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()

        DatabaseConfig dbConfig = new DatabaseConfig();
        dbConfig.setAllowCreate(true);
        Database myDb = exampleEnv.openDatabase(null, "fooDb", dbConfig);


        /* Open uninitialized cursor. */
        Cursor c1 = myDb.openCursor(null, null);
        try {
            c1.getCurrent(new DatabaseEntry(), new DatabaseEntry(), null);
            fail();
        } catch (DatabaseException expected) {}

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

        DatabaseConfig dbConfig = new DatabaseConfig();
        dbConfig.setAllowCreate(false);
        dbConfig.setReadOnly(true);
        dbConfig.setSortedDuplicates(true);
        Database db = env.openDatabase(null, "db1", dbConfig);
        Cursor cursor = db.openCursor(null, null);
        DatabaseEntry key = new DatabaseEntry();
        DatabaseEntry data = new DatabaseEntry();
        OperationStatus status = cursor.getFirst(key, data, null);
        assertEquals(OperationStatus.SUCCESS, status);
        assertEquals(3, value(key));

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


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

        Database db = env.openDatabase(null, dbName, dbConfig);
  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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Examples of com.sleepycat.je.Database.openCursor()

            txn.abort();


            /*
             * The database should be empty
             */
            Cursor cursor = dbSpoiler.openCursor(txnSpoiler, null);
            
            assertTrue(cursor.getFirst(keyDbt, dataDbt, LockMode.DEFAULT) != 
                       OperationStatus.SUCCESS);
            cursor.close();
            txnSpoiler.abort();

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


        env = new Environment(envHome, envConfig);
        Database db = env.openDatabase(null, dbName, dbConfig);
        found = new HashSet();


        Cursor cursor = db.openCursor(null, null);
        DatabaseEntry key = new DatabaseEntry();
        DatabaseEntry data = new DatabaseEntry();


        int i = 0;
        try {

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

      assertEquals(OperationStatus.SUCCESS, db.put(null, key, data));
  }


  data.setData("d1".getBytes());


  Cursor c = db.openCursor(null, null);
  assertEquals(OperationStatus.SUCCESS,
         c.getFirst(key, data, LockMode.DEFAULT));


  c.close();
  db.close();

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

        
        /* Force an abrupt close so there is no checkpoint at the end. */
        closeEnv();
        env = new Environment(envHome, envConfig);
  db = env.openDatabase(null, "testSR8984db", dbConfig);
  c = db.openCursor(null, null);
  assertEquals(OperationStatus.SUCCESS,
         c.getFirst(key, data, LockMode.DEFAULT));
  assertEquals(NUM_EXTRA_DUPS - 2, c.count());
  c.close();
  db.close();

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


        env = new Environment(envHome, recoveryConfig);
  dbConfig.setAllowCreate(false);
  dbConfig.setTransactional(false);
  Database db2 = env.openDatabase(null, "foo", dbConfig);
  Cursor c = db2.openCursor(null, null);
  DatabaseEntry key = new DatabaseEntry();
  DatabaseEntry data = new DatabaseEntry();
  assertEquals(OperationStatus.SUCCESS,
         c.getNext(key, data, LockMode.DEFAULT));
  assertEquals((key.getData())[0], 1);

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

            DbInternal.setUseExistingConfig(dbConfig, true);
            Database db = envHandle.openDatabase(null, dbName, dbConfig);


            DatabaseEntry foundData = new DatabaseEntry();
            if (dumpAll) {
                Cursor cursor = db.openCursor(null, null);
                DatabaseEntry foundKey = new DatabaseEntry();
                int i = 0;
                while (cursor.getNext(foundKey, foundData,
                                      LockMode.DEFAULT) == OperationStatus.SUCCESS) {
                    System.out.println(i + ":key=" +

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