SparseUserDatabase (Apache Tomcat 9.0.81 API Documentation)

Package org.apache.catalina.users

## Class SparseUserDatabase

- java.lang.Object
- - org.apache.catalina.users.SparseUserDatabase

- All Implemented Interfaces:
    `UserDatabase`
  Direct Known Subclasses:
    `DataSourceUserDatabase`

      public abstract class SparseUserDatabase
      extends java.lang.Object
      implements UserDatabase

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `SparseUserDatabase()` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `boolean` | `isSparse()` | Is the database data loaded on demand.

    - ### Methods inherited from class java.lang.Object

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

    - ### Methods inherited from interface org.apache.catalina.UserDatabase

      `backgroundProcess, close, createGroup, createRole, createUser, findGroup, findRole, findUser, getGroups, getId, getRoles, getUsers, isAvailable, modifiedGroup, modifiedRole, modifiedUser, open, removeGroup, removeRole, removeUser, save`

- - ### Constructor Detail

    - #### SparseUserDatabase

          public SparseUserDatabase()

  - ### Method Detail

    - #### isSparse

          public boolean isSparse()

      Description copied from interface: `UserDatabase`
      Is the database data loaded on demand. This is used to avoid eager loading of the full database data, for example for JMX registration of all objects.
      Specified by:
        `isSparse` in interface `UserDatabase`
      Returns:
        false