Example usage for com.mongodb DBCollection remove

Introduction

In this page you can find the example usage for com.mongodb DBCollection remove.

Prototype

public WriteResult remove(final DBObject query) 

Source Link

Document

Remove documents from a collection.

Usage

From source file:mongodb.JavaDocDelete.java

public static void removeNewDocs(DBCollection collection) {
    BasicDBObject query = new BasicDBObject("category", "New");
    WriteResult result = collection.remove(query);
    System.out.println("Delete Result: \n" + result.toString());
}

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From source file:mongodb.JavaDocUpsert.java

public static void cleanupWord(DBCollection collection) {
    BasicDBObject query = new BasicDBObject("word", "righty");
    collection.remove(query);
}

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From source file:mongoDB.MongoDbClientAllImagesAsByteArrays.java

License:Open Source License

@Override
public int delCommentOnResource(int resourceCreatorID, int resourceID, int manipulationID) {
    int retVal = 0;
    if (resourceCreatorID < 0 || resourceID < 0 || manipulationID < 0)
        return -1;
    com.mongodb.DB db = null;//from   w ww  .j av  a  2s. c o  m
    try {
        // get the appropriate database
        db = mongo.getDB(database);
        db.requestStart();
        if (!manipulationArray) { // consider a separate manipoulations
            // table
            DBCollection collection = db.getCollection("manipulation");
            DBObject q = new BasicDBObject().append("mid", Integer.toString(manipulationID)).append("rid",
                    Integer.toString(resourceID));

            collection.remove(q);

        } else {
            DBCollection collection = db.getCollection("resources");
            DBObject q = new BasicDBObject().append("_id", resourceID);
            BasicDBObject updateCommand = new BasicDBObject("Manipulations",
                    new BasicDBObject("mid", Integer.toString(manipulationID)));
            WriteResult res = collection.update(q, new BasicDBObject("$pull", updateCommand), false, false,
                    writeConcern);
            if (res.getN() != 1)
                return -1;
        }

    } catch (Exception e) {
        System.out.println(e.toString());
        retVal = -1;
    } finally {
        if (db != null) {
            db.requestDone();
        }
    }
    return retVal;
}

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From source file:mongoDB.MongoDbClientAllImagesAsByteArrays.java

License:Open Source License

@Override
public void reconstructSchema() {
    com.mongodb.DB db = null;/*from   ww  w  . j av  a2 s.  co  m*/
    try {
        db = mongo.getDB(database);
        db.requestStart();
        // getting the number of users
        DBCollection collection = db.getCollection("users");
        int numUsers = (int) collection.getCount();
        // for every user set their conf Friends and pend Friends to null
        for (int i = 0; i < numUsers; i++) {
            DBObject r = new BasicDBObject().append("_id", i);
            DBObject queryResult = collection.findOne(r);
            BasicDBObject updateCommand = new BasicDBObject();
            updateCommand.put("$set", new BasicDBObject("ConfFriends", new ArrayList<Integer>()));
            WriteResult res = collection.update(r, updateCommand, false, false, writeConcern);
            updateCommand = new BasicDBObject();
            updateCommand.put("$set", new BasicDBObject("PendFriends", new ArrayList<Integer>()));
            res = collection.update(r, updateCommand, false, false, writeConcern);
        }
        if (manipulationArray) {
            collection = db.getCollection("resources");
            int numResources = (int) collection.getCount();
            // for every user set their conf Friends and pend Friends to null
            for (int i = 0; i < numUsers; i++) {
                DBObject r = new BasicDBObject().append("_id", i);
                DBObject queryResult = collection.findOne(r);
                BasicDBObject updateCommand = new BasicDBObject();
                updateCommand.put("$set", new BasicDBObject("Manipulations", new ArrayList<Integer>()));
                WriteResult res = collection.update(r, updateCommand, false, false, writeConcern);
            }
        } else {
            collection = db.getCollection("manipulation");
            //TODO: test this
            if (Boolean.parseBoolean(
                    props.getProperty(MONGODB_SHARDING_PROPERTY, MONGODB_SHARDING_PROPERTY_DEFAULT)) == true)
                collection.drop(); //this doesnt work with shards
            else {
                DBCursor DBCur = collection.find();
                while (DBCur.hasNext())
                    collection.remove(DBCur.next());
            }

        }

        db.requestDone();
    } catch (Exception ex) {
        db.requestDone();
        ex.printStackTrace();
    }
}

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From source file:mongodb.performance.MongoDBPerformance.java

/**
 * @param args the command line arguments
 *///from w  w  w .  ja va 2  s.c o  m
public static void main(String[] args) throws UnknownHostException, FileNotFoundException, IOException {
    if (args.length == 0) {
        System.out.println("Parmetro no informado!");
        System.exit(-1);
    }
    System.out.println("Parmetro: " + args[0]);

    MongoClient mongoClient = new MongoClient();
    //MongoClient mongoClient = new MongoClient( "54.172.218.64" , 27017 );
    DB db = mongoClient.getDB("myDatabase");

    DBCollection collection = db.getCollection("ads");
    collection.drop();

    BulkWriteOperation builder = collection.initializeUnorderedBulkOperation();

    FileInputStream fileInputStream = new FileInputStream(".\\resources\\MongoDB" + args[0] + ".txt");
    BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(fileInputStream));
    // Insert
    // Time start    
    long start = System.currentTimeMillis();

    String line;
    while ((line = bufferedReader.readLine()) != null) {
        DBObject bson = (DBObject) JSON.parse(line);
        builder.insert(bson);
    }
    bufferedReader.close();
    builder.execute();
    //Time end
    long elapsed = System.currentTimeMillis() - start;
    System.out.println("[insert] Time elapsed: " + elapsed + " ms");

    // Update
    // Time start    
    start = System.currentTimeMillis();
    collection.updateMulti(new BasicDBObject(),
            new BasicDBObject("$set", new BasicDBObject().append("ano", 2006)));
    // Time end
    elapsed = System.currentTimeMillis() - start;
    System.out.println("[update] Time elapsed: " + elapsed + " ms");

    // Select
    // Time start    
    start = System.currentTimeMillis();
    BasicDBObject keys = new BasicDBObject();
    keys.put("_id", 1);
    keys.put("modeloCarro.marca", 1);
    keys.put("modeloCarro.nome", 1);
    keys.put("uf", 1);
    keys.put("placa_carro", 1);
    keys.put("qtd_portas", 1);
    keys.put("cambio", 1);
    keys.put("combustivel", 1);
    keys.put("cor", 1);
    keys.put("km", 1);
    keys.put("valor", 1);
    keys.put("detalhe", 1);
    BasicDBObject sort = new BasicDBObject("_id", 1);

    DBCursor cursor = collection.find(new BasicDBObject(), keys).sort(sort);
    while (cursor.hasNext()) {
        cursor.next();
    }
    // Time end
    elapsed = System.currentTimeMillis() - start;
    System.out.println("[select] Time elapsed: " + elapsed + " ms");

    // Delete
    // Time start    
    start = System.currentTimeMillis();
    collection.remove(new BasicDBObject());
    // Time end
    elapsed = System.currentTimeMillis() - start;
    System.out.println("[delete] Time elapsed: " + elapsed + " ms");
}

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From source file:mongodb.View.java

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
    // TODO add your handling code here:
    String val = jTable1.getModel().getValueAt(jTable1.getSelectedRow(), 0).toString();
    try {/*from   w w w  .ja  v  a  2s .c o m*/
        DB userDB = DBManager.getDatabase();
        DBCollection col = userDB.getCollection("user");

        BasicDBObject query = new BasicDBObject("_id", new BasicDBObject("$eq", Integer.parseInt(val)));

        col.remove(query);

        // col.D(query, updateObj, false, true);

        JOptionPane.showMessageDialog(rootPane, "User deleted SucessFully...!");
        this.dispose();
        new View().setVisible(true);
    } catch (UnknownHostException ex) {
        Logger.getLogger(View.class.getName()).log(Level.SEVERE, null, ex);
    }

}

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From source file:mongoHandler.Handler.java

public boolean eliminarDocumento(BasicDBObject documentoAEliminar, String nombreColeccion) {
    try {/*from   w w  w.  j  av  a  2 s .c  om*/
        DBCollection coleccion = dataBase.getCollection(nombreColeccion);
        coleccion.remove(documentoAEliminar);
        System.out.println("DOCUMENTO ELIMINADO");
        return true;
    } catch (Exception e) {
        System.out.println("NO SE PUDO ELIMINAR EL DOCUMENTO : " + e.getMessage());
        return false;
    }
}

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From source file:mx.edu.cide.justiciacotidiana.v1.mongo.MongoInterface.java

License:Open Source License

/**
 * Elimina un elemento de la coleccin.//from w w w  .  j a v  a  2 s. co  m
 * @param collectionName Nombre de la coleccin donde se eliminar el elemento.
 * @param item Elemento a eliminar.
 * @return true si la eliminacin fue exitosa. false en otro caso.
 */
public boolean deleteItem(String collectionName, BasicDBObject item) {
    DBCollection tCol = mongoDB.getCollection(collectionName);

    try {
        tCol.remove(item);
    } catch (MongoException ex) {
        return false;
    }
    return true;
}

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From source file:mypackage.ManupulateMongo.java

protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/html;charset=UTF-8");
    try (PrintWriter out = response.getWriter()) {
        /* TODO output your page here. You may use following sample code. */
        String respective = request.getParameter("respective");
        String db = request.getParameter("dbname");
        String coll = request.getParameter("collname");
        String sb = respective;/*from   www.  j  a v a  2s .co m*/
        int index = sb.indexOf(";");
        int length = respective.length();
        String key = sb.substring(index + 1, length);
        HttpSession session = request.getSession(false);
        MongoClient mongoClient = new MongoClient("localhost", 27017);

        if (key.equals("db")) {
            String dbname = respective.substring(0, index);
            String coll_personal = session.getAttribute("uname") + "DB";
            DB mongodb = mongoClient.getDB(dbname);
            DB mongodb_personal = mongoClient.getDB("mydb");
            mongodb.dropDatabase();
            DBCollection dBCollection = mongodb_personal.getCollection(coll_personal);
            BasicDBObject query = new BasicDBObject();
            query.put("kapil", dbname);
            dBCollection.remove(query);
            out.print("true");
        }
        if (key.equals("coll")) {
            String collname = respective.substring(0, index);
            DB mongodb = mongoClient.getDB(db);
            DBCollection dBCollection = mongodb.getCollection(collname);
            dBCollection.drop();

            out.print("true");
        }
        if (key.equals("doc")) {
            String docname = respective.substring(0, index);
            DB mongodb = mongoClient.getDB(db);
            DBCollection dBCollection = mongodb.getCollection(coll);
            BasicDBObject query = new BasicDBObject();
            query.put("name", docname);
            dBCollection.remove(query);
            out.print("true");
        }
    }
}

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From source file:net.autosauler.ballance.server.model.AbstractStructuredData.java

License:Apache License

/**
 * Restore./*from  www  .  j a  v a 2  s  .c o m*/
 * 
 * @param dump
 *            the dump
 */
public void restore(Element dump) {

    DB db = Database.get(getDomain());
    if (db != null) {
        DBCollection coll = db.getCollection(getTableName());
        Log.trace(getTableName());
        NodeList recordsets = dump.getElementsByTagName("records");

        for (int i = 0; i < recordsets.getLength(); i++) {
            Element recordset = (Element) recordsets.item(i);
            if (recordset.getParentNode() == dump) {
                NodeList records = recordset.getElementsByTagName("record");
                if (records.getLength() > 0) {

                    BasicDBObject q = new BasicDBObject();
                    q.put("domain", getDomain());
                    Database.retain();
                    coll.remove(q);

                    for (int j = 0; j < records.getLength(); j++) {
                        Log.trace("record");
                        BasicDBObject doc = new BasicDBObject();
                        Element record = (Element) records.item(j);
                        NodeList fields = record.getElementsByTagName("field");
                        for (int k = 0; k < fields.getLength(); k++) {
                            Element field = (Element) fields.item(k);
                            String name = field.getAttribute("name");
                            if (name.equals("domain")) {
                                doc.put("domain", getDomain());
                            } else {

                                int type = struct.getType(name);
                                String sval = field.getAttribute("value");
                                Log.error("field name=" + name + " value=" + sval);
                                doc.put(name, DataTypes.fromString(type, sval));
                            }
                        }
                        Log.trace("insert");
                        coll.insert(doc);
                    }
                }
            }
        }
        Database.release();

        onRestore(dump);
    }

}

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