org.apache.catalina.users

## Class MemoryUserDatabaseFactory

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

- All Implemented Interfaces:
    ObjectFactory

      public class MemoryUserDatabaseFactory
      extends Object
      implements ObjectFactory

  JNDI object creation factory for `MemoryUserDatabase` instances. This makes it convenient to configure a user database in the global JNDI resources associated with this Catalina instance, and then link to that resource for web applications that administer the contents of the user database.

  The `MemoryUserDatabase` instance is configured based on the following parameter values:

  - pathname - Absolute or relative (to the directory path specified by the `catalina.base` system property) pathname to the XML file from which our user information is loaded, and to which it is stored. [conf/tomcat-users.xml]
  Since:
    4.1
  Author:
    Craig R. McClanahan

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `MemoryUserDatabaseFactory()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `Object` | `getObjectInstance(Object obj, Name name, Context nameCtx, Hashtable<?,?> environment)` Create and return a new `MemoryUserDatabase` instance that has been configured according to the properties of the specified `Reference`.

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

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

- - ### Constructor Detail

    - #### MemoryUserDatabaseFactory

          public MemoryUserDatabaseFactory()

  - ### Method Detail

    - #### getObjectInstance

          public Object getObjectInstance(Object obj,
                                 Name name,
                                 Context nameCtx,
                                 Hashtable<?,?> environment)
                                   throws Exception

      Create and return a new `MemoryUserDatabase` instance that has been configured according to the properties of the specified `Reference`. If you instance can be created, return `null` instead.

      Specified by:
        `getObjectInstance` in interface `ObjectFactory`
      Parameters:
        `obj` - The possibly null object containing location or reference information that can be used in creating an object
        `name` - The name of this object relative to `nameCtx`
        `nameCtx` - The context relative to which the `name` parameter is specified, or `null` if `name` is relative to the default initial context
        `environment` - The possibly null environment that is used in creating this object
      Throws:
        `Exception`

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