com.mongodb

类 WriteConcernResult

java.lang.Object

com.mongodb.WriteConcernResult

public abstract class WriteConcernResult
extends java.lang.Object

The result of a successful write operation. If the write was unacknowledged, then wasAcknowledged will return false and all other methods will throw MongoUnacknowledgedWriteException.

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
WriteConcernResult()

方法概要

限定符和类型	方法和说明
static WriteConcernResult	acknowledged(int count, boolean isUpdateOfExisting, BsonValue upsertedId) Create an acknowledged WriteConcernResult
abstract int	getCount() Returns the number of documents affected by the write operation.
abstract BsonValue	getUpsertedId() Returns the value of _id if this write resulted in an upsert.
abstract boolean	isUpdateOfExisting() Returns true if the write was an update of an existing document.
static WriteConcernResult	unacknowledged() Create an unacknowledged WriteConcernResult
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

WriteConcernResult

public WriteConcernResult()

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

getCount

public abstract int getCount()

Returns the number of documents affected by the write operation.

返回:

the number of documents affected by the write operation

抛出:

java.lang.UnsupportedOperationException - if the write was unacknowledged.

isUpdateOfExisting

public abstract boolean isUpdateOfExisting()

Returns true if the write was an update of an existing document.

返回:

true if the write was an update of an existing document

抛出:

java.lang.UnsupportedOperationException - if the write was unacknowledged.

getUpsertedId

public abstract BsonValue getUpsertedId()

Returns the value of _id if this write resulted in an upsert.

返回:

the value of _id if this write resulted in an upsert.

抛出:

java.lang.UnsupportedOperationException - if the write was unacknowledged.

acknowledged

public static WriteConcernResult acknowledged(int count,
                                              boolean isUpdateOfExisting,
                                              BsonValue upsertedId)

Create an acknowledged WriteConcernResult

参数:

count - the count of matched documents

isUpdateOfExisting - whether an existing document was updated

upsertedId - if an upsert resulted in an inserted document, this is the _id of that document. This may be null

返回:

an acknowledged WriteConcernResult

unacknowledged

public static WriteConcernResult unacknowledged()

Create an unacknowledged WriteConcernResult

返回:

an unacknowledged WriteConcernResult