: import cz.cvut.kbss.jsonld.annotation.JsonLdProperty;
21:
22: import java.lang.reflect.Field;
23: import java.util.Objects;
24:
25: import static cz.cvut.kbss.jsonld.common.BeanAnnotationProcessor.isInstanceIdentifier;
26: import static cz.cvut.kbss.jsonld.common.BeanAnnotationProcessor.isTypesField;
27:
28: /**
29: * Resolves property access based on the {@link cz.cvut.kbss.jsonld.annotation.JsonLdProperty} annotation value.
30: */
31: public class JsonLdPropertyAccessResolver implements PropertyAccessResolver {
32:
33: @Override
34: public boolean isReadable(Field field, Class<?> objectClass) {
35: Objects.requireNonNull(field);
36: final JsonLdProperty annotation = field.getAnnotation(JsonLdProperty.class);
37: return annotation == null || annotation.access() != JsonLdProperty.Access.WRITE_ONLY ||
38: isInstanceIdentifier(field) || isTypesField(field);
39: }
40:
41: @Override
42: public boolean isWriteable(Field field) {
43: Objects.requireNonNull(field);
44: final JsonLdProperty annotation = field.getAnnotation(JsonLdProperty.class);
45: return annotation == null || annotation.access() != JsonLdProperty.Access.READ_ONLY;
46: }
47: }