Examples of jdbm.recman.TransactionManager

jdbm.recman.TransactionManager
This class manages the transaction log that belongs to every {@link RecordFile}. The transaction log is either clean, or in progress. In the latter case, the transaction manager takes care of a roll forward.
Implementation note: this is a proof-of-concept implementation which hasn't been optimized for speed. For instance, all sorts of streams are created for every transaction.


            // First, check if the file storing the data exists
            String path = partitionDir.getPath() + File.separator + "master";


            BaseRecordManager base = new BaseRecordManager( path );
            TransactionManager transactionManager = base.getTransactionManager();
            transactionManager.setMaximumTransactionsInLog( 2000 );


            if ( cacheSize < 0 )
            {
                cacheSize = DEFAULT_CACHE_SIZE;
                LOG.debug( "Using the default entry cache size of {} for {} partition", cacheSize, id );

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        String path = new File( this.wkDirPath, attributeType.getOid() ).getAbsolutePath();


        //System.out.println( "IDX Created index " + path )
        BaseRecordManager base = new BaseRecordManager( path );
        TransactionManager transactionManager = base.getTransactionManager();
        transactionManager.setMaximumTransactionsInLog( 2000 );


        recMan = new CacheRecordManager( base, new MRU( cacheSize ) );


        try
        {

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        }


        String path = new File( this.wkDirPath, attributeType.getOid() ).getAbsolutePath();


        BaseRecordManager base = new BaseRecordManager( path );
        TransactionManager transactionManager = base.getTransactionManager();
        transactionManager.setMaximumTransactionsInLog( 2000 );


        recMan = new CacheRecordManager( base, new MRU( DEFAULT_INDEX_CACHE_SIZE ) );


        try
        {

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            // First, check if the file storing the data exists
            String path = partitionDir.getPath() + File.separator + "master";


            BaseRecordManager base = new BaseRecordManager( path );
            TransactionManager transactionManager = base.getTransactionManager();
            transactionManager.setMaximumTransactionsInLog( 2000 );


            if ( cacheSize < 0 )
            {
                cacheSize = DEFAULT_CACHE_SIZE;
                LOG.debug( "Using the default entry cache size of {} for {} partition", cacheSize, id );

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