Package com.mongodb.operation

Class UserExistsOperation

java.lang.Object

com.mongodb.operation.UserExistsOperation

All Implemented Interfaces:

AsyncReadOperation<Boolean>, ReadOperation<Boolean>

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

An operation that determines if a user exists.

Since:

3.0

Constructor Summary

Constructors

Constructor	Description
UserExistsOperation(String databaseName, String userName)	Construct a new instance.

Method Summary

Modifier and Type	Method	Description
Boolean	execute(ReadBinding binding)	General execute which can return anything of type T
void	executeAsync(AsyncReadBinding binding, SingleResultCallback<Boolean> callback)	General execute which can return anything of type T

Methods inherited from class java.lang.Object

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

Constructor Detail

UserExistsOperation

public UserExistsOperation(String databaseName,
                           String userName)

Construct a new instance.

Parameters:

databaseName - the name of the database for the operation.

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

Method Detail

execute

public Boolean execute(ReadBinding binding)

Description copied from interface: ReadOperation

General execute which can return anything of type T

Specified by:

execute in interface ReadOperation<Boolean>

Parameters:

binding - the binding to execute in the context of

Returns:

T, the result of the execution

executeAsync

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

Description copied from interface: AsyncReadOperation

General execute which can return anything of type T

Specified by:

executeAsync in interface AsyncReadOperation<Boolean>

Parameters:

binding - the binding to execute in the context of

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