Author: rding Date: Wed Jan 20 20:59:46 2010 New Revision: 901380 URL: http://svn.apache.org/viewvc?rev=901380&view=rev Log: PIG-1090: Update sources to reflect recent changes in load-store interfaces
Added: hadoop/pig/branches/load-store-redesign/src/org/apache/pig/StoreMetadata.java Added: hadoop/pig/branches/load-store-redesign/src/org/apache/pig/StoreMetadata.java URL: http://svn.apache.org/viewvc/hadoop/pig/branches/load-store-redesign/src/org/apache/pig/StoreMetadata.java?rev=901380&view=auto ============================================================================== --- hadoop/pig/branches/load-store-redesign/src/org/apache/pig/StoreMetadata.java (added) +++ hadoop/pig/branches/load-store-redesign/src/org/apache/pig/StoreMetadata.java Wed Jan 20 20:59:46 2010 @@ -0,0 +1,48 @@ +/* + * 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.pig; + +import java.io.IOException; + +import org.apache.hadoop.conf.Configuration; +import org.apache.pig.ResourceSchema; +import org.apache.pig.ResourceStatistics; + +/** + * This interface defines how to write metadata related to data to be loaded. + * If a given store function does not implement this interface, it will be assumed that it + * is unable to record metadata about the associated data. + */ + +public interface StoreMetadata { + + /** + * Store statistics about the data being written. + * + * @throws IOException + */ + void storeStatistics(ResourceStatistics stats, String location, Configuration conf) throws IOException; + + /** + * Store schema of the data being written + * + * @throws IOException + */ + void storeSchema(ResourceSchema schema, String location, Configuration conf) throws IOException; +}