Examples with GroupOperation com.mongodb.operation.GroupOperation used on opensource projects

Example 1 with GroupOperation

use of com.mongodb.operation.GroupOperation in project mongo-java-driver by mongodb.

the class GroupCommand method toOperation.

GroupOperation<DBObject> toOperation(final MongoNamespace namespace, final DBObjectCodec codec) {
    if (initial == null) {
        throw new IllegalArgumentException("Group command requires an initial document for the aggregate result");
    }
    if (reduce == null) {
        throw new IllegalArgumentException("Group command requires a reduce function for the aggregate result");
    }
    GroupOperation<DBObject> operation = new GroupOperation<DBObject>(namespace, new BsonJavaScript(reduce), new BsonDocumentWrapper<DBObject>(initial, codec), codec);
    if (keys != null) {
        operation.key(new BsonDocumentWrapper<DBObject>(keys, codec));
    }
    if (keyf != null) {
        operation.keyFunction(new BsonJavaScript(keyf));
    }
    if (condition != null) {
        operation.filter(new BsonDocumentWrapper<DBObject>(condition, codec));
    }
    if (finalize != null) {
        operation.finalizeFunction(new BsonJavaScript(finalize));
    }
    operation.collation(collation);
    return operation;
}