import quincy 17.2.0

[ceph.git] / ceph / src / arrow / java / adapter / orc / src / main / java / org / apache / arrow / adapter / orc / OrcStripeReaderJniWrapper.java

diff --git a/ceph/src/arrow/java/adapter/orc/src/main/java/org/apache/arrow/adapter/orc/OrcStripeReaderJniWrapper.java b/ceph/src/arrow/java/adapter/orc/src/main/java/org/apache/arrow/adapter/orc/OrcStripeReaderJniWrapper.java
new file mode 100644 (file)
index 0000000..1dd9698
--- /dev/null
+++ b/ceph/src/arrow/java/adapter/orc/src/main/java/org/apache/arrow/adapter/orc/OrcStripeReaderJniWrapper.java
@@ -0,0 +1,45 @@
+/*
+ * 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);
+}