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Package: PluralAttribute$CollectionType

PluralAttribute$CollectionType

nameinstructionbranchcomplexitylinemethod
PluralAttribute.CollectionType(String, int, Class)
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fromClass(Class)
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static {...}
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Coverage

1: /**
2: * Copyright (C) 2020 Czech Technical University in Prague
3: *
4: * This program is free software: you can redistribute it and/or modify it under
5: * the terms of the GNU General Public License as published by the Free Software
6: * Foundation, either version 3 of the License, or (at your option) any
7: * later version.
8: *
9: * This program is distributed in the hope that it will be useful, but WITHOUT
10: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11: * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
12: * details. You should have received a copy of the GNU General Public License
13: * along with this program. If not, see <http://www.gnu.org/licenses/>.
14: */
15: package cz.cvut.kbss.jopa.model.metamodel;
16:
17: import java.util.Collection;
18: import java.util.List;
19: import java.util.Map;
20: import java.util.Set;
21:
22: /**
23: * Instances of the type PluralAttribute represent persistent collection-valued
24: * attributes.
25: *
26: * @param <X>
27: * The type the represented collection belongs to
28: * @param <C>
29: * The type of the represented collection
30: * @param <E>
31: * The element type of the represented collection
32: */
33: public interface PluralAttribute<X, C, E> extends Attribute<X, C>, Bindable<E> {
34:
35: enum CollectionType {
36: SET(Set.class), LIST(List.class), COLLECTION(Collection.class), MAP(Map.class);
37:
38: private final Class<?> collectionClass;
39:
40: CollectionType(Class<?> cls) {
41: this.collectionClass = cls;
42: }
43:
44: public static CollectionType fromClass(Class<?> cls) {
45:• for (CollectionType type : values()) {
46:• if (type.collectionClass.isAssignableFrom(cls)) {
47: return type;
48: }
49: }
50: throw new IllegalArgumentException("Unsupported collection class " + cls);
51: }
52: }
53:
54: /**
55: * Return the collection type.
56: *
57: * @return collection type
58: */
59: CollectionType getCollectionType();
60:
61: /**
62: * Return the type representing the element type of the collection.
63: *
64: * @return element type
65: */
66: Type<E> getElementType();
67: }