本文整理了Java中org.apache.helix.manager.zk.ZKUtil.dropChildren()方法的一些代码示例，展示了ZKUtil.dropChildren()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。ZKUtil.dropChildren()方法的具体详情如下：
包路径：org.apache.helix.manager.zk.ZKUtil
类名称：ZKUtil
方法名：dropChildren

ZKUtil.dropChildren介绍

暂无

代码示例

代码示例来源：origin: org.apache.helix/helix-core

public static void dropChildren(ZkClient client, String parentPath, List<ZNRecord> list) {
 // TODO: check if parentPath exists
 if (list != null) {
  for (ZNRecord record : list) {
   dropChildren(client, parentPath, record);
  }
 }
}

代码示例来源：origin: apache/helix

public static void dropChildren(HelixZkClient client, String parentPath, List<ZNRecord> list) {
 // TODO: check if parentPath exists
 if (list != null) {
  for (ZNRecord record : list) {
   dropChildren(client, parentPath, record);
  }
 }
}

代码示例来源：origin: apache/helix

@Test()
public void testChildrenOperations() {
 List<ZNRecord> list = new ArrayList<ZNRecord>();
 list.add(new ZNRecord("id1"));
 list.add(new ZNRecord("id2"));
 String path = PropertyPathBuilder.instanceConfig(clusterName);
 ZKUtil.createChildren(_gZkClient, path, list);
 list = ZKUtil.getChildren(_gZkClient, path);
 AssertJUnit.assertEquals(2, list.size());
 ZKUtil.dropChildren(_gZkClient, path, list);
 ZKUtil.dropChildren(_gZkClient, path, new ZNRecord("id1"));
 list = ZKUtil.getChildren(_gZkClient, path);
 AssertJUnit.assertEquals(0, list.size());
 ZKUtil.dropChildren(_gZkClient, path, (List<ZNRecord>) null);
}

代码示例来源：origin: org.apache.helix/helix-core

@Override
public void dropInstance(String clusterName, InstanceConfig instanceConfig) {
 logger.info("Drop instance {} from cluster {}.", instanceConfig.getInstanceName(), clusterName);
 String instanceName = instanceConfig.getInstanceName();
 String instanceConfigPath = PropertyPathBuilder.instanceConfig(clusterName, instanceName);
 if (!_zkClient.exists(instanceConfigPath)) {
  throw new HelixException(
    "Node " + instanceName + " does not exist in config for cluster " + clusterName);
 }
 String instancePath = PropertyPathBuilder.instance(clusterName, instanceName);
 if (!_zkClient.exists(instancePath)) {
  throw new HelixException(
    "Node " + instanceName + " does not exist in instances for cluster " + clusterName);
 }
 String liveInstancePath = PropertyPathBuilder.liveInstance(clusterName, instanceName);
 if (_zkClient.exists(liveInstancePath)) {
  throw new HelixException(
    "Node " + instanceName + " is still alive for cluster " + clusterName + ", can't drop.");
 }
 // delete config path
 String instanceConfigsPath = PropertyPathBuilder.instanceConfig(clusterName);
 ZKUtil.dropChildren(_zkClient, instanceConfigsPath, instanceConfig.getRecord());
 // delete instance path
 _zkClient.deleteRecursively(instancePath);
}

代码示例来源：origin: apache/helix

@Override
public void dropInstance(String clusterName, InstanceConfig instanceConfig) {
 logger.info("Drop instance {} from cluster {}.", instanceConfig.getInstanceName(), clusterName);
 String instanceName = instanceConfig.getInstanceName();
 String instanceConfigPath = PropertyPathBuilder.instanceConfig(clusterName, instanceName);
 if (!_zkClient.exists(instanceConfigPath)) {
  throw new HelixException(
    "Node " + instanceName + " does not exist in config for cluster " + clusterName);
 }
 String instancePath = PropertyPathBuilder.instance(clusterName, instanceName);
 if (!_zkClient.exists(instancePath)) {
  throw new HelixException(
    "Node " + instanceName + " does not exist in instances for cluster " + clusterName);
 }
 String liveInstancePath = PropertyPathBuilder.liveInstance(clusterName, instanceName);
 if (_zkClient.exists(liveInstancePath)) {
  throw new HelixException(
    "Node " + instanceName + " is still alive for cluster " + clusterName + ", can't drop.");
 }
 // delete config path
 String instanceConfigsPath = PropertyPathBuilder.instanceConfig(clusterName);
 ZKUtil.dropChildren(_zkClient, instanceConfigsPath, instanceConfig.getRecord());
 // delete instance path
 _zkClient.deleteRecursively(instancePath);
}