@Override
  public void deleteTable(ByteBuffer in_tableName) throws IOError {
    TableName tableName = getTableName(in_tableName);
    if (LOG.isDebugEnabled()) {
      LOG.debug("deleteTable: table={}", tableName);
    }
    try {
      if (!getAdmin().tableExists(tableName)) {
        throw new IOException("table does not exist");
      }
      getAdmin().deleteTable(tableName);
    } catch (IOException e) {
      LOG.warn(e.getMessage(), e);
      throw getIOError(e);
    }
  }
Note: this internal interface is slightly different from public APIs in regard to handling of
the qualifier. Here we differ from the public Java API in that null != byte[0]. Rather, we
respect qual == null as a request for the entire column family. The caller (
{@link #getVerTs(ByteBuffer, ByteBuffer, ByteBuffer, long, int, Map)}) interface IS consistent
in that the column is parse like normal.
hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/ThriftHBaseServiceHandler.java