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/*
* Copyright 2019-2024 the original author or authors.
*
* Licensed 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
*
* https://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 com.power4j.tile.collection.tree.domain;
/**
* 树形节点路径索引
*
* @author CJ ([email protected])
* @since 1.0
*/
public interface NodeIdx> {
/**
* 祖先节点
* @return 祖先节点ID
*/
ID getAncestor();
/**
* 后代节点
* @return 后代节点ID
*/
ID getDescendant();
/**
* 层距离,指向自己时距离为0
* @return 层距离
*/
int getDistance();
/**
* 是否表示一个节点
* @return 返回true表示这是一个节点
*/
default boolean isNode() {
return getDistance() == 0;
}
/**
* 是否父子关系
* @return 返回true表示两个节点是父子关系
*/
default boolean immediate() {
return getDistance() == 1;
}
/**
* 是否一个节点或者父子关系
* @return 返回true表示两个节点是父子关系
*/
default boolean isNodeOrImmediate() {
return isNode() || immediate();
}
}