本文整理了Java中org.apache.flink.yarn.highavailability.YarnHighAvailabilityServices.enterUnlessClosed()方法的一些代码示例，展示了YarnHighAvailabilityServices.enterUnlessClosed()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。YarnHighAvailabilityServices.enterUnlessClosed()方法的具体详情如下：
包路径：org.apache.flink.yarn.highavailability.YarnHighAvailabilityServices
类名称：YarnHighAvailabilityServices
方法名：enterUnlessClosed

YarnHighAvailabilityServices.enterUnlessClosed介绍

[英]Acquires the lock and checks whether the services are already closed. If they are already closed, the method releases the lock and returns false.
[中]获取锁并检查服务是否已关闭。如果它们已经关闭，该方法将释放锁并返回false。

代码示例

代码示例来源：origin: apache/flink

/**
 * To be called at the beginning of every method that creates an HA service. Acquires the lock
 * and check whether this HighAvailabilityServices instance is shut down.
 */
void enter() {
  if (!enterUnlessClosed()) {
    throw new IllegalStateException("closed");
  }
}

代码示例来源：origin: org.apache.flink/flink-yarn_2.11

/**
 * To be called at the beginning of every method that creates an HA service. Acquires the lock
 * and check whether this HighAvailabilityServices instance is shut down.
 */
void enter() {
  if (!enterUnlessClosed()) {
    throw new IllegalStateException("closed");
  }
}

代码示例来源：origin: org.apache.flink/flink-yarn

/**
 * To be called at the beginning of every method that creates an HA service. Acquires the lock
 * and check whether this HighAvailabilityServices instance is shut down.
 */
void enter() {
  if (!enterUnlessClosed()) {
    throw new IllegalStateException("closed");
  }
}