org.apache.commons.dbcp2.datasources

## Class PerUserPoolDataSource

- java.lang.Object
- - org.apache.commons.dbcp2.datasources.InstanceKeyDataSource
  - - org.apache.commons.dbcp2.datasources.PerUserPoolDataSource

- All Implemented Interfaces:
    Serializable, AutoCloseable, Wrapper, Referenceable, CommonDataSource, DataSource

      public class PerUserPoolDataSource
      extends InstanceKeyDataSource

  A pooling `DataSource` appropriate for deployment within J2EE environment. There are many configuration options, most of which are defined in the parent class. This datasource uses individual pools per user, and some properties can be set specifically for a given user, if the deployment environment can support initialization of mapped properties. So for example, a pool of admin or write-access Connections can be guaranteed a certain number of connections, separate from a maximum set for users with read-only connections.

  User passwords can be changed without re-initializing the datasource. When a `getConnection(userName, password)` request is processed with a password that is different from those used to create connections in the pool associated with `userName`, an attempt is made to create a new connection using the supplied password and if this succeeds, the existing pool is cleared and a new pool is created for connections using the new password.

  Since:
    2.0
  See Also:
    Serialized Form

- - ### Field Summary

    - ### Fields inherited from class org.apache.commons.dbcp2.datasources.InstanceKeyDataSource

      `UNKNOWN_TRANSACTIONISOLATION`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `PerUserPoolDataSource()` Default no-arg constructor for Serialization.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `clear()` Clears pool(s) maintained by this data source.
    `void` | `close()` Closes pool(s) maintained by this data source.
    `protected org.apache.commons.dbcp2.datasources.PooledConnectionManager` | `getConnectionManager(org.apache.commons.dbcp2.datasources.UserPassKey upKey)`
    `int` | `getNumActive()` Gets the number of active connections in the default pool.
    `int` | `getNumActive(String userName)` Gets the number of active connections in the pool for a given user.
    `int` | `getNumIdle()` Gets the number of idle connections in the default pool.
    `int` | `getNumIdle(String userName)` Gets the number of idle connections in the pool for a given user.
    `boolean` | `getPerUserBlockWhenExhausted(String userName)` Gets the user specific value for `BaseGenericObjectPool.getBlockWhenExhausted()` for the specified user's pool or the default if no user specific value is defined.
    `Boolean` | `getPerUserDefaultAutoCommit(String userName)` Gets the user specific default value for `Connection.setAutoCommit(boolean)` for the specified user's pool.
    `Boolean` | `getPerUserDefaultReadOnly(String userName)` Gets the user specific default value for `Connection.setReadOnly(boolean)` for the specified user's pool.
    `Integer` | `getPerUserDefaultTransactionIsolation(String userName)` Gets the user specific default value for `Connection.setTransactionIsolation(int)` for the specified user's pool.
    `String` | `getPerUserEvictionPolicyClassName(String userName)` Gets the user specific value for `BaseGenericObjectPool.getEvictionPolicyClassName()` for the specified user's pool or the default if no user specific value is defined.
    `boolean` | `getPerUserLifo(String userName)` Gets the user specific value for `BaseGenericObjectPool.getLifo()` for the specified user's pool or the default if no user specific value is defined.
    `int` | `getPerUserMaxIdle(String userName)` Gets the user specific value for `GenericObjectPool.getMaxIdle()` for the specified user's pool or the default if no user specific value is defined.
    `int` | `getPerUserMaxTotal(String userName)` Gets the user specific value for `BaseGenericObjectPool.getMaxTotal()` for the specified user's pool or the default if no user specific value is defined.
    `long` | `getPerUserMaxWaitMillis(String userName)` Gets the user specific value for `BaseGenericObjectPool.getMaxWaitMillis()` for the specified user's pool or the default if no user specific value is defined.
    `long` | `getPerUserMinEvictableIdleTimeMillis(String userName)` Gets the user specific value for `BaseGenericObjectPool.getMinEvictableIdleTimeMillis()` for the specified user's pool or the default if no user specific value is defined.
    `int` | `getPerUserMinIdle(String userName)` Gets the user specific value for `GenericObjectPool.getMinIdle()` for the specified user's pool or the default if no user specific value is defined.
    `int` | `getPerUserNumTestsPerEvictionRun(String userName)` Gets the user specific value for `BaseGenericObjectPool.getNumTestsPerEvictionRun()` for the specified user's pool or the default if no user specific value is defined.
    `long` | `getPerUserSoftMinEvictableIdleTimeMillis(String userName)` Gets the user specific value for `BaseGenericObjectPool.getSoftMinEvictableIdleTimeMillis()` for the specified user's pool or the default if no user specific value is defined.
    `boolean` | `getPerUserTestOnBorrow(String userName)` Gets the user specific value for `BaseGenericObjectPool.getTestOnBorrow()` for the specified user's pool or the default if no user specific value is defined.
    `boolean` | `getPerUserTestOnCreate(String userName)` Gets the user specific value for `BaseGenericObjectPool.getTestOnCreate()` for the specified user's pool or the default if no user specific value is defined.
    `boolean` | `getPerUserTestOnReturn(String userName)` Gets the user specific value for `BaseGenericObjectPool.getTestOnReturn()` for the specified user's pool or the default if no user specific value is defined.
    `boolean` | `getPerUserTestWhileIdle(String userName)` Gets the user specific value for `BaseGenericObjectPool.getTestWhileIdle()` for the specified user's pool or the default if no user specific value is defined.
    `long` | `getPerUserTimeBetweenEvictionRunsMillis(String userName)` Gets the user specific value for `BaseGenericObjectPool.getTimeBetweenEvictionRunsMillis()` for the specified user's pool or the default if no user specific value is defined.
    `protected org.apache.commons.dbcp2.datasources.PooledConnectionAndInfo` | `getPooledConnectionAndInfo(String userName, String password)`
    `Reference` | `getReference()` Returns a `PerUserPoolDataSource` `Reference`.
    `void` | `setPerUserBlockWhenExhausted(String userName, Boolean value)` Sets a user specific value for `BaseGenericObjectPool.getBlockWhenExhausted()` for the specified user's pool.
    `void` | `setPerUserDefaultAutoCommit(String userName, Boolean value)` Sets a user specific default value for `Connection.setAutoCommit(boolean)` for the specified user's pool.
    `void` | `setPerUserDefaultReadOnly(String userName, Boolean value)` Sets a user specific default value for `Connection.setReadOnly(boolean)` for the specified user's pool.
    `void` | `setPerUserDefaultTransactionIsolation(String userName, Integer value)` Sets a user specific default value for `Connection.setTransactionIsolation(int)` for the specified user's pool.
    `void` | `setPerUserEvictionPolicyClassName(String userName, String value)` Sets a user specific value for `BaseGenericObjectPool.getEvictionPolicyClassName()` for the specified user's pool.
    `void` | `setPerUserLifo(String userName, Boolean value)` Sets a user specific value for `BaseGenericObjectPool.getLifo()` for the specified user's pool.
    `void` | `setPerUserMaxIdle(String userName, Integer value)` Sets a user specific value for `GenericObjectPool.getMaxIdle()` for the specified user's pool.
    `void` | `setPerUserMaxTotal(String userName, Integer value)` Sets a user specific value for `BaseGenericObjectPool.getMaxTotal()` for the specified user's pool.
    `void` | `setPerUserMaxWaitMillis(String userName, Long value)` Sets a user specific value for `BaseGenericObjectPool.getMaxWaitMillis()` for the specified user's pool.
    `void` | `setPerUserMinEvictableIdleTimeMillis(String userName, Long value)` Sets a user specific value for `BaseGenericObjectPool.getMinEvictableIdleTimeMillis()` for the specified user's pool.
    `void` | `setPerUserMinIdle(String userName, Integer value)` Sets a user specific value for `GenericObjectPool.getMinIdle()` for the specified user's pool.
    `void` | `setPerUserNumTestsPerEvictionRun(String userName, Integer value)` Sets a user specific value for `BaseGenericObjectPool.getNumTestsPerEvictionRun()` for the specified user's pool.
    `void` | `setPerUserSoftMinEvictableIdleTimeMillis(String userName, Long value)` Sets a user specific value for `BaseGenericObjectPool.getSoftMinEvictableIdleTimeMillis()` for the specified user's pool.
    `void` | `setPerUserTestOnBorrow(String userName, Boolean value)` Sets a user specific value for `BaseGenericObjectPool.getTestOnBorrow()` for the specified user's pool.
    `void` | `setPerUserTestOnCreate(String userName, Boolean value)` Sets a user specific value for `BaseGenericObjectPool.getTestOnCreate()` for the specified user's pool.
    `void` | `setPerUserTestOnReturn(String userName, Boolean value)` Sets a user specific value for `BaseGenericObjectPool.getTestOnReturn()` for the specified user's pool.
    `void` | `setPerUserTestWhileIdle(String userName, Boolean value)` Sets a user specific value for `BaseGenericObjectPool.getTestWhileIdle()` for the specified user's pool.
    `void` | `setPerUserTimeBetweenEvictionRunsMillis(String userName, Long value)` Sets a user specific value for `()` for the specified user's pool.
    `protected void` | `setupDefaults(Connection con, String userName)`

    - ### Methods inherited from class org.apache.commons.dbcp2.datasources.InstanceKeyDataSource

      `assertInitializationAllowed, getConnection, getConnection, getConnectionPoolDataSource, getDataSourceName, getDefaultBlockWhenExhausted, getDefaultEvictionPolicyClassName, getDefaultLifo, getDefaultMaxIdle, getDefaultMaxTotal, getDefaultMaxWaitMillis, getDefaultMinEvictableIdleTimeMillis, getDefaultMinIdle, getDefaultNumTestsPerEvictionRun, getDefaultSoftMinEvictableIdleTimeMillis, getDefaultTestOnBorrow, getDefaultTestOnCreate, getDefaultTestOnReturn, getDefaultTestWhileIdle, getDefaultTimeBetweenEvictionRunsMillis, getDefaultTransactionIsolation, getDescription, getInstanceKey, getJndiEnvironment, getLoginTimeout, getLogWriter, getMaxConnLifetimeMillis, getParentLogger, getValidationQuery, getValidationQueryTimeout, isDefaultAutoCommit, isDefaultReadOnly, isRollbackAfterValidation, isWrapperFor, setConnectionPoolDataSource, setDataSourceName, setDefaultAutoCommit, setDefaultBlockWhenExhausted, setDefaultEvictionPolicyClassName, setDefaultLifo, setDefaultMaxIdle, setDefaultMaxTotal, setDefaultMaxWaitMillis, setDefaultMinEvictableIdleTimeMillis, setDefaultMinIdle, setDefaultNumTestsPerEvictionRun, setDefaultReadOnly, setDefaultSoftMinEvictableIdleTimeMillis, setDefaultTestOnBorrow, setDefaultTestOnCreate, setDefaultTestOnReturn, setDefaultTestWhileIdle, setDefaultTimeBetweenEvictionRunsMillis, setDefaultTransactionIsolation, setDescription, setJndiEnvironment, setLoginTimeout, setLogWriter, setMaxConnLifetimeMillis, setRollbackAfterValidation, setValidationQuery, setValidationQueryTimeout, testCPDS, toString, toStringFields, unwrap`

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

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

- - ### Constructor Detail

    - #### PerUserPoolDataSource

          public PerUserPoolDataSource()

      Default no-arg constructor for Serialization.

  - ### Method Detail

    - #### clear

          public void clear()

      Clears pool(s) maintained by this data source.
      Since:
        2.3.0
      See Also:
        `ObjectPool.clear()`

    - #### close

          public void close()

      Closes pool(s) maintained by this data source.
      Specified by:
        `close` in interface `AutoCloseable`
      Specified by:
        `close` in class `InstanceKeyDataSource`
      See Also:
        `ObjectPool.close()`

    - #### getConnectionManager

          protected org.apache.commons.dbcp2.datasources.PooledConnectionManager getConnectionManager(org.apache.commons.dbcp2.datasources.UserPassKey upKey)

      Specified by:
        `getConnectionManager` in class `InstanceKeyDataSource`

    - #### getNumActive

          public int getNumActive()

      Gets the number of active connections in the default pool.
      Returns:
        The number of active connections in the default pool.

    - #### getNumActive

          public int getNumActive(String userName)

      Gets the number of active connections in the pool for a given user.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getNumIdle

          public int getNumIdle()

      Gets the number of idle connections in the default pool.
      Returns:
        The number of idle connections in the default pool.

    - #### getNumIdle

          public int getNumIdle(String userName)

      Gets the number of idle connections in the pool for a given user.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserBlockWhenExhausted

          public boolean getPerUserBlockWhenExhausted(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getBlockWhenExhausted()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserDefaultAutoCommit

          public Boolean getPerUserDefaultAutoCommit(String userName)

      Gets the user specific default value for `Connection.setAutoCommit(boolean)` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserDefaultReadOnly

          public Boolean getPerUserDefaultReadOnly(String userName)

      Gets the user specific default value for `Connection.setReadOnly(boolean)` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserDefaultTransactionIsolation

          public Integer getPerUserDefaultTransactionIsolation(String userName)

      Gets the user specific default value for `Connection.setTransactionIsolation(int)` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserEvictionPolicyClassName

          public String getPerUserEvictionPolicyClassName(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getEvictionPolicyClassName()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserLifo

          public boolean getPerUserLifo(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getLifo()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserMaxIdle

          public int getPerUserMaxIdle(String userName)

      Gets the user specific value for `GenericObjectPool.getMaxIdle()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserMaxTotal

          public int getPerUserMaxTotal(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getMaxTotal()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserMaxWaitMillis

          public long getPerUserMaxWaitMillis(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getMaxWaitMillis()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserMinEvictableIdleTimeMillis

          public long getPerUserMinEvictableIdleTimeMillis(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getMinEvictableIdleTimeMillis()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserMinIdle

          public int getPerUserMinIdle(String userName)

      Gets the user specific value for `GenericObjectPool.getMinIdle()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserNumTestsPerEvictionRun

          public int getPerUserNumTestsPerEvictionRun(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getNumTestsPerEvictionRun()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserSoftMinEvictableIdleTimeMillis

          public long getPerUserSoftMinEvictableIdleTimeMillis(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getSoftMinEvictableIdleTimeMillis()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserTestOnBorrow

          public boolean getPerUserTestOnBorrow(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getTestOnBorrow()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserTestOnCreate

          public boolean getPerUserTestOnCreate(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getTestOnCreate()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserTestOnReturn

          public boolean getPerUserTestOnReturn(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getTestOnReturn()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserTestWhileIdle

          public boolean getPerUserTestWhileIdle(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getTestWhileIdle()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPerUserTimeBetweenEvictionRunsMillis

          public long getPerUserTimeBetweenEvictionRunsMillis(String userName)

      Gets the user specific value for `BaseGenericObjectPool.getTimeBetweenEvictionRunsMillis()` for the specified user's pool or the default if no user specific value is defined.
      Parameters:
        `userName` - The user name key.
      Returns:
        The user specific value.

    - #### getPooledConnectionAndInfo

          protected org.apache.commons.dbcp2.datasources.PooledConnectionAndInfo getPooledConnectionAndInfo(String userName,
                                                                                                            String password)
                                                                                                     throws SQLException

      Specified by:
        `getPooledConnectionAndInfo` in class `InstanceKeyDataSource`
      Throws:
        `SQLException`

    - #### getReference

          public Reference getReference()
                                 throws NamingException

      Returns a `PerUserPoolDataSource` `Reference`.
      Throws:
        `NamingException`

    - #### setPerUserBlockWhenExhausted

          public void setPerUserBlockWhenExhausted(String userName,
                                                   Boolean value)

      Sets a user specific value for `BaseGenericObjectPool.getBlockWhenExhausted()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserDefaultAutoCommit

          public void setPerUserDefaultAutoCommit(String userName,
                                                  Boolean value)

      Sets a user specific default value for `Connection.setAutoCommit(boolean)` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserDefaultReadOnly

          public void setPerUserDefaultReadOnly(String userName,
                                                Boolean value)

      Sets a user specific default value for `Connection.setReadOnly(boolean)` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserDefaultTransactionIsolation

          public void setPerUserDefaultTransactionIsolation(String userName,
                                                            Integer value)

      Sets a user specific default value for `Connection.setTransactionIsolation(int)` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserEvictionPolicyClassName

          public void setPerUserEvictionPolicyClassName(String userName,
                                                        String value)

      Sets a user specific value for `BaseGenericObjectPool.getEvictionPolicyClassName()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserLifo

          public void setPerUserLifo(String userName,
                                     Boolean value)

      Sets a user specific value for `BaseGenericObjectPool.getLifo()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserMaxIdle

          public void setPerUserMaxIdle(String userName,
                                        Integer value)

      Sets a user specific value for `GenericObjectPool.getMaxIdle()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserMaxTotal

          public void setPerUserMaxTotal(String userName,
                                         Integer value)

      Sets a user specific value for `BaseGenericObjectPool.getMaxTotal()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserMaxWaitMillis

          public void setPerUserMaxWaitMillis(String userName,
                                              Long value)

      Sets a user specific value for `BaseGenericObjectPool.getMaxWaitMillis()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserMinEvictableIdleTimeMillis

          public void setPerUserMinEvictableIdleTimeMillis(String userName,
                                                           Long value)

      Sets a user specific value for `BaseGenericObjectPool.getMinEvictableIdleTimeMillis()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserMinIdle

          public void setPerUserMinIdle(String userName,
                                        Integer value)

      Sets a user specific value for `GenericObjectPool.getMinIdle()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserNumTestsPerEvictionRun

          public void setPerUserNumTestsPerEvictionRun(String userName,
                                                       Integer value)

      Sets a user specific value for `BaseGenericObjectPool.getNumTestsPerEvictionRun()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserSoftMinEvictableIdleTimeMillis

          public void setPerUserSoftMinEvictableIdleTimeMillis(String userName,
                                                               Long value)

      Sets a user specific value for `BaseGenericObjectPool.getSoftMinEvictableIdleTimeMillis()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserTestOnBorrow

          public void setPerUserTestOnBorrow(String userName,
                                             Boolean value)

      Sets a user specific value for `BaseGenericObjectPool.getTestOnBorrow()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserTestOnCreate

          public void setPerUserTestOnCreate(String userName,
                                             Boolean value)

      Sets a user specific value for `BaseGenericObjectPool.getTestOnCreate()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserTestOnReturn

          public void setPerUserTestOnReturn(String userName,
                                             Boolean value)

      Sets a user specific value for `BaseGenericObjectPool.getTestOnReturn()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserTestWhileIdle

          public void setPerUserTestWhileIdle(String userName,
                                              Boolean value)

      Sets a user specific value for `BaseGenericObjectPool.getTestWhileIdle()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setPerUserTimeBetweenEvictionRunsMillis

          public void setPerUserTimeBetweenEvictionRunsMillis(String userName,
                                                              Long value)

      Sets a user specific value for `()` for the specified user's pool.
      Parameters:
        `userName` - The user name key.
        `value` - The user specific value.

    - #### setupDefaults

          protected void setupDefaults(Connection con,
                                       String userName)
                                throws SQLException

      Specified by:
        `setupDefaults` in class `InstanceKeyDataSource`
      Throws:
        `SQLException`

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