| 1 | /* |
|---|---|
| 2 | * Copyright (C) 2007-2010 Júlio Vilmar Gesser. |
| 3 | * Copyright (C) 2011, 2013-2020 The JavaParser Team. |
| 4 | * |
| 5 | * This file is part of JavaParser. |
| 6 | * |
| 7 | * JavaParser can be used either under the terms of |
| 8 | * a) the GNU Lesser General Public License as published by |
| 9 | * the Free Software Foundation, either version 3 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * b) the terms of the Apache License |
| 12 | * |
| 13 | * You should have received a copy of both licenses in LICENCE.LGPL and |
| 14 | * LICENCE.APACHE. Please refer to those files for details. |
| 15 | * |
| 16 | * JavaParser is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU Lesser General Public License for more details. |
| 20 | */ |
| 21 | |
| 22 | package com.github.javaparser.ast.observer; |
| 23 | |
| 24 | import com.github.javaparser.ast.Node; |
| 25 | import com.github.javaparser.ast.NodeList; |
| 26 | |
| 27 | /** |
| 28 | * An Observer for an AST element (either a Node or a NodeList). |
| 29 | */ |
| 30 | public interface AstObserver { |
| 31 | |
| 32 | /** |
| 33 | * Type of change occurring on a List |
| 34 | */ |
| 35 | enum ListChangeType { |
| 36 | ADDITION, |
| 37 | REMOVAL |
| 38 | } |
| 39 | |
| 40 | /** |
| 41 | * The value of a property is changed |
| 42 | * |
| 43 | * @param observedNode owner of the property |
| 44 | * @param property property changed |
| 45 | * @param oldValue value of the property before the change |
| 46 | * @param newValue value of the property after the change |
| 47 | */ |
| 48 | void propertyChange(Node observedNode, ObservableProperty property, Object oldValue, Object newValue); |
| 49 | |
| 50 | /** |
| 51 | * The parent of a node is changed |
| 52 | * |
| 53 | * @param observedNode node of which the parent is changed |
| 54 | * @param previousParent previous parent |
| 55 | * @param newParent new parent |
| 56 | */ |
| 57 | void parentChange(Node observedNode, Node previousParent, Node newParent); |
| 58 | |
| 59 | /** |
| 60 | * A list is changed |
| 61 | * |
| 62 | * @param observedNode list changed |
| 63 | * @param type type of change |
| 64 | * @param index position at which the changed occurred |
| 65 | * @param nodeAddedOrRemoved element added or removed |
| 66 | */ |
| 67 | void listChange(NodeList<?> observedNode, ListChangeType type, int index, Node nodeAddedOrRemoved); |
| 68 | |
| 69 | void listReplacement(NodeList<?> observedNode, int index, Node oldNode, Node newNode); |
| 70 | } |
| 71 |
Members