Examples of com.sleepycat.je.tree.BINReference

com.sleepycat.je.tree.BINReference
A class that embodies a reference to a BIN that does not rely on a Java reference to the actual BIN.

        Map<DatabaseId, DatabaseImpl> dbCache =
            new HashMap<DatabaseId, DatabaseImpl>();
        try {
            Iterator<BINReference> it = queueSnapshot.iterator();
            while (it.hasNext()) {
                BINReference binRef = it.next();
                DatabaseImpl db = dbTree.getDb
                    (binRef.getDatabaseId(), lockTimeout, dbCache);
                BIN bin = searchForBIN(db, binRef);
                if (bin != null) {
                    bin.verifyCursors();
                    bin.releaseLatch();
                }

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    public void addMultipleBinRefsToQueue(Collection<BINReference> binRefs,
                                          boolean doWakeup) {
        synchronized (binRefQueueSync) {
            Iterator<BINReference> it = binRefs.iterator();
            while (it.hasNext()) {
                BINReference binRef = it.next();
                addBinRefToQueueAlreadyLatched(binRef);
            }
        }


        if (doWakeup) {

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                while (it.hasNext()) {
                    if (env.isClosed()) {
                        return;
                    }


                    BINReference binRef = it.next();
                    if (!findDBAndBIN(binSearch, binRef, dbTree, dbCache)) {


                        /*
                         * Either the db is closed, or the BIN doesn't exist.
                         * Don't process this BINReference.

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      queueSnapshot = new ArrayList(binRefQueue.values());
        }


  Iterator it = queueSnapshot.iterator();
  while (it.hasNext()) {
      BINReference binRef = (BINReference) it.next();
            DatabaseImpl db =
    env.getDbMapTree().getDb(binRef.getDatabaseId(), lockTimeout);
      BIN bin = searchForBIN(db, binRef);
      if (bin != null) {
    bin.verifyCursors();
    bin.releaseLatch();
      }

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  throws DatabaseException {


  synchronized (binRefQueueSync) {
            Iterator it = binRefs.iterator();
            while (it.hasNext()) {
                BINReference binRef = (BINReference) it.next();
                addBinRefToQueueAlreadyLatched(binRef);
            }
        }
        
        if (doWakeup) {

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     * Adds the BINReference with the latch held.
     */
    private void addBinRefToQueueAlreadyLatched(BINReference binRef) {


        Long node = new Long(binRef.getNodeId());
        BINReference existingRef = (BINReference) binRefQueue.get(node);
        if (existingRef != null) {
            existingRef.addDeletedKeys(binRef);
        } else {
            binRefQueue.put(node, binRef);
        }
    }

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     * Adds the BIN and deleted Key with the latch held.
     */
    private void addBinKeyToQueueAlreadyLatched(BIN bin, Key deletedKey) {


        Long node = new Long(bin.getNodeId());
        BINReference existingRef = (BINReference) binRefQueue.get(node);
        if (existingRef != null) {
            if (deletedKey != null) {
                existingRef.addDeletedKey(deletedKey);
            }
        } else {
            BINReference binRef = bin.createReference();
            if (deletedKey != null) {
                binRef.addDeletedKey(deletedKey);
            }
            binRefQueue.put(node, binRef);
        }
    }

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     * Return a bin reference for this node if it exists and has a set of
     * deletable keys.
     */
    private BINReference removeCompressibleBinReference(long nodeId) {
        Long node = new Long(nodeId);
        BINReference foundRef = null;
        synchronized (binRefQueueSync) {
            BINReference target = (BINReference) binRefQueue.remove(node);
            if (target != null) {
                if (target.deletedKeysExist()) {
                    foundRef = target;
                } else {


                    /* 
                     * This is an entry that needs to be pruned. Put it back

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                while (it.hasNext()) {
                    if (env.isClosed()) {
                        return;
                    }


                    BINReference binRef = (BINReference) it.next();
                    if (!findDBAndBIN(binSearch, binRef, dbTree)) {


                        /* 
                         * Either the db is closed, or the BIN doesn't
                         * exist. Don't process this BINReference.
                         */
                        continue;
                    }
                    
                    if (binRef.deletedKeysExist()) {
                        /* Compress deleted slots. */
                        boolean requeued = compressBin
                            (binSearch.db, binSearch.bin, binRef, tracker);


                        if (!requeued) {

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            /* Maintain only one binRef per node. */
            if (deleteInfo == null) {
                deleteInfo = new HashMap();
            }
            Long nodeId = new Long(bin.getNodeId());
            BINReference binRef = (BINReference) deleteInfo.get(nodeId);
            if (binRef == null) {
                binRef = bin.createReference();
                deleteInfo.put(nodeId, binRef);  
            }
            binRef.addDeletedKey(deletedKey);
        }
    }

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