com.mongodb.client.model

类 CountOptions

java.lang.Object

com.mongodb.client.model.CountOptions

public class CountOptions
extends java.lang.Object

The options for a count operation.

从以下版本开始:

3.0

MongoDB documentation

Count

构造器概要

构造器

构造器和说明
CountOptions()

方法概要

限定符和类型	方法和说明
Bson	getHint() Gets the hint to apply.
java.lang.String	getHintString() Gets the hint string to apply.
int	getLimit() Gets the limit to apply.
long	getMaxTime(java.util.concurrent.TimeUnit timeUnit) Gets the maximum execution time on the server for this operation.
int	getSkip() Gets the number of documents to skip.
CountOptions	hint(Bson hint) Sets the hint to apply.
CountOptions	hintString(java.lang.String hint) Sets the hint to apply.
CountOptions	limit(int limit) Sets the limit to apply.
CountOptions	maxTime(long maxTime, java.util.concurrent.TimeUnit timeUnit) Sets the maximum execution time on the server for this operation.
CountOptions	skip(int skip) Sets the number of documents to skip.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

CountOptions

public CountOptions()

方法详细资料

getHint

public Bson getHint()

Gets the hint to apply.

返回:

the hint, which should describe an existing

getHintString

public java.lang.String getHintString()

Gets the hint string to apply.

返回:

the hint string, which should be the name of an existing index

hint

public CountOptions hint(Bson hint)

Sets the hint to apply.

参数:

hint - a document describing the index which should be used for this operation.

返回:

this

hintString

public CountOptions hintString(java.lang.String hint)

Sets the hint to apply.

参数:

hint - the name of the index which should be used for the operation

返回:

this

getLimit

public int getLimit()

Gets the limit to apply. The default is 0, which means there is no limit.

返回:

the limit

MongoDB documentation

Limit

limit

public CountOptions limit(int limit)

Sets the limit to apply.

参数:

limit - the limit

返回:

this

MongoDB documentation

Limit

getSkip

public int getSkip()

Gets the number of documents to skip. The default is 0.

返回:

the number of documents to skip

MongoDB documentation

Skip

skip

public CountOptions skip(int skip)

Sets the number of documents to skip.

参数:

skip - the number of documents to skip

返回:

this

MongoDB documentation

Skip

getMaxTime

public long getMaxTime(java.util.concurrent.TimeUnit timeUnit)

Gets the maximum execution time on the server for this operation. The default is 0, which places no limit on the execution time.

参数:

timeUnit - the time unit to return the result in

返回:

the maximum execution time in the given time unit

maxTime

public CountOptions maxTime(long maxTime,
                            java.util.concurrent.TimeUnit timeUnit)

Sets the maximum execution time on the server for this operation.

参数:

maxTime - the max time

timeUnit - the time unit, which may not be null

返回:

this