| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.xml.security.signature; |
| |
| import org.w3c.dom.Node; |
| |
| /** |
| * An interface to tell to the c14n if a node is included or not in the output |
| */ |
| public interface NodeFilter { |
| |
| /** |
| * Tells if a node must be output in c14n. |
| * @param n |
| * @return 1 if the node should be output. |
| * 0 if node must not be output, |
| * -1 if the node and all it's child must not be output. |
| * |
| */ |
| int isNodeInclude(Node n); |
| |
| /** |
| * Tells if a node must be output in a c14n. |
| * The caller must assured that this method is always call |
| * in document order. The implementations can use this |
| * restriction to optimize the transformation. |
| * @param n |
| * @param level the relative level in the tree |
| * @return 1 if the node should be output. |
| * 0 if node must not be output, |
| * -1 if the node and all it's child must not be output. |
| */ |
| int isNodeIncludeDO(Node n, int level); |
| |
| } |