如何将List <string>转换为GroupMatcher <jobkey>

Question

如何将List转换为GroupMatcher？

我的代码就像这样。

List<String> jobGroupNames = scheduler.getJobGroupNames();

现在我要检查

for (GroupMatcher<JobKey> jobGroup : jobGroupNames) {
}

这里jobGroupNames是List，所以我得到了这个错误

Type mismatch: cannot convert from element type String to GroupMatcher<JobKey>

Answer 1

jobGroupNames is a list of String, That's why you should iterate like below.

// loop jobs by group

List<String> jobGroupNames = scheduler.getJobGroupNames();

for (String groupName : jobGroupNames ) {

// And to get Job keys :

    for (JobKey jobKey : scheduler.getJobKeys(GroupMatcher.jobGroupEquals(groupName))) {
    }
}