BasicManagedDataSource (Apache Tomcat 9.0.37 API Documentation)

org.apache.tomcat.dbcp.dbcp2.managed

## Class BasicManagedDataSource

- java.lang.Object
- - org.apache.tomcat.dbcp.dbcp2.BasicDataSource
  - - org.apache.tomcat.dbcp.dbcp2.managed.BasicManagedDataSource

- All Implemented Interfaces:
    AutoCloseable, Wrapper, MBeanRegistration, CommonDataSource, DataSource, BasicDataSourceMXBean

      public class BasicManagedDataSource
      extends BasicDataSource

  BasicManagedDataSource is an extension of BasicDataSource which creates ManagedConnections. This data source can create either full two-phase-commit XA connections or one-phase-commit local connections. Both types of connections are committed or rolled back as part of the global transaction (a.k.a. XA transaction or JTA Transaction), but only XA connections can be recovered in the case of a system crash.

  BasicManagedDataSource adds the TransactionManager and XADataSource properties. The TransactionManager property is required and is used to enlist connections in global transactions. The XADataSource is optional and if set is the class name of the XADataSource class for a two-phase-commit JDBC driver. If the XADataSource property is set, the driverClassName is ignored and a DataSourceXAConnectionFactory is created. Otherwise, a standard DriverConnectionFactory is created and wrapped with a LocalXAConnectionFactory.

  Since:
    2.0
  See Also:
    `BasicDataSource`, `ManagedConnection`

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `BasicManagedDataSource()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected ConnectionFactory` | `createConnectionFactory()` Creates a JDBC connection factory for this datasource.
    `protected DataSource` | `createDataSourceInstance()` Creates the actual data source instance.
    `protected PoolableConnectionFactory` | `createPoolableConnectionFactory(ConnectionFactory driverConnectionFactory)` Creates the PoolableConnectionFactory and attaches it to the connection pool.
    `TransactionManager` | `getTransactionManager()` Gets the required transaction manager property.
    `protected TransactionRegistry` | `getTransactionRegistry()` Gets the transaction registry.
    `TransactionSynchronizationRegistry` | `getTransactionSynchronizationRegistry()` Gets the optional TransactionSynchronizationRegistry.
    `String` | `getXADataSource()` Gets the optional XADataSource class name.
    `XADataSource` | `getXaDataSourceInstance()` Gets the XADataSource instance used by the XAConnectionFactory.
    `void` | `setTransactionManager(TransactionManager transactionManager)` Sets the required transaction manager property.
    `void` | `setTransactionSynchronizationRegistry(TransactionSynchronizationRegistry transactionSynchronizationRegistry)` Sets the optional TransactionSynchronizationRegistry property.
    `void` | `setXADataSource(String xaDataSource)` Sets the optional XADataSource class name.
    `void` | `setXaDataSourceInstance(XADataSource xaDataSourceInstance)` Sets the XADataSource instance used by the XAConnectionFactory.

    - ### Methods inherited from class org.apache.tomcat.dbcp.dbcp2.BasicDataSource

      `addConnectionProperty, close, createConnectionPool, createDataSource, createObjectPool, evict, getAbandonedLogWriter, getAbandonedUsageTracking, getAutoCommitOnReturn, getCacheState, getConnection, getConnection, getConnectionFactoryClassName, getConnectionInitSqls, getConnectionInitSqlsAsArray, getConnectionPool, getDefaultAutoCommit, getDefaultCatalog, getDefaultQueryTimeout, getDefaultReadOnly, getDefaultSchema, getDefaultTransactionIsolation, getDisconnectionSqlCodes, getDisconnectionSqlCodesAsArray, getDriver, getDriverClassLoader, getDriverClassName, getEnableAutoCommitOnReturn, getEvictionPolicyClassName, getFastFailValidation, getInitialSize, getJmxName, getLifo, getLogAbandoned, getLogExpiredConnections, getLoginTimeout, getLogWriter, getMaxConnLifetimeMillis, getMaxIdle, getMaxOpenPreparedStatements, getMaxTotal, getMaxWaitMillis, getMinEvictableIdleTimeMillis, getMinIdle, getNumActive, getNumIdle, getNumTestsPerEvictionRun, getParentLogger, getPassword, getRegisteredJmxName, getRemoveAbandonedOnBorrow, getRemoveAbandonedOnMaintenance, getRemoveAbandonedTimeout, getRollbackOnReturn, getSoftMinEvictableIdleTimeMillis, getTestOnBorrow, getTestOnCreate, getTestOnReturn, getTestWhileIdle, getTimeBetweenEvictionRunsMillis, getUrl, getUsername, getValidationQuery, getValidationQueryTimeout, invalidateConnection, isAccessToUnderlyingConnectionAllowed, isClosed, isPoolPreparedStatements, isWrapperFor, log, log, postDeregister, postRegister, preDeregister, preRegister, removeConnectionProperty, setAbandonedLogWriter, setAbandonedUsageTracking, setAccessToUnderlyingConnectionAllowed, setAutoCommitOnReturn, setCacheState, setConnectionFactoryClassName, setConnectionInitSqls, setConnectionProperties, setDefaultAutoCommit, setDefaultCatalog, setDefaultQueryTimeout, setDefaultReadOnly, setDefaultSchema, setDefaultTransactionIsolation, setDisconnectionSqlCodes, setDriver, setDriverClassLoader, setDriverClassName, setEnableAutoCommitOnReturn, setEvictionPolicyClassName, setFastFailValidation, setInitialSize, setJmxName, setLifo, setLogAbandoned, setLogExpiredConnections, setLoginTimeout, setLogWriter, setMaxConnLifetimeMillis, setMaxIdle, setMaxOpenPreparedStatements, setMaxTotal, setMaxWaitMillis, setMinEvictableIdleTimeMillis, setMinIdle, setNumTestsPerEvictionRun, setPassword, setPoolPreparedStatements, setRemoveAbandonedOnBorrow, setRemoveAbandonedOnMaintenance, setRemoveAbandonedTimeout, setRollbackOnReturn, setSoftMinEvictableIdleTimeMillis, setTestOnBorrow, setTestOnCreate, setTestOnReturn, setTestWhileIdle, setTimeBetweenEvictionRunsMillis, setUrl, setUsername, setValidationQuery, setValidationQueryTimeout, startPoolMaintenance, unwrap, validateConnectionFactory`

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

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

- - ### Constructor Detail

    - #### BasicManagedDataSource

          public BasicManagedDataSource()

  - ### Method Detail

    - #### getXaDataSourceInstance

          public XADataSource getXaDataSourceInstance()

      Gets the XADataSource instance used by the XAConnectionFactory.
      Returns:
        the XADataSource

    - #### setXaDataSourceInstance

          public void setXaDataSourceInstance(XADataSource xaDataSourceInstance)

      Sets the XADataSource instance used by the XAConnectionFactory.

      Note: this method currently has no effect once the pool has been initialized. The pool is initialized the first time one of the following methods is invoked: `getConnection, setLogwriter, setLoginTimeout, getLoginTimeout, getLogWriter.`

      Parameters:
        `xaDataSourceInstance` - XADataSource instance

    - #### getTransactionManager

          public TransactionManager getTransactionManager()

      Gets the required transaction manager property.
      Returns:
        the transaction manager used to enlist connections

    - #### getTransactionSynchronizationRegistry

          public TransactionSynchronizationRegistry getTransactionSynchronizationRegistry()

      Gets the optional TransactionSynchronizationRegistry.
      Returns:
        the TSR that can be used to register synchronizations.
      Since:
        2.6.0

    - #### getTransactionRegistry

          protected TransactionRegistry getTransactionRegistry()

      Gets the transaction registry.
      Returns:
        the transaction registry associating XAResources with managed connections

    - #### setTransactionManager

          public void setTransactionManager(TransactionManager transactionManager)

      Sets the required transaction manager property.
      Parameters:
        `transactionManager` - the transaction manager used to enlist connections

    - #### setTransactionSynchronizationRegistry

          public void setTransactionSynchronizationRegistry(TransactionSynchronizationRegistry transactionSynchronizationRegistry)

      Sets the optional TransactionSynchronizationRegistry property.
      Parameters:
        `transactionSynchronizationRegistry` - the TSR used to register synchronizations
      Since:
        2.6.0

    - #### getXADataSource

          public String getXADataSource()

      Gets the optional XADataSource class name.
      Returns:
        the optional XADataSource class name

    - #### setXADataSource

          public void setXADataSource(String xaDataSource)

      Sets the optional XADataSource class name.
      Parameters:
        `xaDataSource` - the optional XADataSource class name

    - #### createConnectionFactory

          protected ConnectionFactory createConnectionFactory()
                                                       throws SQLException

      Description copied from class: `BasicDataSource`
      Creates a JDBC connection factory for this datasource. The JDBC driver is loaded using the following algorithm:
      1. If a Driver instance has been specified via `BasicDataSource.setDriver(Driver)` use it
      2. If no Driver instance was specified and `BasicDataSource.driverClassName` is specified that class is loaded using the `ClassLoader` of this class or, if `BasicDataSource.driverClassLoader` is set, `BasicDataSource.driverClassName` is loaded with the specified `ClassLoader`.
      3. If `BasicDataSource.driverClassName` is specified and the previous attempt fails, the class is loaded using the context class loader of the current thread.
      4. If a driver still isn't loaded one is loaded via the `DriverManager` using the specified `BasicDataSource.url`.

      This method exists so subclasses can replace the implementation class.

      Overrides:
        `createConnectionFactory` in class `BasicDataSource`
      Returns:
        A new connection factory.
      Throws:
        `SQLException` - If the connection factort cannot be created

    - #### createDataSourceInstance

          protected DataSource createDataSourceInstance()
                                                 throws SQLException

      Description copied from class: `BasicDataSource`
      Creates the actual data source instance. This method only exists so that subclasses can replace the implementation class.
      Overrides:
        `createDataSourceInstance` in class `BasicDataSource`
      Returns:
        A new DataSource instance
      Throws:
        `SQLException` - if unable to create a datasource instance

    - #### createPoolableConnectionFactory

          protected PoolableConnectionFactory createPoolableConnectionFactory(ConnectionFactory driverConnectionFactory)
                                                                       throws SQLException

      Creates the PoolableConnectionFactory and attaches it to the connection pool.
      Overrides:
        `createPoolableConnectionFactory` in class `BasicDataSource`
      Parameters:
        `driverConnectionFactory` - JDBC connection factory created by `createConnectionFactory()`
      Returns:
        A new PoolableConnectionFactory configured with the current configuration of this BasicDataSource
      Throws:
        `SQLException` - if an error occurs creating the PoolableConnectionFactory

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