ZhouXY108/hutool
1
0
Fork 0
mirror of https://gitee.com/chinabugotech/hutool.git synced 2025-05-09 23:51:34 +08:00
Code Issues Packages Projects Releases Wiki Activity

减少额外的判断;

Browse Source
This commit is contained in:
Zjp 2022-09-19 09:01:12 +08:00
parent 4693b7bc97
commit df748856d7
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
hutool-core/src/main/java/cn/hutool/core/stream/EasyStream.java
View File

@ -319,12 +319,12 @@ public class EasyStream<T> extends AbstractEnhancedWrappedStream<T, EasyStream<T
List<T> nodeList = toList(); List<T> nodeList = toList();
// 根据 父id 分组，让key为null的组中全是根节点 // 根据 父id 分组，让key为null的组中全是根节点
final Function<T, R> pIdClassifier = node -> { final Function<T, R> pIdClassifier = node -> {
R parentId = pIdGetter.apply(node); // 该节点是根节点, 分到 父id 为null的组中
// 父id为null（另类的根节点），或者是根节点 if (parentPredicate.test(node)) {
if (parentId == null || parentPredicate.test(node)) {
return null; return null;
} }
return parentId; // 返回 父id
return pIdGetter.apply(node);
}; };
// 父id 关联的 子节点列表 // 父id 关联的 子节点列表
final Map<R, List<T>> pId2ChildrenMap = of(nodeList).group(pIdClassifier); final Map<R, List<T>> pId2ChildrenMap = of(nodeList).group(pIdClassifier);