Example usage for com.mongodb DBRef DBRef

Introduction

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

Prototype

public DBRef(final String collectionName, final Object id) 

Source Link

Document

Construct an instance.

Usage

From source file:org.springframework.data.mongodb.core.convert.QueryMapper.java

License:Apache License

/**
 * Converts the given source assuming it's actually an association to another object.
 * //from   w  ww .  j a v  a  2s .com
 * @param source
 * @param property
 * @return
 */
protected Object convertAssociation(Object source, MongoPersistentProperty property) {

    if (property == null || source == null || source instanceof DBObject) {
        return source;
    }

    if (source instanceof DBRef) {

        DBRef ref = (DBRef) source;
        return new DBRef(ref.getCollectionName(), convertId(ref.getId()));
    }

    if (source instanceof Iterable) {
        BasicDBList result = new BasicDBList();
        for (Object element : (Iterable<?>) source) {
            result.add(createDbRefFor(element, property));
        }
        return result;
    }

    if (property.isMap()) {
        BasicDBObject result = new BasicDBObject();
        DBObject dbObject = (DBObject) source;
        for (String key : dbObject.keySet()) {
            result.put(key, createDbRefFor(dbObject.get(key), property));
        }
        return result;
    }

    return createDbRefFor(source, property);
}

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