protected TableDescriptor getDescriptor() {
    if (TABLE_DESCRIPTOR == null) {
      TABLE_DESCRIPTOR =
        TableDescriptorBuilder.newBuilder(tableName)
          .setColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(FAMILY_NAME)
            .setDataBlockEncoding(blockEncoding).setCompressionType(compression)
            .setInMemory(inMemoryCF).build())
          .build();
    }
    return TABLE_DESCRIPTOR;
  }
If table does not already exist, create.
@param admin Client to use checking.
@return True if we created the table.
@throws IOException if an operation on the table fails
hbase-rest/src/test/java/org/apache/hadoop/hbase/rest/PerformanceEvaluation.java