Package: ValueMerger

ValueMerger

Coverage

1: /*
2: * JOPA
3: * Copyright (C) 2024 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.jopa.sessions.merge;
19:
20: import cz.cvut.kbss.jopa.model.descriptors.Descriptor;
21: import cz.cvut.kbss.jopa.sessions.change.ChangeRecord;
22:
23: @FunctionalInterface
24: public interface ValueMerger {
25:
26: /**
27: * Merges new value specified by the change record into the target object.
28: * <p>
29: * Note that the change record may be modified during the merge (e.g., in case the new value is a detached instance of a managed type and
30: * a corresponding object needs to be loaded from the underlying repository).
31: *
32: * @param target Target of the merge
33: * @param changeRecord Description of the change (including the new value)
34: * @param attributeDescriptor Specifies context of the merged attribute
35: */
36: void mergeValue(Object target, ChangeRecord changeRecord, Descriptor attributeDescriptor);
37: }