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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
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 * 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
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package com.datatorrent.lib.db;

/**
 * This is the base implementation for a pass-through output adapter of a transactional key value store. 
 * This implementation provides the "exactly once" guarantee. 
 * A concrete operator should be created from this skeleton implementation.
 * 

* "Pass-through" means it does not wait for end window to write to the store. It will begin transaction at begin window and write to the store as the tuples * come and commit the transaction at end window. *

* @displayName Abstract Pass Through Transactionable Key Value Store Output * @category Outupt * @tags key value, transactional * * @param The tuple type * @param The store type * @since 0.9.3 */ @org.apache.hadoop.classification.InterfaceStability.Evolving public abstract class AbstractPassThruTransactionableKeyValueStoreOutputOperator extends AbstractPassThruTransactionableStoreOutputOperator { }




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