List of openCursor() Examples

Examples of openCursor()

com.sleepycat.db.Database.openCursor()
Return a cursor into the database.
@param txn To use a cursor for writing to a transactional database, an explicit transaction must be specified. For read-only access to a transactional database, the transaction may be null. For a non-transactional database, the transaction must be null.
To transaction-protect cursor operations, cursors must be opened and closed within the context of a transaction, and the txn parameter specifies the transaction context in which the cursor will be used.
@param config The cursor attributes. If null, default attributes are used.
@return A database cursor.
@throws DatabaseException if a failure occurs.
com.sleepycat.je.Database.openCursor()
Returns a cursor into the database. @param txn the transaction used to protect all operations performed withthe cursor, or null if the operations should not be transaction protected. If the database is non-transactional, null must be specified. For a transactional database, the transaction is optional for read-only access and required for read-write access. @param cursorConfig The cursor attributes. If null, default attributesare used. @return A database cursor. @throws com.sleepycat.je.rep.DatabasePreemptedException in a replicatedenvironment if the master has truncated, removed or renamed the database. @throws OperationFailureException if this exception occurred earlier andcaused the transaction to be invalidated. @throws EnvironmentFailureException if an unexpected, internal orenvironment-wide failure occurs. @throws IllegalStateException if the database has been closed. @throws IllegalArgumentException if an invalid parameter is specified,for example, an invalid {@code CursorConfig} parameter.
com.sleepycat.je.SecondaryDatabase.openCursor()
Obtain a cursor on a database, returning a SecondaryCursor.
nexj.core.persistence.Query.openCursor()
Opens a cursor on the instances specified by the query. @return The cursor.

Examples of com.sleepycat.je.Database.openCursor()


                System.arraycopy(bytes, 0, cursorBytes, 0, bytes.length);


                cursorData.setPartial(true);


                cursor = blocks.openCursor(txn, null);


                if (cursor.getSearchKey(cursorKey, cursorData, null) != OperationStatus.NOTFOUND) {
                    cursor.delete();


                    while (cursor.getNextDup(cursorKey, cursorData, null) != OperationStatus.NOTFOUND) {

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Examples of com.sleepycat.je.Database.openCursor()

     * using this method.
     */
    db = dc.openDatabase("db", dbConfig);
    secDb = dc.openSecondaryDatabase("secDb", db, secDbConfig);
    System.out.println("blort");
    cursor = db.openCursor(null, null);
    cursor.put(new DatabaseEntry(key.getBytes()),
         new DatabaseEntry(data.getBytes()));
      } finally {
    if (cursor != null) {
        cursor.close();

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Examples of com.sleepycat.je.Database.openCursor()

     * Use JEConnection.openDatabase() to obtain a cached Database
     * handle.  Do not call close() on Database handles obtained
     * using this method.
     */
    db = dc.openDatabase("db", dbConfig);
    cursor = db.openCursor(null, null);
    DatabaseEntry data = new DatabaseEntry();
    cursor.getSearchKey(new DatabaseEntry(key.getBytes()),
            data,
            null);
    return new String(data.getData());

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Examples of com.sleepycat.je.Database.openCursor()


                System.arraycopy(bytes, 0, cursorBytes, 0, bytes.length);


                cursorData.setPartial(true);


                cursor = blocks.openCursor(txn, null);


                if (cursor.getSearchKey(cursorKey, cursorData, null) != OperationStatus.NOTFOUND) {
                    cursor.delete();
                    advance: while (cursor.getNext(cursorKey, cursorData, null) != OperationStatus.NOTFOUND) {
                        byte[] temp = cursorKey.getData();

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Examples of com.sleepycat.je.Database.openCursor()

                }
                txn.commit();
            }
        } else {
            /* retrieve the data */
            Cursor cursor = exampleDb.openCursor(null, null);


            while (cursor.getNext(keyEntry, dataEntry, LockMode.DEFAULT) ==
                   OperationStatus.SUCCESS) {
                System.out.println("key=" + 
                                   IntegerBinding.entryToInt(keyEntry) +

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Examples of com.sleepycat.je.Database.openCursor()

        Database versionDb = null;
        Cursor cursor = null;
        try
        {
            versionDb = _environment.openDatabase(null, Upgrader.VERSION_DB_NAME, dbConfig);
            cursor = versionDb.openCursor(null, null);
            DatabaseEntry key = new DatabaseEntry();
            DatabaseEntry value = new DatabaseEntry();
            while (cursor.getNext(key, value, null) == OperationStatus.SUCCESS)
            {
                int version = IntegerBinding.entryToInt(key);

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Examples of com.sleepycat.je.Database.openCursor()

        Database versionDb = null;
        Cursor cursor = null;
        try
        {
            versionDb = environment.openDatabase(null, Upgrader.VERSION_DB_NAME, dbConfig);
            cursor = versionDb.openCursor(null, null);
            DatabaseEntry key = new DatabaseEntry();
            DatabaseEntry value = new DatabaseEntry();
            while (cursor.getNext(key, value, null) == OperationStatus.SUCCESS)
            {
                int version = IntegerBinding.entryToInt(key);

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Examples of com.sleepycat.je.Database.openCursor()

        try {
            if (verbose) {
                System.out.println("Verifying VLSN index");
            }


            cursor = db.openCursor(null, CursorConfig.READ_COMMITTED);


            DatabaseEntry key = new DatabaseEntry();
            DatabaseEntry data = new DatabaseEntry();


            /*

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Examples of com.sleepycat.je.Database.openCursor()

    private static void preload(Environment env, String dbName)
        throws Exception {


        System.out.println("Preload starting");
        Database db = env.openDatabase(null, dbName, null);
        Cursor cursor = db.openCursor(null, null);
        try {
            DatabaseEntry key = new DatabaseEntry();
            DatabaseEntry data = new DatabaseEntry();
            int count = 0;
            while (cursor.getNext(key, data, LockMode.DEFAULT) ==

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Examples of com.sleepycat.je.Database.openCursor()

        }
        dupSort = db.getConfig().getSortedDuplicates();


        printHeader(outputFile, dupSort, formatUsingPrintable);


        Cursor cursor = db.openCursor(null, null);
        while (cursor.getNext(foundKey, foundData, LockMode.DEFAULT) ==
               OperationStatus.SUCCESS) {
            dumpOne(outputFile, foundKey.getData(), formatUsingPrintable);
            dumpOne(outputFile, foundData.getData(), formatUsingPrintable);
        }

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