Examples of com.mongodb.WriteConcern

com.mongodb.WriteConcern
WriteConcern control the write behavior for with various options, as well as exception raising on error conditions.

w
- -1 = don't even report network errors
- 0 = default, don't call getLastError by default
- 1 = basic, call getLastError, but don't wait for slaves
- 2+= wait for slaves
wtimeout how long to wait for slaves before failing
- 0 = indefinite
- > 0 = ms to wait
fsync force fsync to disk
@dochub databases

  @Override
  public void insertOrUpdateTuple(EntityKey key, Tuple tuple, TupleContext tupleContext) {
    BasicDBObject idObject = this.prepareIdObject( key );


    DBObject updater = objectForUpdate( tuple, idObject );
    WriteConcern writeConcern = getWriteConcern( tupleContext );


    getCollection( key ).update( idObject, updater, true, false, writeConcern );
  }

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    return doc != null;
  }


  @Override
  public void insertTuple(EntityKeyMetadata entityKeyMetadata, Tuple tuple, TupleContext tupleContext) {
    WriteConcern writeConcern = getWriteConcern( tupleContext );
    DBObject objectWithId = insertDBObject( entityKeyMetadata, tuple, writeConcern );
    String idColumnName = entityKeyMetadata.getColumnNames()[0];
    tuple.put( idColumnName, objectWithId.get( ID_FIELDNAME ) );
  }

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  @Override
  public void removeTuple(EntityKey key, TupleContext tupleContext) {
    DBCollection collection = getCollection( key );
    DBObject toDelete = prepareIdObject( key );
    WriteConcern writeConcern = getWriteConcern( tupleContext );


    collection.remove( toDelete, writeConcern );
  }

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    DBObject query;
    MongoDBAssociationSnapshot assocSnapshot = (MongoDBAssociationSnapshot) association.getSnapshot();
    String associationField;


    AssociationStorageStrategy storageStrategy = getAssociationStorageStrategy( key, associationContext );
    WriteConcern writeConcern = getWriteConcern( associationContext );


    List<?> rows = getAssociationRows( association, key );
    Object toStore = key.getMetadata().isOneToOne() ? rows.get( 0 ) : rows;


    // We need to execute the previous operations first or it won't be able to find the key that should have

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  }


  @Override
  public void removeAssociation(AssociationKey key, AssociationContext associationContext) {
    AssociationStorageStrategy storageStrategy = getAssociationStorageStrategy( key, associationContext );
    WriteConcern writeConcern = getWriteConcern( associationContext );


    if ( storageStrategy == AssociationStorageStrategy.IN_ENTITY ) {
      DBObject entity = this.prepareIdObject( key.getEntityKey() );
      if ( entity != null ) {
        BasicDBObject updater = new BasicDBObject();

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  private void executeBatchUpdate(Map<DBCollection, BatchInsertionTask> inserts, InsertOrUpdateTupleOperation tupleOperation) {
    EntityKey entityKey = tupleOperation.getEntityKey();
    Tuple tuple = tupleOperation.getTuple();
    MongoDBTupleSnapshot snapshot = (MongoDBTupleSnapshot) tupleOperation.getTuple().getSnapshot();
    WriteConcern writeConcern = getWriteConcern( tupleOperation.getTupleContext() );


    if ( INSERT == snapshot.getSnapshotType() ) {
      prepareForInsert( inserts, snapshot, entityKey, tuple, writeConcern );
    }
    else {

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    protected void doRemove(Exchange exchange) throws Exception {
        DBCollection dbCol = calculateCollection(exchange);
        DBObject removeObj = exchange.getIn().getMandatoryBody(DBObject.class);


        WriteConcern wc = extractWriteConcern(exchange);
        WriteResult result = wc == null ? dbCol.remove(removeObj) : dbCol.remove(removeObj, wc);


        Message resultMessage = prepareResponseMessage(exchange, MongoDbOperation.remove);
        // we always return the WriteResult, because whether the getLastError was called or not,
        // the user will have the means to call it or obtain the cached CommandResult

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        Boolean multi = exchange.getIn().getHeader(MongoDbConstants.MULTIUPDATE, Boolean.class);
        Boolean upsert = exchange.getIn().getHeader(MongoDbConstants.UPSERT, Boolean.class);


        WriteResult result;
        WriteConcern wc = extractWriteConcern(exchange);
        // In API 2.7, the default upsert and multi values of update(DBObject, DBObject) are false, false, so we unconditionally invoke the
        // full-signature method update(DBObject, DBObject, boolean, boolean). However, the default behaviour may change in the future, 
        // so it's safer to be explicit at this level for full determinism
        if (multi == null && upsert == null) {
            // for update with no multi nor upsert but with specific WriteConcern there is no update signature without multi and upsert args,

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    protected void doSave(Exchange exchange) throws Exception {
        DBCollection dbCol = calculateCollection(exchange);
        DBObject saveObj = exchange.getIn().getMandatoryBody(DBObject.class);


        WriteConcern wc = extractWriteConcern(exchange);
        WriteResult result = wc == null ? dbCol.save(saveObj) : dbCol.save(saveObj, wc);
        exchange.getIn().setHeader(MongoDbConstants.OID, saveObj.get("_id"));


        prepareResponseMessage(exchange, MongoDbOperation.save);
        // we always return the WriteResult, because whether the getLastError was called or not, the user will have the means to call it or

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                throw new CamelMongoDbException("MongoDB operation = insert, Body is not conversible to type DBObject nor List<DBObject>");
            }
        }


        WriteResult result;
        WriteConcern wc = extractWriteConcern(exchange);
        if (singleInsert) {
            DBObject insertObject = (DBObject) insert;
            result = wc == null ? dbCol.insert(insertObject) : dbCol.insert(insertObject, wc);
            exchange.getIn().setHeader(MongoDbConstants.OID, insertObject.get("_id"));
        } else {

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