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 package com.sleepycat.db;

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.
import  com.sleepycat.db.internal.Db;
import  com.sleepycat.db.internal.DbTxn;


This class is a hack to workaround the need to rewrite the entire org.apache.lucene.store.db package after Sleepycat radically changed its Java API from version 4.2.52 to version 4.3.21. The code below extracts the package-accessible internal handle instances that were the entrypoint objects in the pre-4.3 Java API and that wrap the actual Berkeley DB C objects via SWIG.
public class DbHandleExtractor {
    private DbHandleExtractor()
    {
    }
    static public Db getDb(Database database)
    {
        return database.db;
    }
    static public DbTxn getDbTxn(Transaction transaction)
    {
        return transaction.txn;
    }
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