Examples of Mongo

co.ohba.autumn.AutumnConfig.Mongo
com.massivecraft.mcore.xlib.mongodb.Mongo
ongodb.org/display/DOCS/Replica+Sets">replica set using the Java driver by passing a ServerAddress list to the Mongo constructor. For example:
```
 Mongo mongo = new Mongo(Arrays.asList( new ServerAddress("localhost", 27017), new ServerAddress("localhost", 27018), new ServerAddress("localhost", 27019))); 
```
You can connect to a sharded cluster using the same constructor. Mongo will auto-detect whether the servers are a list of replica set members or a list of mongos servers.
By default, all read and write operations will be made on the primary, but it's possible to read from secondaries by changing the read preference:
```
 mongo.setReadPreference(ReadPreference.secondary()); 
```
By default, write operations will not throw exceptions on failure, but that is easily changed too:
```
 mongo.setWriteConcern(WriteConcern.SAFE); 
```
Note: This class has been superseded by {@code MongoClient}, and may be deprecated in a future release. @see MongoClient @see ReadPreference @see WriteConcern
com.mongodb.Mongo
ongodb.org/display/DOCS/Java+Driver+Concurrency
Connecting to a Replica Pair

You can connect to a replica pair using the Java driver by passing two DBAddresses to the Mongo constructor. For example:
```
 DBAddress left = new DBAddress("127.0.0.1:27017/test"); DBAddress right = new DBAddress("127.0.0.1:27018/test"); Mongo mongo = new Mongo(left, right); 
```
If the master of a replica pair goes down, there will be a brief lag before the slave becomes master. Thus, your application should be prepared to catch the exceptions that might be thrown in such a case: IllegalArgumentException, MongoException, and MongoException.Network (depending on when the connection drops).

Once the slave becomes master, the driver will begin using that connection as the master connection and the exceptions will stop being thrown.

Connecting to a Replica Set

You can connect to a replica set using the Java driver by passing several a list if ServerAddress to the Mongo constructor. For example:
```
 List addrs = new ArrayList(); addrs.add( new ServerAddress( "127.0.0.1" , 27017 ) ); addrs.add( new ServerAddress( "127.0.0.1" , 27018 ) ); addrs.add( new ServerAddress( "127.0.0.1" , 27019 ) ); Mongo mongo = new Mongo( addrs ); 
```
By default, all read and write operations will be made on the master. But it's possible to read from the slave(s) by using slaveOk:
```
 mongo.slaveOk(); 
```

Examples of com.mongodb.Mongo

        ManagedService service = (ManagedService) context.getService(serviceRef);
        try
        {
            service.updated(null);


            Mongo mongo = new Mongo();
            DB db = mongo.getDB("ua_repo");
            DBCollection collection = db.getCollection("useradmin");
            // we always get a collection back, regardless if there is an actual MongoDB listening, hence we should do
            // some actual calls that cause a connection to MongoDB to be created...
            collection.remove(new BasicDBObject(), WriteConcern.SAFE);

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Examples of com.mongodb.Mongo

    }


    @Provides
    Mongo create(final Application application) {
        try {
            return new Mongo(new MongoURI(application.configuration().getString("mongodb.uri")));
        } catch (UnknownHostException e) {
            addError(e);
            return null;
        }
    }

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Examples of com.mongodb.Mongo

    private DBCollection _collection;


    @Override
    public void start() {
        try {
            _mongo = new Mongo(_dbHost, _dbPort);
            DB db = _mongo.getDB(_dbName);
            _collection = db.getCollection(super.getName());
        } catch (Exception e) {
            addStatus(new ErrorStatus("Failed to initialize MondoDB", this, e));
            return;

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Examples of com.mongodb.Mongo

  public Mongo getMongo() {
    MongoInstance mongoInstance = MeclipsePlugin.getDefault()
        .getMongoInstance(this.getName());
    Exception ex;
    if (mongoInstance.getMongo() == null) {
      Mongo mongo;
      try {
        mongo = new Mongo(mongoInstance.getHost(),
            mongoInstance.getPort());
        mongo.getDatabaseNames();
        mongoInstance.setMongo(mongo); // add the active Mongo instance
                        // to the plug-in's state
        isDown = false;
        return mongo;
        /* catch some possible exceptions */

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Examples of com.mongodb.Mongo

  }


  @Override
  public TreeObject[] getChildren() {
    List<Database> children = new ArrayList<Database>();
    Mongo mongo = getMongo();
    if (mongo != null) {
      try {
        for (String name : mongo.getDatabaseNames()) {
          Database database = new Database(name);
          database.setParent(this);
          database.setViewer(view);
          children.add(database);
        }

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Examples of com.mongodb.Mongo


    @Override
    protected void setUp() throws Exception {
        super.setUp();
        if (isConfigured()) {
            Mongo mongo = new Mongo(getHostname());
            db = mongo.getDB(getDatabaseName());
        }
    }

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Examples of com.mongodb.Mongo

        Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
        Connection connection = DriverManager.getConnection("jdbc:derby:jar:(" + dbFile.getAbsolutePath()
                + ")derby_testdb;territory=en");
        connection.setReadOnly(true);


        DB db = new Mongo().getDB("orderdb_copy");


        DataContext sourceDataContext = new JdbcDataContext(connection);


        new MongoDbDataCopyer(db, "orders", sourceDataContext, "APP", "orders").copy();
        new MongoDbDataCopyer(db, "offices", sourceDataContext, "APP", "offices").copy();

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Examples of com.mongodb.Mongo

    private final String remoteServer = "remote:27017/test";


    @Ignore
    @Test
    public void performBenchMark() throws UnknownHostException, InterruptedException {
        Mongo local = new Mongo(new DBAddress(localServer));
        Mongo remote = new Mongo(new DBAddress(remoteServer));


        run(local, false, false);
        run(local, true, false);
        run(remote, false, true);
        run(remote, true, true);

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Examples of com.mongodb.Mongo

    }


    @Ignore
    @Test
    public void performBenchMark_WriteConcern() throws UnknownHostException, InterruptedException {
        Mongo mongo = new Mongo(new DBAddress(remoteServer));
        final DB db = mongo.getDB(TEST_DB1);
        final DBCollection nodes = db.getCollection("nodes");
        final DBCollection blobs = db.getCollection("blobs");
        int readers = 0;
        int writers = 2;
        for(WriteConcern wc : namedConcerns.keySet()){

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Examples of com.mongodb.Mongo

     * @param port The port.
     * @param database The database name.
     * @throws Exception If an error occurred while trying to connect.
     */
    public MongoConnection(String host, int port, String database) throws Exception {
        mongo = new Mongo(host, port);
        db = mongo.getDB(database);
    }

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Examples of Mongo

Connecting to a Replica Pair

Connecting to a Replica Set

Examples of com.mongodb.Mongo

Examples of com.mongodb.Mongo

Examples of com.mongodb.Mongo

Examples of com.mongodb.Mongo

Examples of com.mongodb.Mongo

Examples of com.mongodb.Mongo

Examples of com.mongodb.Mongo

Examples of com.mongodb.Mongo

Examples of com.mongodb.Mongo

Examples of com.mongodb.Mongo