package com.walker.common;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.List;
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/**
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* 通用上下级关系对象
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*
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* @author 时克英
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*/
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public class LinkedItem<I, P, C> {
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// 当前节点
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private I item;
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// 父节点
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private P parent;
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// 子节点
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private List<C> children;
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/**
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* 默认构造函数
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*/
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public LinkedItem() {
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}
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/**
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* 根据当前节点构造对象
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*
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* @param item 当前对象
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*/
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public LinkedItem(I item) {
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this.item = item;
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}
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/**
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* 根据当前节点和父节点构造对象
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*
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* @param item 当前节点
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* @param parent 父节点
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*/
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public LinkedItem(I item, P parent) {
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this.item = item;
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this.parent = parent;
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}
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/**
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* 根据当前节点、父节点、子节点信息构造对象
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*
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* @param item 当前节点
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* @param parent 父节点对象
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* @param children 子节点信息
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*/
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public LinkedItem(I item, P parent, List<C> children) {
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this.item = item;
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this.parent = parent;
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this.children = children;
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}
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/**
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* 增加子节点信息，
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*
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* @param child 子节点
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*/
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public void addChild(C child) {
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if (this.children == null) {
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this.children = new ArrayList<>();
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}
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this.children.add(child);
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}
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/**
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* 将所有的childs增加到当前节点
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*
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* @param childs 子节点集合
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*/
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public void addChildren(Collection<C> childs) {
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if (this.children == null && (childs != null && childs.size() > 0)) {
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this.children = new ArrayList<>();
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this.children.addAll(childs);
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}
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}
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public I getItem() {
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return item;
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}
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public void setItem(I item) {
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this.item = item;
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}
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public P getParent() {
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return parent;
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}
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public void setParent(P parent) {
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this.parent = parent;
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}
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public List<C> getChildren() {
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return children;
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}
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public void setChildren(List<C> children) {
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this.children = children;
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}
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}
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