com.mongodb.operation

类 UserExistsOperation

java.lang.Object

com.mongodb.operation.UserExistsOperation

所有已实现的接口:

AsyncReadOperation<java.lang.Boolean>, ReadOperation<java.lang.Boolean>

public class UserExistsOperation
extends java.lang.Object
implements AsyncReadOperation<java.lang.Boolean>, ReadOperation<java.lang.Boolean>

An operation that determines if a user exists.

从以下版本开始:

3.0

构造器概要

构造器

构造器和说明
UserExistsOperation(java.lang.String databaseName, java.lang.String userName) Construct a new instance.

方法概要

限定符和类型	方法和说明
java.lang.Boolean	execute(ReadBinding binding) General execute which can return anything of type T
void	executeAsync(AsyncReadBinding binding, SingleResultCallback<java.lang.Boolean> callback) General execute which can return anything of type T

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

UserExistsOperation

public UserExistsOperation(java.lang.String databaseName,
                           java.lang.String userName)

Construct a new instance.

参数:

databaseName - the name of the database for the operation.

userName - the name of the user to check if they exist.

方法详细资料

execute

public java.lang.Boolean execute(ReadBinding binding)

从接口复制的说明: ReadOperation

General execute which can return anything of type T

指定者:

execute 在接口中 ReadOperation<java.lang.Boolean>

参数:

binding - the binding to execute in the context of

返回:

T, the result of the execution

executeAsync

public void executeAsync(AsyncReadBinding binding,
                         SingleResultCallback<java.lang.Boolean> callback)

从接口复制的说明: AsyncReadOperation

General execute which can return anything of type T

指定者:

executeAsync 在接口中 AsyncReadOperation<java.lang.Boolean>

参数:

binding - the binding to execute in the context of

callback - the callback to be called when the operation has been executed