com.mongodb.client.result

类 UpdateResult

java.lang.Object

com.mongodb.client.result.UpdateResult

public abstract class UpdateResult
extends java.lang.Object

The result of an update operation. If the update was unacknowledged, then wasAcknowledged will return false and all other methods will throw UnsupportedOperationException.

从以下版本开始:

3.0

另请参阅:

WriteConcern.UNACKNOWLEDGED

构造器概要

构造器

构造器和说明
UpdateResult()

方法概要

限定符和类型	方法和说明
static UpdateResult	acknowledged(long matchedCount, java.lang.Long modifiedCount, BsonValue upsertedId) Create an acknowledged UpdateResult
abstract long	getMatchedCount() Gets the number of documents matched by the query.
abstract long	getModifiedCount() Gets the number of documents modified by the update.
abstract BsonValue	getUpsertedId() If the replace resulted in an inserted document, gets the _id of the inserted document, otherwise null.
abstract boolean	isModifiedCountAvailable() Gets a value indicating whether the modified count is available.
static UpdateResult	unacknowledged() Create an unacknowledged UpdateResult
abstract boolean	wasAcknowledged() Returns true if the write was acknowledged.

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

UpdateResult

public UpdateResult()

方法详细资料

wasAcknowledged

public abstract boolean wasAcknowledged()

Returns true if the write was acknowledged.

返回:

true if the write was acknowledged

getMatchedCount

public abstract long getMatchedCount()

Gets the number of documents matched by the query.

返回:

the number of documents matched

isModifiedCountAvailable

public abstract boolean isModifiedCountAvailable()

Gets a value indicating whether the modified count is available.

The modified count is only available when all servers have been upgraded to 2.6 or above.

返回:

true if the modified count is available

getModifiedCount

public abstract long getModifiedCount()

Gets the number of documents modified by the update.

返回:

the number of documents modified

getUpsertedId

public abstract BsonValue getUpsertedId()

If the replace resulted in an inserted document, gets the _id of the inserted document, otherwise null.

返回:

if the replace resulted in an inserted document, the _id of the inserted document, otherwise null

acknowledged

public static UpdateResult acknowledged(long matchedCount,
                                        java.lang.Long modifiedCount,
                                        BsonValue upsertedId)

Create an acknowledged UpdateResult

参数:

matchedCount - the number of documents matched

modifiedCount - the number of documents modified

upsertedId - if the replace resulted in an inserted document, the id of the inserted document

返回:

an acknowledged UpdateResult

unacknowledged

public static UpdateResult unacknowledged()

Create an unacknowledged UpdateResult

返回:

an unacknowledged UpdateResult