本文整理汇总了Java中org.apache.hadoop.hbase.HTableDescriptor.getFamiliesKeys方法的典型用法代码示例。如果您正苦于以下问题：Java HTableDescriptor.getFamiliesKeys方法的具体用法？Java HTableDescriptor.getFamiliesKeys怎么用？Java HTableDescriptor.getFamiliesKeys使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.hbase.HTableDescriptor的用法示例。
在下文中一共展示了HTableDescriptor.getFamiliesKeys方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: deleteFromFs
import org.apache.hadoop.hbase.HTableDescriptor; //导入方法依赖的package包/类
/**
* Removes from hdfs the families that are not longer present in the new table descriptor.
* @param env MasterProcedureEnv
* @throws IOException
*/
private void deleteFromFs(final MasterProcedureEnv env,
final HTableDescriptor oldHTableDescriptor, final HTableDescriptor newHTableDescriptor)
throws IOException {
final Set<byte[]> oldFamilies = oldHTableDescriptor.getFamiliesKeys();
final Set<byte[]> newFamilies = newHTableDescriptor.getFamiliesKeys();
for (byte[] familyName : oldFamilies) {
if (!newFamilies.contains(familyName)) {
MasterDDLOperationHelper.deleteColumnFamilyFromFileSystem(
env,
getTableName(),
getRegionInfoList(env),
familyName);
}
}
}
示例2: preCreateTable
import org.apache.hadoop.hbase.HTableDescriptor; //导入方法依赖的package包/类
@Override
public void preCreateTable(ObserverContext<MasterCoprocessorEnvironment> c,
HTableDescriptor desc, HRegionInfo[] regions) throws IOException {
Set<byte[]> families = desc.getFamiliesKeys();
Map<byte[], Set<byte[]>> familyMap = new TreeMap<byte[], Set<byte[]>>(Bytes.BYTES_COMPARATOR);
for (byte[] family: families) {
familyMap.put(family, null);
}
requireNamespacePermission("createTable", desc.getTableName().getNamespaceAsString(),
desc.getTableName(), familyMap, Action.CREATE);
}
示例3: verifyTableDescriptor
import org.apache.hadoop.hbase.HTableDescriptor; //导入方法依赖的package包/类
private void verifyTableDescriptor(final HTableDescriptor htd,
final TableName tableName, final byte[]... families) {
Set<byte[]> htdFamilies = htd.getFamiliesKeys();
assertEquals(tableName, htd.getTableName());
assertEquals(families.length, htdFamilies.size());
for (byte[] familyName: families) {
assertTrue("Expected family " + Bytes.toString(familyName), htdFamilies.contains(familyName));
}
}