# Class MemoryUserDatabaseMBean

java.lang.Object
org.apache.tomcat.util.modeler.BaseModelMBean
org.apache.catalina.mbeans.SparseUserDatabaseMBean
org.apache.catalina.mbeans.MemoryUserDatabaseMBean

All Implemented Interfaces:
  `DynamicMBean, MBeanRegistration, ModelMBeanNotificationBroadcaster, NotificationBroadcaster`

public class MemoryUserDatabaseMBean extends SparseUserDatabaseMBean

A ModelMBean implementation for the `org.apache.catalina.users.MemoryUserDatabase` component.

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `protected final ManagedBean`
  `managedMemory`
  The `ManagedBean` information describing this MBean.

  ### Fields inherited from class SparseUserDatabaseMBean

  `managed, managedGroup, managedRole, managedUser, mserver, registry`

  ### Fields inherited from class BaseModelMBean

  `attributeBroadcaster, generalBroadcaster, managedBean, oname, resource, resourceType`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `MemoryUserDatabaseMBean()`
  Default constructor.

- ## Method Summary

  ### Methods inherited from class SparseUserDatabaseMBean

  `createGroup, createRole, createUser, findGroup, findRole, findUser, getGroups, getRoles, getUsers, removeGroup, removeRole, removeUser, save`

  ### Methods inherited from class BaseModelMBean

  `addAttributeChangeNotificationListener, addNotificationListener, getAttribute, getAttributes, getClassName, getJmxName, getManagedResource, getMBeanInfo, getModelerType, getNotificationInfo, getObjectName, invoke, postDeregister, postRegister, preDeregister, preRegister, removeAttributeChangeNotificationListener, removeNotificationListener, sendAttributeChangeNotification, sendAttributeChangeNotification, sendNotification, sendNotification, setAttribute, setAttributes, setManagedBean, setManagedResource, toString`

  ### Methods inherited from class Object

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

- ## Field Details

  - ### managedMemory

    protected final ManagedBean managedMemory
    The `ManagedBean` information describing this MBean.

- ## Constructor Details

  - ### MemoryUserDatabaseMBean

    public MemoryUserDatabaseMBean()
    Default constructor.