WebCall the skip () method on a cursor to control where MongoDB begins returning results. This approach may be useful in implementing paginated results. Note You must apply skip () to the cursor before retrieving any documents from the database. The skip () method has the following parameter: Behavior Using skip () with sort () Webchecks if the cursor is exhausted cursor.hasNext () The hasNext operator returns true, then the cursor still has documents. In this case the next document can be accessed using the next operator, which will advance the cursor. Examples arangosh> var a = db._query ( "FOR x IN five RETURN x" ); arangosh> while (a.hasNext ()) print (a.next ());
com.mongodb.client.MongoCursor java code examples Tabnine
WebApr 11, 2024 · 最近遇到需要将mysql表中数据缓存到redis中，而列表展示还需要采用分页来进行查询；最开始以为HASH结构能满足，后经网上查阅，利用ZSET及HASH结构存储数据即可实现redis分页。步骤如下：1. 首先利用ZSET将表A中的id以value形式进行存储，以及利用ZSET中score进行排序处理；2. Web其中cursor表示下一个元素的索引位置，lastRet表示上一个元素的索引位置。 int cursor; int lastRet = -1; int expectedModCount = modCount; 从cursor、lastRet定义可以看出，lastRet一直比cursor少一所以hasNext()实现方法异常简单，只需要判断cursor和lastRet是否相等即可。 public boolean hasNext() stuckey used cars altoona pa
A deep dive into cursor-based pagination in MongoDB …
WebA cursor fetches documents in batches to reduce both memory consumption and network bandwidth usage. Cursors are highly configurable and offer multiple interaction … WebIf the hasNext operator returns true, then the underlying cursor of the AQL query still has documents. In this case the next document can be accessed using the next operator, … WebMethod Detail hasNext boolean hasNext () Returns true if this list iterator has more elements when traversing the list in the forward direction. (In other words, returns true if next () would return an element rather than throwing an exception.) Specified by: hasNext in interface Iterator < E > Returns: stuckey used inventory