Examples of com.sleepycat.je.Cursor$KeyChangeStatus

com.sleepycat.je.Cursor
Holder for an OperationStatus and a keyChange flag. Is used for search.

     * All rep group db access uses cursors with eviction disabled.
     */
    static private Cursor makeCursor(DatabaseImpl dbImpl,
                                     Txn txn,
                                     CursorConfig cursorConfig) {
        Cursor cursor = DbInternal.makeCursor(dbImpl,
                                              txn,
                                              cursorConfig);
        DbInternal.getCursorImpl(cursor).setAllowEviction(false);
        return cursor;
    }

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        Map <Integer, RepNodeImpl> nodes =
            new HashMap<Integer, RepNodeImpl>();
        final CursorConfig cursorConfig = new CursorConfig();
        cursorConfig.setReadCommitted(true);


        Cursor mcursor = null;


        try {
            mcursor = makeCursor(dbImpl, txn, cursorConfig);
            while (mcursor.getNext(keyEntry, value, LockMode.DEFAULT) ==
                   OperationStatus.SUCCESS) {


                final String key = StringBinding.entryToString(keyEntry);


                if (GROUP_KEY.equals(key)) {
                    group = groupBinding.entryToObject(value);
                    if (!group.getName().equals(groupName)) {
                        throw EnvironmentFailureException.unexpectedState
                            ("The argument: " + groupName +
                             " does not match the expected group name: " +
                             group.getName());
                    }
                } else {
                    final RepNodeImpl mi = miBinding.entryToObject(value);
                    nodes.put(mi.getNameIdPair().getId(), mi);
                }
            }
            if (group == null) {
                throw EnvironmentFailureException.unexpectedState
                    ("Group key: " + GROUP_KEY + " is missing");
            }
            group.setNodes(nodes);
            return group;
        } finally {
            if (mcursor != null) {
                mcursor.close();
            }
        }
    }

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        /* Create the common group entry. */
        TransactionConfig txnConfig = new TransactionConfig();
        txnConfig.setDurability(NO_ACK.getDurability());
        txnConfig.setConsistencyPolicy(NO_CONSISTENCY);
        Txn txn = null;
        Cursor cursor = null;
        try {
            txn = new MasterTxn(repImpl,
                                txnConfig,
                                repImpl.getNameIdPair());


            cursor = makeCursor(groupDbImpl, txn, CursorConfig.DEFAULT);
            OperationStatus status = cursor.put(groupKeyEntry, groupEntry);
            if (status != OperationStatus.SUCCESS) {
                throw EnvironmentFailureException.unexpectedState
                    ("Couldn't write first group entry " + status);
            }
            cursor.close();
            cursor = null;
            txn.commit();
            txn = null;
        } finally {
            if (cursor != null) {
                cursor.close();
            }


            if (txn != null) {
                txn.abort();
            }

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        DatabaseEntry value = new DatabaseEntry();
        final RepGroupDB.NodeBinding mib = new RepGroupDB.NodeBinding();


        Txn txn = null;
        Cursor cursor = null;
        try {
            txn = new ReadonlyTxn(repImpl, NO_ACK);
            CursorConfig config = new CursorConfig();
            config.setReadCommitted(true);
            cursor = makeCursor(groupDbImpl, txn, config);


            OperationStatus status =
                cursor.getSearchKey(nodeNameKey, value, null);
            if (status == OperationStatus.SUCCESS) {
                /* Let's see if the entry needs updating. */
                RepNodeImpl miInDb = mib.entryToObject(value);
                if (miInDb.equivalent(ensureNode)) {
                    if (miInDb.isQuorumAck()) {
                        /* Present, matched and acknowledged. */
                        return;
                    }
                    ensureNode.getNameIdPair().update(miInDb.getNameIdPair());
                    /* Not acknowledged, retry the update. */
                } else {
                    /* Present but not equivalent. */
                    LoggerUtils.warning(logger, repImpl,
                                        "Incompatible node descriptions. " +
                                        "Membership database definition: " +
                                        miInDb.toString() +
                                        " Transient definition: " +
                                        ensureNode.toString());
                    throw EnvironmentFailureException.unexpectedState
                        ("Incompatible node descriptions for node ID: " +
                         ensureNode.getNodeId());
                }
                LoggerUtils.info(logger, repImpl,
                                 "Present but not ack'd node: " +
                                 ensureNode.getNodeId() +
                                 " ack status: " + miInDb.isQuorumAck());
            }
            cursor.close();
            cursor = null;
            txn.commit();
            txn = null;
        } finally {
            if (cursor != null) {
                cursor.close();
            }


            if (txn != null) {
                txn.abort();
            }

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        final RepGroupDB.NodeBinding mib = new RepGroupDB.NodeBinding();
        final RepGroupImpl.BarrierState barrierState =
            new RepGroupImpl.BarrierState(newCBVLSN,
                                          System.currentTimeMillis());
        Txn txn = null;
        Cursor cursor = null;
        boolean ok = false;
        try {
            txn = new MasterTxn(repImpl,
                                NO_ACK_NO_SYNC,
                                repImpl.getNameIdPair());
            cursor = makeCursor(groupDbImpl, txn, CursorConfig.DEFAULT);


            OperationStatus status =
                    cursor.getSearchKey(nodeNameKey, value, LockMode.RMW);
            if (status != OperationStatus.SUCCESS) {
                throw EnvironmentFailureException.unexpectedState
                    ("Node ID: " + nameIdPair + " not present in group db");
            }


            /* Let's see if the entry needs updating. */
            RepNodeImpl node = mib.entryToObject(value);
            final VLSN lastCBVLSN = node.getBarrierState().getLastCBVLSN();
            if (lastCBVLSN.equals(newCBVLSN)) {
                ok = true;
                return true;
            }


            node.setBarrierState(barrierState);
            mib.objectToEntry(node, value);
            status = cursor.putCurrent(value);
            if (status != OperationStatus.SUCCESS) {
                throw EnvironmentFailureException.unexpectedState
                    ("Node ID: " + nameIdPair +
                     " stored localCBVLSN could not be updated. Status: " +
                     status);
            }
            LoggerUtils.fine(logger, repImpl,
                             "Local CBVLSN updated to " + newCBVLSN +
                             " for node " + nameIdPair);
            ok = true;
        } finally {
            if (cursor != null) {
                cursor.close();
            }


            if (txn != null) {
                if (ok) {
                    txn.commit(NO_ACK_NO_SYNC_DURABILITY);

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        throws DatabaseException {


        RepGroupDB.GroupBinding groupBinding = new RepGroupDB.GroupBinding();
        DatabaseEntry groupEntry = new DatabaseEntry();


        Cursor cursor = null;
        try {
            cursor = makeCursor(groupDbImpl, txn, CursorConfig.DEFAULT);


            OperationStatus status = cursor.getSearchKey(groupKeyEntry,
                                                         groupEntry,
                                                         LockMode.RMW);
            if (status != OperationStatus.SUCCESS) {
                throw EnvironmentFailureException.unexpectedState
                    ("Group entry key: " + GROUP_KEY +
                     " missing from group database");
            }
        } finally {
            if (cursor != null) {
                cursor.close();
            }
        }


        return groupBinding.entryToObject(groupEntry);
    }

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        RepGroupDB.GroupBinding groupBinding = new RepGroupDB.GroupBinding();
        DatabaseEntry groupEntry = new DatabaseEntry();
        groupBinding.objectToEntry(repGroup, groupEntry);


        Cursor cursor = null;
        try {
            cursor = makeCursor(groupDbImpl, txn, CursorConfig.DEFAULT);


            OperationStatus status =  cursor.put(groupKeyEntry, groupEntry);
            if (status != OperationStatus.SUCCESS) {
                throw EnvironmentFailureException.unexpectedState
                    ("Group entry save failed");
            }
        } finally {
            if (cursor != null) {
                cursor.close();
            }
        }
    }

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        final RepGroupDB.NodeBinding nodeBinding =
            new RepGroupDB.NodeBinding();
        DatabaseEntry memberInfoEntry = new DatabaseEntry();
        nodeBinding.objectToEntry(node, memberInfoEntry);


        Cursor cursor = null;
        try {
            cursor = makeCursor(groupDbImpl, txn, CursorConfig.DEFAULT);


            OperationStatus status =  cursor.put(nodeNameKey, memberInfoEntry);
            if (status != OperationStatus.SUCCESS) {
                throw EnvironmentFailureException.unexpectedState
                    ("Group entry save failed");
            }
        } finally {
            if (cursor != null) {
                cursor.close();
            }
        }
    }

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        txn = new MasterTxn(repImpl, txnConfig, nameIdPair);


        final CursorConfig cursorConfig = new CursorConfig();
        cursorConfig.setReadCommitted(true);
        Cursor mcursor = makeCursor(dbImpl, txn, cursorConfig);


        while (mcursor.getNext(keyEntry, value, LockMode.DEFAULT) ==
               OperationStatus.SUCCESS) {
            final String key = StringBinding.entryToString(keyEntry);


            if (GROUP_KEY.equals(key)) {
                GroupBinding groupBinding = new GroupBinding();
                RepGroupImpl repGroup = new RepGroupImpl(groupName);
                repGroup.setNodeIdSequence(nodeIdSequenceStart);
                DatabaseEntry groupEntry = new DatabaseEntry();
                groupBinding.objectToEntry(repGroup, groupEntry);
                OperationStatus status = mcursor.putCurrent(groupEntry);
                if (!OperationStatus.SUCCESS.equals(status)) {
                    throw new IllegalStateException("Unexpected state:" +
                                                    status);
                }
            } else {
                LoggerUtils.info(logger, repImpl, "Removing node: " + key);
                mcursor.delete();
            }
        }
        mcursor.close();
        txn.commit();


        /* Now add the first node of the new group. */
        ensureMember(firstNode);
        if (firstNodeId != firstNode.getNodeId()) {

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                DbCompat.setWriteCursor(cdbConfig, true);
            } else {
                cursors = cdbCursors.readCursors;
                cdbConfig = null;
            }
            Cursor cursor;
            if (cursors.size() > 0) {
                Cursor other = ((Cursor) cursors.get(0));
                cursor = other.dup(false);
            } else {
                cursor = db.openCursor(null, cdbConfig);
            }
            cursors.add(cursor);
            return cursor;

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