Example usage for com.mongodb DBCollection find

List of usage examples for com.mongodb DBCollection find

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Introduction

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

Prototype

public DBCursor find(final DBObject query)

Source Link

Document

Select documents in collection and get a cursor to the selected documents.

Usage

From source file:com.impetus.kundera.client.MongoDBClient.java

License:Apache License

@Override
public <E> E loadColumns(EntityManagerImpl em, Class<E> clazz, String dbName, String documentName, String key,
        EntityMetadata m) throws Exception {
    log.debug("Fetching data from " + documentName + " for PK " + key);
    DBCollection dbCollection = mongoDb.getCollection(documentName);

    BasicDBObject query = new BasicDBObject();
    query.put(m.getIdColumn().getName(), key);

    DBCursor cursor = dbCollection.find(query);
    DBObject fetchedDocument = null;/*from w  w  w . j a  v  a2  s . co m*/

    if (cursor.hasNext()) {
        fetchedDocument = cursor.next();
    } else {
        return null;
    }

    Object entity = new MongoDBDataHandler().getEntityFromDocument(em, clazz, m, fetchedDocument);

    return (E) entity;
}

From source file:com.impetus.kundera.client.MongoDBClient.java

License:Apache License

@Override
public <E> List<E> loadColumns(EntityManagerImpl em, Class<E> clazz, String dbName, String documentName,
        EntityMetadata m, String... keys) throws Exception {
    log.debug("Fetching data from " + documentName + " for Keys " + keys);

    DBCollection dbCollection = mongoDb.getCollection(documentName);

    BasicDBObject query = new BasicDBObject();
    query.put(m.getIdColumn().getName(), new BasicDBObject("$in", keys));

    DBCursor cursor = dbCollection.find(query);

    List entities = new ArrayList<E>();
    while (cursor.hasNext()) {
        DBObject fetchedDocument = cursor.next();
        Object entity = new MongoDBDataHandler().getEntityFromDocument(em, clazz, m, fetchedDocument);
        entities.add(entity);/*  w  w  w .  j a  v a2s .c  om*/
    }
    return entities;
}

From source file:com.impetus.kundera.client.MongoDBClient.java

License:Apache License

@Override
public void delete(String idColumnName, String documentName, String rowId) throws Exception {
    DBCollection dbCollection = mongoDb.getCollection(documentName);

    //Find the DBObject to remove first
    BasicDBObject query = new BasicDBObject();
    query.put(idColumnName, rowId);/*  w  ww  . j av  a2s .  c  om*/

    DBCursor cursor = dbCollection.find(query);
    DBObject documentToRemove = null;

    if (cursor.hasNext()) {
        documentToRemove = cursor.next();
    } else {
        throw new PersistenceException(
                "Can't remove Row# " + rowId + " for " + documentName + " because record doesn't exist.");
    }

    dbCollection.remove(documentToRemove);
}

From source file:com.janeluo.jfinalplus.plugin.monogodb.MongoKit.java

License:Apache License

public static Page<Record> paginate(String collection, int pageNumber, int pageSize, Map<String, Object> filter,
        Map<String, Object> like, Map<String, Object> sort) {
    DBCollection logs = MongoKit.getCollection(collection);
    BasicDBObject conditons = new BasicDBObject();
    buildFilter(filter, conditons);//from   w  w w. j  a v  a  2  s . c  om
    buildLike(like, conditons);
    DBCursor dbCursor = logs.find(conditons);
    page(pageNumber, pageSize, dbCursor);
    sort(sort, dbCursor);
    List<Record> records = new ArrayList<Record>();
    while (dbCursor.hasNext()) {
        records.add(toRecord(dbCursor.next()));
    }
    int totalRow = dbCursor.count();
    if (totalRow <= 0) {
        return new Page<Record>(new ArrayList<Record>(0), pageNumber, pageSize, 0, 0);
    }
    int totalPage = totalRow / pageSize;
    if (totalRow % pageSize != 0) {
        totalPage++;
    }
    Page<Record> page = new Page<Record>(records, pageNumber, pageSize, totalPage, totalRow);
    return page;
}

From source file:com.javamongodb.application.RecordsActivity.java

private void update(String columnName, String newValue, String mobileNumber) {
    try {//from w w  w. j a  v a2s .co  m
        DBCollection collection = DatabaseUtils.openDBConnection();
        BasicDBObject query = new BasicDBObject("MobileNumber", new BasicDBObject("$regex", mobileNumber));
        DBCursor cursor = collection.find(query);
        DBObject doc = cursor.next();
        Object id = doc.get("_id");
        Object prevData = doc.get(columnName);
        if (!(newValue.equals(prevData.toString()))) {
            BasicDBObject updateDocument = new BasicDBObject();
            updateDocument.append("$set", new BasicDBObject().append(columnName, newValue));
            BasicDBObject searchQuery = new BasicDBObject().append("_id", id);
            int i = JOptionPane.showConfirmDialog(null, messages.getString("question.to.save"),
                    messages.getString("title.save.confirm"), JOptionPane.YES_NO_OPTION,
                    JOptionPane.QUESTION_MESSAGE);
            if (i == JOptionPane.YES_OPTION) {
                collection.update(searchQuery, updateDocument); //update the document
                JOptionPane.showMessageDialog(null, messages.getString("notification.database.updated"),
                        messages.getString("title.update.confirm"), JOptionPane.INFORMATION_MESSAGE);
            }
        }
        logger.debug("Updating object with id: " + id + " succeeded");
    } catch (Exception exception) {
        logger.error("Updating object failed:\n" + exception.getMessage());
    } finally {
        logger.debug("Closing database connection");
        DatabaseUtils.closeDBConnection();
    }
}

From source file:com.jhkt.playgroundArena.shared.tasks.MongoDBTaskRunner.java

License:Apache License

public List<AbstractDocument> query(AbstractDocument queryCriteria) {
    DBCollection collection = getDBCollection(queryCriteria);
    DBCursor cursor = collection.find(queryCriteria.resolveToBasicDBObject());
    List<AbstractDocument> queryResult = new LinkedList<AbstractDocument>();

    while (cursor.hasNext()) {
        DBObject result = cursor.next();
        queryResult.add(AbstractDocument.convertBacktoClassInstance(result));
    }/* ww  w  . ja va 2s .  c  o  m*/

    return queryResult;
}

From source file:com.jjorgemoura.hangmanz.model.ZDHangmanGame.java

public static ZDHangmanGame loadByUUID(String uuid, DB dbEngine) {

    ZDHangmanGame theGame = null;//from   w  w w  . jav  a 2 s.c o m

    if (dbEngine == null) {

        return null;
    }

    //Prepare Collection
    DBCollection dbCollection = dbEngine.getCollection(ZDHangmanGame.DB_COLLECTION_ID);

    BasicDBObject query = new BasicDBObject();
    query.put("hm_uuid", uuid);
    DBCursor cursor = dbCollection.find(query);

    while (cursor.hasNext()) {

        DBObject x = cursor.next();
        //System.out.println(x);

        theGame = new ZDHangmanGame(x, dbEngine);
    }

    return theGame;
}

From source file:com.liferay.mongodb.hook.service.impl.MongoExpandoRowLocalServiceImpl.java

License:Open Source License

protected List<ExpandoRow> getRows(ExpandoTable expandoTable, int start, int end) {

    DBCollection dbCollection = MongoDBUtil.getCollection(expandoTable);

    DBCursor dbCursor = dbCollection.find(new BasicDBObject());

    if ((start != QueryUtil.ALL_POS) && (end != QueryUtil.ALL_POS)) {
        dbCursor.limit(start);/*from w  w  w . ja  va2s  .c  o  m*/
        dbCursor.limit(end - start);
    }

    List<ExpandoRow> expandoRows = new ArrayList<ExpandoRow>();

    for (DBObject expandoRowDBObject : dbCursor.toArray()) {
        ExpandoRow expandoRow = toExpandoRow(expandoRowDBObject, expandoTable);

        expandoRows.add(expandoRow);
    }

    return expandoRows;
}

From source file:com.liferay.mongodb.hook.service.impl.MongoExpandoValueLocalServiceImpl.java

License:Open Source License

@Override
public List<ExpandoValue> getColumnValues(long companyId, long classNameId, String tableName, String columnName,
        String data, int start, int end) {

    try {//w w w .j a  va 2 s .  co  m
        ExpandoColumn expandoColumn = ExpandoColumnLocalServiceUtil.getColumn(companyId, classNameId, tableName,
                columnName);

        DBCollection dbCollection = MongoDBUtil.getCollection(companyId, classNameId, tableName);

        DBCursor dbCursor = null;

        if (Validator.isNotNull(data)) {
            DBObject queryDBObject = new BasicDBObject();

            ExpandoValue expandoValue = ExpandoValueUtil.create(0);

            expandoValue.setColumnId(expandoColumn.getColumnId());
            expandoValue.setData(data);

            queryDBObject.put(columnName, getData(expandoColumn, expandoValue));

            dbCursor = dbCollection.find(queryDBObject);
        } else {
            dbCursor = dbCollection.find();
        }

        if ((start != QueryUtil.ALL_POS) && (end != QueryUtil.ALL_POS)) {
            dbCursor = dbCursor.skip(start).limit(end - start);
        }

        List<ExpandoValue> expandoValues = new ArrayList<ExpandoValue>();

        for (DBObject dbObject : dbCursor.toArray()) {
            BasicDBObject expandoValueDBObject = (BasicDBObject) dbObject;

            ExpandoValue expandoValue = toExpandoValue(expandoValueDBObject, expandoColumn);

            expandoValues.add(expandoValue);
        }

        return expandoValues;
    } catch (PortalException pe) {
        throw new SystemException(pe);
    }
}

From source file:com.liferay.mongodb.hook.service.impl.MongoExpandoValueLocalServiceImpl.java

License:Open Source License

@Override
public int getColumnValuesCount(long companyId, long classNameId, String tableName, String columnName,
        String data) {//from ww w  .j a v  a2  s  .c om

    try {
        ExpandoColumn expandoColumn = ExpandoColumnLocalServiceUtil.getColumn(companyId, classNameId, tableName,
                columnName);

        DBCollection dbCollection = MongoDBUtil.getCollection(companyId, classNameId, tableName);

        DBCursor dbCursor = null;

        if (Validator.isNotNull(data)) {
            DBObject queryDBObject = new BasicDBObject();

            ExpandoValue expandoValue = ExpandoValueUtil.create(0);

            expandoValue.setColumnId(expandoColumn.getColumnId());
            expandoValue.setData(data);

            queryDBObject.put(columnName, getData(expandoColumn, expandoValue));

            dbCursor = dbCollection.find(queryDBObject);
        } else {
            dbCursor = dbCollection.find();
        }

        return dbCursor.count();
    } catch (PortalException pe) {
        throw new SystemException(pe);
    }
}