content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.arrow.adapter.orc;
  
  /** JNI wrapper for orc stripe reader. */
  class OrcStripeReaderJniWrapper {
  
    /**
     * Get the schema of current stripe.
     *
     * @param readerId id of the stripe reader instance.
     * @return serialized schema.
     */
    static native byte[] getSchema(long readerId);
  
    /**
     * Load next record batch.
     *
     * @param readerId id of the stripe reader instance.
     * @return loaded record batch, return null when reached the end of current stripe.
     */
    static native OrcRecordBatch next(long readerId);
  
    /**
     * Release resources of underlying reader.
     *
     * @param readerId id of the stripe reader instance.
     */
    static native void close(long readerId);
  }
  