Package com.mongodb.operation

Class UserExistsOperation

java.lang.Object

com.mongodb.operation.UserExistsOperation

All Implemented Interfaces:

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.

Since:

3.0

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
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

Methods inherited from class java.lang.Object

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

Constructor Detail

UserExistsOperation

public UserExistsOperation(java.lang.String databaseName,
                           java.lang.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 java.lang.Boolean execute(ReadBinding binding)

Description copied from interface: ReadOperation

General execute which can return anything of type T

Specified by:

execute in interface ReadOperation<java.lang.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<java.lang.Boolean> callback)

Description copied from interface: AsyncReadOperation

General execute which can return anything of type T

Specified by:

executeAsync in interface AsyncReadOperation<java.lang.Boolean>

Parameters:

binding - the binding to execute in the context of

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