Examples with Version org.mongodb.morphia.annotations.Version used on opensource projects

Example 1 with Version

use of org.mongodb.morphia.annotations.Version in project morphia by mongodb.

the class DatastoreImpl method tryVersionedUpdate.

private <T> WriteResult tryVersionedUpdate(final DBCollection dbColl, final T entity, final DBObject dbObj, final Object idValue, final InsertOptions options, final MappedClass mc) {
    WriteResult wr;
    if (mc.getFieldsAnnotatedWith(Version.class).isEmpty()) {
        return null;
    }
    final MappedField mfVersion = mc.getMappedVersionField();
    final String versionKeyName = mfVersion.getNameToStore();
    Long oldVersion = (Long) mfVersion.getFieldValue(entity);
    long newVersion = nextValue(oldVersion);
    dbObj.put(versionKeyName, newVersion);
    if (idValue != null && newVersion != 1) {
        final Query<?> query = find(dbColl.getName(), entity.getClass()).disableValidation().filter(Mapper.ID_KEY, idValue).enableValidation().filter(versionKeyName, oldVersion);
        final UpdateResults res = update(query, dbObj, new UpdateOptions().bypassDocumentValidation(options.getBypassDocumentValidation()).writeConcern(options.getWriteConcern()));
        wr = res.getWriteResult();
        if (res.getUpdatedCount() != 1) {
            throw new ConcurrentModificationException(format("Entity of class %s (id='%s',version='%d') was concurrently updated.", entity.getClass().getName(), idValue, oldVersion));
        }
    } else {
        wr = saveDocument(dbColl, dbObj, options);
    }
    return wr;
}