| /* |
| * Copyright (C) 2007-2010 JĂșlio Vilmar Gesser. |
| * Copyright (C) 2011, 2013-2016 The JavaParser Team. |
| * |
| * This file is part of JavaParser. |
| * |
| * JavaParser can be used either under the terms of |
| * a) the GNU Lesser General Public License as published by |
| * the Free Software Foundation, either version 3 of the License, or |
| * (at your option) any later version. |
| * b) the terms of the Apache License |
| * |
| * You should have received a copy of both licenses in LICENCE.LGPL and |
| * LICENCE.APACHE. Please refer to those files for details. |
| * |
| * JavaParser is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU Lesser General Public License for more details. |
| */ |
| |
| package com.github.javaparser.ast.observer; |
| |
| import com.github.javaparser.ast.Node; |
| import com.github.javaparser.ast.NodeList; |
| |
| /** |
| * An Observer for an AST element (either a Node or a NodeList). |
| */ |
| public interface AstObserver { |
| |
| /** |
| * Type of change occurring on a List |
| */ |
| enum ListChangeType { |
| ADDITION, |
| REMOVAL |
| } |
| |
| /** |
| * The value of a property is changed |
| * |
| * @param observedNode owner of the property |
| * @param property property changed |
| * @param oldValue value of the property before the change |
| * @param newValue value of the property after the change |
| */ |
| void propertyChange(Node observedNode, ObservableProperty property, Object oldValue, Object newValue); |
| |
| /** |
| * The parent of a node is changed |
| * |
| * @param observedNode node of which the parent is changed |
| * @param previousParent previous parent |
| * @param newParent new parent |
| */ |
| void parentChange(Node observedNode, Node previousParent, Node newParent); |
| |
| /** |
| * A list is changed |
| * |
| * @param observedNode list changed |
| * @param type type of change |
| * @param index position at which the changed occurred |
| * @param nodeAddedOrRemoved element added or removed |
| */ |
| void listChange(NodeList observedNode, ListChangeType type, int index, Node nodeAddedOrRemoved); |
| |
| void listReplacement(NodeList observedNode, int index, Node oldNode, Node newNode); |
| } |