本文整理匯總了Java中com.mongodb.DBCollection.distinct方法的典型用法代碼示例。如果您正苦於以下問題：Java DBCollection.distinct方法的具體用法？Java DBCollection.distinct怎麽用？Java DBCollection.distinct使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類com.mongodb.DBCollection的用法示例。
在下文中一共展示了DBCollection.distinct方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: distinct
import com.mongodb.DBCollection; //導入方法依賴的package包/類
public List<String> distinct(String fieldName, Map<String, Object> whereConditions) {
BasicDBObject dbObject = new BasicDBObject();
dbObject.putAll(whereConditions);
DBCollection dBCollection = datastore.getCollection(genericType);
return dBCollection.distinct(fieldName, dbObject);
}
示例2: distinct
import com.mongodb.DBCollection; //導入方法依賴的package包/類
@SuppressWarnings({ "rawtypes", "unchecked" })
@Override
public <T extends Model> List<Object> distinct(Class<T> modelClass, Map<String, Object> filter,
QueryOptions queryOptions, String... distinctField) {
if (modelClass == null)
throw new DaoException("Model class cannot be empty");
if (filter == null)
filter = EMPTY_FILTER;
List distinctValues = null;
DBObject dbObject = buildQueryFilter(modelClass, filter, queryOptions);
DBCollection col = collection(modelClass);
distinctValues = col.distinct(distinctField[0], dbObject);
distinctValues.removeAll(Collections.singleton(null));
Collections.sort(distinctValues);
return distinctValues;
}