Package org.iq80.leveldb

Examples of org.iq80.leveldb.DBIterator.seekToFirst()

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            throw new PersistenceException("LevelDB is stopped");
         }
         DBIterator it = db.iterator(new ReadOptions().fillCache(false));
         if (configuration.clearThreshold() <= 0) {
            try {
               for (it.seekToFirst(); it.hasNext(); ) {
                  Map.Entry<byte[], byte[]> entry = it.next();
                  db.delete(entry.getKey());
                  count++;

                  if (count > configuration.clearThreshold()) {
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         if (stopped) {
            throw new PersistenceException("LevelDB is stopped");
         }
         DBIterator it = db.iterator(new ReadOptions().fillCache(false));
         try {
            for (it.seekToFirst(); it.hasNext(); ) {
               Map.Entry<byte[], byte[]> entry = it.next();
               entries.add(entry);
               if (entries.size() == batchSize) {
                  final List<Map.Entry<byte[], byte[]>> batch = entries;
                  entries = new ArrayList<Map.Entry<byte[], byte[]>>(batchSize);
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         List<Long> times = new ArrayList<Long>();
         List<Object> keys = new ArrayList<Object>();
         DBIterator it = expiredDb.iterator(new ReadOptions().fillCache(false));
         long now = ctx.getTimeService().wallClockTime();
         try {
            for (it.seekToFirst(); it.hasNext();) {
               Map.Entry<byte[], byte[]> entry = it.next();

               Long time = (Long) unmarshall(entry.getKey());
               if (time > now)
                  break;
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      DBIterator it = db.iterator(new ReadOptions().fillCache(false));
      boolean destroyDatabase = false;

      if (configuration.clearThreshold() <= 0) {
         try {
            for (it.seekToFirst(); it.hasNext();) {
               Map.Entry<byte[], byte[]> entry = it.next();
               db.delete(entry.getKey());
               count++;

               if (count > configuration.clearThreshold()) {
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      final TaskContext taskContext = new TaskContextImpl();

      List<Map.Entry<byte[], byte[]>> entries = new ArrayList<Map.Entry<byte[], byte[]>>(batchSize);
      DBIterator it = db.iterator(new ReadOptions().fillCache(false));
      try {
         for (it.seekToFirst(); it.hasNext();) {
            Map.Entry<byte[], byte[]> entry = it.next();
            entries.add(entry);
            if (entries.size() == batchSize) {
               final List<Map.Entry<byte[], byte[]>> batch = entries;
               entries = new ArrayList<Map.Entry<byte[], byte[]>>(batchSize);
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         List<Long> times = new ArrayList<Long>();
         List<Object> keys = new ArrayList<Object>();
         DBIterator it = expiredDb.iterator(new ReadOptions().fillCache(false));
         try {
            for (it.seekToFirst(); it.hasNext();) {
               Map.Entry<byte[], byte[]> entry = it.next();

               Long time = (Long) unmarshall(entry.getKey());
               if (time > System.currentTimeMillis())
                  break;
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      DBIterator it = db.iterator(new ReadOptions().fillCache(false));
      boolean destroyDatabase = false;

      if (configuration.clearThreshold() <= 0) {
         try {
            for (it.seekToFirst(); it.hasNext();) {
               Map.Entry<byte[], byte[]> entry = it.next();
               db.delete(entry.getKey());
               count++;

               if (count > configuration.clearThreshold()) {
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      final TaskContext taskContext = new TaskContextImpl();

      List<Map.Entry<byte[], byte[]>> entries = new ArrayList<Map.Entry<byte[], byte[]>>(batchSize);
      DBIterator it = db.iterator(new ReadOptions().fillCache(false));
      try {
         for (it.seekToFirst(); it.hasNext();) {
            Map.Entry<byte[], byte[]> entry = it.next();
            entries.add(entry);
            if (entries.size() == batchSize) {
               final List<Map.Entry<byte[], byte[]>> batch = entries;
               entries = new ArrayList<Map.Entry<byte[], byte[]>>(batchSize);
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         List<Long> times = new ArrayList<Long>();
         List<Object> keys = new ArrayList<Object>();
         DBIterator it = expiredDb.iterator(new ReadOptions().fillCache(false));
         try {
            for (it.seekToFirst(); it.hasNext();) {
               Map.Entry<byte[], byte[]> entry = it.next();

               Long time = (Long) unmarshall(entry.getKey());
               if (time > System.currentTimeMillis())
                  break;
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                        throws ReceiverThrowableType, IOException
                    {
                        DBIterator iterator = db.iterator();
                        try
                        {
                            for( iterator.seekToFirst(); iterator.hasNext(); iterator.next() )
                            {
                                byte[] state = iterator.peekNext().getValue();
                                String jsonState = new String( state, charset );
                                receiver.receive( new StringReader( jsonState ) );
                            }
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