本文整理汇总了Java中com.mongodb.DBCollection.distinct方法的典型用法代码示例。如果您正苦于以下问题：Java DBCollection.distinct方法的具体用法？Java DBCollection.distinct怎么用？Java DBCollection.distinct使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类com.mongodb.DBCollection的用法示例。
在下文中一共展示了DBCollection.distinct方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: distinct
import com.mongodb.DBCollection; //导入方法依赖的package包/类
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; //导入方法依赖的package包/类
@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;
}