如何使用OpenLDAP API选择LDAP客户端绑定的地址？(How do you select which address the LDAP client binds to using OpenLDAP API?)

 我们不提供这样的API，因为它可能导致误用。 例如检查一份工作是否存在以决定是否添加（因为这是竞争条件的处方）。 
 
 如果你真的需要这个，你可以覆盖持久队列并提供你自己的队列，在那里你可以追踪工作增加/删除。 有关详细信息，请参阅JobManager配置WIKI： 
 
 https://github.com/yigit/android-priority-jobqueue/wiki/Job-Manager-Configuration 
 
 编辑：一个示例竞赛条件 
 
 有人可能会写这样的代码： 
 
if (!jobManager.hasJobOfType(ImportantJob.class)) {
    jobManager.addJob(new ImportantJob());
} else {
    // it is already added, no need to re add
}
 
 这里hasJobOfType返回true，但同时Job将要被取消。 现在，没有工作要运行：/。 另一种竞争条件是，代码可能在其他地方调用了addJobInBackground因此它将被添加，但它在hasJobOfType调用时尚未添加。 
 
 这种情况下的最佳解决方案是在onCancel中重新创建另一项工作，或手动处理onRun方法中的以前作业的取消（使用全局计数器等）。 另一个选择是使用其回调版本的cancelAsync方法。 
 
 http://yigit.github.io/android-priority-jobqueue/javadoc/index.html 

We don't provide such an API because it may lead to mis-uses. e.g. checking a job if it exists to decide whether to add or not (because that is recipe for race conditions). 
 
If you really need this, you can override the persistent queue and provide your own queue where you can track job additions/removals. See the JobManager configuration WIKI for details:
 
https://github.com/yigit/android-priority-jobqueue/wiki/Job-Manager-Configuration
 
edit: An example race condition
 
Someone may write a code like this:
 
if (!jobManager.hasJobOfType(ImportantJob.class)) {
    jobManager.addJob(new ImportantJob());
} else {
    // it is already added, no need to re add
}
 
There is a potential race condition here where hasJobOfType returns true but meanwhile Job is about to be canceled. Now, there is no job to run :/. Another race condition is, somewhere else the code might have called addJobInBackground so it will be added but it is not yet added at the time of the hasJobOfType call.
 
The best solution for this kind of cases is to re-create another job in onCancel or manually handling the cancelation of previous jobs in onRun method (with a global counter etc). Another option is to use cancelAsync method with its callback version.
 
http://yigit.github.io/android-priority-jobqueue/javadoc/index.html