org.jbpm.services.task.identity

## Class DBUserGroupCallbackImpl

- java.lang.Object
- - org.jbpm.services.task.identity.AbstractUserGroupInfo
  - - org.jbpm.services.task.identity.DBUserGroupCallbackImpl

- All Implemented Interfaces:
    org.kie.api.task.UserGroupCallback

      public class DBUserGroupCallbackImpl
      extends AbstractUserGroupInfo
      implements org.kie.internal.task.api.UserGroupCallback

  Data base server user group callback implementation that utilizes SQL queries to get information about user, groups and relationship of these two.
  There are four configuration parameters required by this callback:
  - db.ds.jndi.name - JNDI name of the data source to be used for connections
  - db.user.query - query used to verify existence of the user (case sensitive, expects a single parameter on position 1)
  - db.roles.query - query user to check group existence (case sensitive, expects single parameter on position 1)
  - db.user.roles.query - query used to collect group for given user (case sensitive, expects single parameter on position 1, retrieves group name from position 1 of returned result set)

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected static String` | `DEFAULT_PROPERTIES_NAME`
    `static String` | `DS_JNDI_NAME`
    `static String` | `PRINCIPAL_QUERY`
    `static String` | `ROLES_QUERY`
    `static String` | `USER_ROLES_QUERY`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `DBUserGroupCallbackImpl(boolean activate)`
    `DBUserGroupCallbackImpl(Properties config)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected boolean` | `checkExistence(String querySql, String parameter)`
    `boolean` | `existsGroup(String groupId)`
    `boolean` | `existsUser(String userId)`
    `protected Connection` | `getConnection()`
    `List<String>` | `getGroupsForUser(String userId)`

    - ### Methods inherited from class org.jbpm.services.task.identity.AbstractUserGroupInfo

      `readProperties`

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

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

- - ### Field Detail

    - #### DEFAULT_PROPERTIES_NAME

          protected static final String DEFAULT_PROPERTIES_NAME

      See Also:
        Constant Field Values

    - #### DS_JNDI_NAME

          public static final String DS_JNDI_NAME

      See Also:
        Constant Field Values

    - #### PRINCIPAL_QUERY

          public static final String PRINCIPAL_QUERY

      See Also:
        Constant Field Values

    - #### USER_ROLES_QUERY

          public static final String USER_ROLES_QUERY

      See Also:
        Constant Field Values

    - #### ROLES_QUERY

          public static final String ROLES_QUERY

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### DBUserGroupCallbackImpl

          public DBUserGroupCallbackImpl(boolean activate)

    - #### DBUserGroupCallbackImpl

          public DBUserGroupCallbackImpl(Properties config)

  - ### Method Detail

    - #### existsUser

          public boolean existsUser(String userId)

      Specified by:
        `existsUser` in interface `org.kie.api.task.UserGroupCallback`

    - #### existsGroup

          public boolean existsGroup(String groupId)

      Specified by:
        `existsGroup` in interface `org.kie.api.task.UserGroupCallback`

    - #### getGroupsForUser

          public List<String> getGroupsForUser(String userId)

      Specified by:
        `getGroupsForUser` in interface `org.kie.api.task.UserGroupCallback`

    - #### getConnection

          protected Connection getConnection()
                                      throws SQLException

      Throws:
        `SQLException`

    - #### checkExistence

          protected boolean checkExistence(String querySql,
                                           String parameter)

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