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From ga...@apache.org
Subject [10/27] hive git commit: HIVE-17733 Move RawStore to standalone metastore. This closes #258 github PR. (Alan Gates, reviewed by Sergey Shelukhin, Vihang Karajgaonkar, and Zoltan Haindrich)
Date Sat, 14 Oct 2017 14:42:47 GMT
http://git-wip-us.apache.org/repos/asf/hive/blob/133d3c47/standalone-metastore/src/main/java/org/apache/hadoop/hive/metastore/MetadataStore.java
----------------------------------------------------------------------
diff --git a/standalone-metastore/src/main/java/org/apache/hadoop/hive/metastore/MetadataStore.java
b/standalone-metastore/src/main/java/org/apache/hadoop/hive/metastore/MetadataStore.java
new file mode 100644
index 0000000..26e2c49
--- /dev/null
+++ b/standalone-metastore/src/main/java/org/apache/hadoop/hive/metastore/MetadataStore.java
@@ -0,0 +1,52 @@
+/*
+ * 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.hadoop.hive.metastore;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.util.List;
+
+public interface MetadataStore {
+  /**
+   * @param fileIds file ID list.
+   * @param result The ref parameter, used to return the serialized file metadata.
+   */
+  void getFileMetadata(List<Long> fileIds, ByteBuffer[] result) throws IOException;
+
+  /**
+   * @param fileIds file ID list.
+   * @param metadataBuffers Serialized file metadata, one per file ID.
+   * @param addedCols The column names for additional columns created by file-format-specific
+   *                  metadata handler, to be stored in the cache.
+   * @param addedVals The values for addedCols; one value per file ID per added column.
+   */
+  void storeFileMetadata(List<Long> fileIds, List<ByteBuffer> metadataBuffers,
+      ByteBuffer[] addedCols, ByteBuffer[][] addedVals) throws IOException, InterruptedException;
+
+  /**
+   * @param fileId The file ID.
+   * @param metadata Serialized file metadata.
+   * @param addedCols The column names for additional columns created by file-format-specific
+   *                  metadata handler, to be stored in the cache.
+   * @param addedVals The values for addedCols; one value per added column.
+   */
+  void storeFileMetadata(long fileId, ByteBuffer metadata, ByteBuffer[] addedCols,
+      ByteBuffer[] addedVals) throws IOException, InterruptedException;
+
+}
\ No newline at end of file


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