```
public interface ConnectionCallback<T>
```
Generic callback interface for code that operates on a CCI Connection. Allows to execute any number of operations on a single Connection, using any type and number of Interaction.
This is particularly useful for delegating to existing data access code that expects a Connection to work on and throws ResourceException. For newly written code, it is strongly recommended to use CciTemplate's more specific execute variants.
从以下版本开始:
1.2
作者:
Thierry Templier, Juergen Hoeller
另请参阅:
CciTemplate.execute(ConnectionCallback), CciTemplate.execute(javax.resource.cci.InteractionSpec, javax.resource.cci.Record), CciTemplate.execute(javax.resource.cci.InteractionSpec, RecordCreator, RecordExtractor)

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`T`	`doInConnection(Connection connection, ConnectionFactory connectionFactory)`	Gets called by `CciTemplate.execute` with an active CCI Connection.

- 方法详细资料
  - doInConnection
```
T doInConnection(Connection connection,
                 ConnectionFactory connectionFactory)
          throws ResourceException,
                 SQLException,
                 DataAccessException
```
    Gets called by CciTemplate.execute with an active CCI Connection. Does not need to care about activating or closing the Connection, or handling transactions.
    If called without a thread-bound CCI transaction (initiated by CciLocalTransactionManager), the code will simply get executed on the CCI Connection with its transactional semantics. If CciTemplate is configured to use a JTA-aware ConnectionFactory, the CCI Connection and thus the callback code will be transactional if a JTA transaction is active.
    Allows for returning a result object created within the callback, i.e. a domain object or a collection of domain objects. Note that there's special support for single step actions: see the CciTemplate.execute variants. A thrown RuntimeException is treated as application exception: it gets propagated to the caller of the template.
    参数:
    connection - active CCI Connection
    connectionFactory - the CCI ConnectionFactory that the Connection was created with (gives access to RecordFactory and ResourceAdapterMetaData)
    返回:
    a result object, or null if none
    抛出:
    ResourceException - if thrown by a CCI method, to be auto-converted to a DataAccessException
    SQLException - if thrown by a ResultSet method, to be auto-converted to a DataAccessException
    DataAccessException - in case of custom exceptions
    另请参阅:
    ConnectionFactory.getRecordFactory(), ConnectionFactory.getMetaData(), CciTemplate.execute(javax.resource.cci.InteractionSpec, RecordCreator, RecordExtractor)

接口 ConnectionCallback<T>

方法概要

方法详细资料

doInConnection