edu.ucsb.nceas.metacat.admin

## Class D1Admin

- java.lang.Object
- - edu.ucsb.nceas.metacat.admin.MetacatAdmin
  - - edu.ucsb.nceas.metacat.admin.D1Admin

-     public class D1Admin
      extends MetacatAdmin

  Control the display of the database configuration page and the processing of the configuration values.

- - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `configureDataONE(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)` Handle configuration of the database the first time that Metacat starts or when it is explicitly called.
    `static D1Admin` | `getInstance()` Get the single instance of D1Admin.
    `protected java.util.Vector<java.lang.String>` | `validateOptions(javax.servlet.http.HttpServletRequest request)` Validate the most important configuration options submitted by the user.

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

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

- - ### Method Detail

    - #### getInstance

          public static D1Admin getInstance()
                                     throws AdminException

      Get the single instance of D1Admin.
      Returns:
        the single instance of D1Admin
      Throws:
        `AdminException`

    - #### configureDataONE

          public void configureDataONE(javax.servlet.http.HttpServletRequest request,
                                       javax.servlet.http.HttpServletResponse response)
                                throws AdminException

      Handle configuration of the database the first time that Metacat starts or when it is explicitly called. Collect necessary update information from the administrator.
      Parameters:
        `request` - the http request information
        `response` - the http response to be sent back to the client
      Throws:
        `AdminException`

    - #### validateOptions

          protected java.util.Vector<java.lang.String> validateOptions(javax.servlet.http.HttpServletRequest request)

      Validate the most important configuration options submitted by the user.
      Specified by:
        `validateOptions` in class `MetacatAdmin`
      Returns:
        a vector holding error message for any fields that fail validation.

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