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✨ 优化 tree 泛型

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如梦技术 2018-12-27 11:29:51 +08:00
parent d40e743be9
commit a9dcbaacec
2 changed files with 52 additions and 47 deletions
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21
blade-core-tool/src/main/java/org/springblade/core/tool/node/ForestNodeManager.java
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@ -23,11 +23,14 @@ import java.util.List;
* *
* @author zhuangqian * @author zhuangqian
*/ */
public class ForestNodeManager { public class ForestNodeManager<T extends INode> {
private List<INode> list;// 森林的所有节点 /**
* 森林的所有节点
*/
private List<T> list;
public ForestNodeManager(List<INode> items) { public ForestNodeManager(List<T> items) {
list = items; list = items;
} }
@ -39,9 +42,10 @@ public class ForestNodeManager {
*/ */
public INode getTreeNodeAT(int id) { public INode getTreeNodeAT(int id) {
for (INode forestNode : list) { for (INode forestNode : list) {
if (forestNode.getId() == id) if (forestNode.getId() == id) {
return forestNode; return forestNode;
} }
}
return null; return null;
} }
@ -50,12 +54,13 @@ public class ForestNodeManager {
* *
* @return 树的根节点集合 * @return 树的根节点集合
*/ */
public List<INode> getRoot() { public List<T> getRoot() {
List<INode> roots = new ArrayList<>(); List<T> roots = new ArrayList<>();
for (INode forestNode : list) { for (T forestNode : list) {
if (forestNode.getParentId() == 0) if (forestNode.getParentId() == 0) {
roots.add(forestNode); roots.add(forestNode);
} }
}
return roots; return roots;
} }

6
blade-core-tool/src/main/java/org/springblade/core/tool/node/ForestNodeMerger.java
View File

@ -31,9 +31,9 @@ public class ForestNodeMerger {
* @param items 节点域 * @param items 节点域
* @return 多棵树的根节点集合 * @return 多棵树的根节点集合
*/ */
public static List<INode> merge(List<INode> items) { public static <T extends INode> List<T> merge(List<T> items) {
ForestNodeManager forestNodeManager = new ForestNodeManager(items); ForestNodeManager<T> forestNodeManager = new ForestNodeManager<>(items);
for (INode forestNode : items) { for (T forestNode : items) {
if (forestNode.getParentId() != 0) { if (forestNode.getParentId() != 0) {
INode node = forestNodeManager.getTreeNodeAT(forestNode.getParentId()); INode node = forestNodeManager.getTreeNodeAT(forestNode.getParentId());
node.getChildren().add(forestNode); node.getChildren().add(forestNode);