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

org.iq80.leveldb.DBIterator.seekToFirst()
Repositions the iterator so is is at the beginning of the Database.


         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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    public void purge(DB aDatabase) {


        DBIterator iterator = aDatabase.iterator();


        try {
            iterator.seekToFirst();


            while (iterator.hasNext()) {
                Entry<byte[],byte[]> entry = iterator.next();


                aDatabase.delete(entry.getKey());

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    private boolean requiresRepair() {
        boolean requiresRepair = false;


        DBIterator iterator = this.database().iterator();


        iterator.seekToFirst();


        if (iterator.hasNext()) {
            requiresRepair = true;


            Entry<byte[],byte[]> entry = iterator.next();

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    public void purge() {


        DBIterator iterator = this.database().iterator();


        try {
            iterator.seekToFirst();


            while (iterator.hasNext()) {
                Entry<byte[],byte[]> entry = iterator.next();


                this.database().delete(entry.getKey());

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        //   Would Snapshot make sense here?
        StorableKey key = null;
        try {
            DBIterator iter = _store.iterator();
            try {
                iter.seekToFirst();


                while (iter.hasNext()) {
                    Map.Entry<byte[], byte[]> entry = iter.next();
                    key = _storableKey(entry.getKey());
                    byte[] b = key.asBytes();

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