java.lang.Object
- org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractorAdapter
- - org.springframework.jdbc.support.nativejdbc.C3P0NativeJdbcExtractor

所有已实现的接口:
NativeJdbcExtractor
```
public class C3P0NativeJdbcExtractor
extends NativeJdbcExtractorAdapter
```
Implementation of the NativeJdbcExtractor interface for the C3P0 connection pool.
Returns underlying native Connections to application code instead of C3P0's wrapper implementations; unwraps the Connection for native Statements. The returned JDBC classes can then safely be cast, e.g. to oracle.jdbc.OracleConnection.
This NativeJdbcExtractor can be set just to allow working with a C3P0 DataSource: If a given object is not a C3P0 wrapper, it will be returned as-is.
Note that this class requires C3P0 0.8.5 or later; for earlier C3P0 versions, use SimpleNativeJdbcExtractor (which won't work for C3P0 0.8.5 or later).
从以下版本开始:
1.1.5
作者:
Juergen Hoeller
另请参阅:
C3P0ProxyConnection.rawConnectionOperation(java.lang.reflect.Method, java.lang.Object, java.lang.Object[]), SimpleNativeJdbcExtractor

构造器概要
构造器
构造器说明
C3P0NativeJdbcExtractor()

方法概要

所有方法静态方法实例方法具体方法
修饰符和类型	方法	说明
`protected Connection`	`doGetNativeConnection(Connection con)`	Retrieve the Connection via C3P0's `rawConnectionOperation` API, using the `getRawConnection` as callback to get access to the raw Connection (which is otherwise not directly supported by C3P0).
`static Connection`	`getRawConnection(Connection con)`	This method is not meant to be used directly; it rather serves as callback method for C3P0's "rawConnectionOperation" API.
`boolean`	`isNativeConnectionNecessaryForNativeCallableStatements()`	Return `false` by default.
`boolean`	`isNativeConnectionNecessaryForNativePreparedStatements()`	Return `false` by default.
`boolean`	`isNativeConnectionNecessaryForNativeStatements()`	Return `false` by default.

从类继承的方法 org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractorAdapter
getNativeCallableStatement, getNativeConnection, getNativeConnectionFromStatement, getNativePreparedStatement, getNativeResultSet, getNativeStatement

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - C3P0NativeJdbcExtractor
```
public C3P0NativeJdbcExtractor()
```
- 方法详细资料
  - getRawConnection
```
public static Connection getRawConnection(Connection con)
```
    This method is not meant to be used directly; it rather serves as callback method for C3P0's "rawConnectionOperation" API.
    参数:
    con - a native Connection handle
    返回:
    the native Connection handle, as-is
  - isNativeConnectionNecessaryForNativeStatements
```
public boolean isNativeConnectionNecessaryForNativeStatements()
```
    从类复制的说明: NativeJdbcExtractorAdapter
    Return false by default.
    指定者:
    isNativeConnectionNecessaryForNativeStatements 在接口中 NativeJdbcExtractor
    覆盖:
    isNativeConnectionNecessaryForNativeStatements 在类中 NativeJdbcExtractorAdapter
  - isNativeConnectionNecessaryForNativePreparedStatements
```
public boolean isNativeConnectionNecessaryForNativePreparedStatements()
```
    从类复制的说明: NativeJdbcExtractorAdapter
    Return false by default.
    指定者:
    isNativeConnectionNecessaryForNativePreparedStatements 在接口中 NativeJdbcExtractor
    覆盖:
    isNativeConnectionNecessaryForNativePreparedStatements 在类中 NativeJdbcExtractorAdapter
  - isNativeConnectionNecessaryForNativeCallableStatements
```
public boolean isNativeConnectionNecessaryForNativeCallableStatements()
```
    从类复制的说明: NativeJdbcExtractorAdapter
    Return false by default.
    指定者:
    isNativeConnectionNecessaryForNativeCallableStatements 在接口中 NativeJdbcExtractor
    覆盖:
    isNativeConnectionNecessaryForNativeCallableStatements 在类中 NativeJdbcExtractorAdapter
  - doGetNativeConnection
```
protected Connection doGetNativeConnection(Connection con)
                                    throws SQLException
```
    Retrieve the Connection via C3P0's rawConnectionOperation API, using the getRawConnection as callback to get access to the raw Connection (which is otherwise not directly supported by C3P0).
    覆盖:
    doGetNativeConnection 在类中 NativeJdbcExtractorAdapter
    抛出:
    SQLException
    另请参阅:
    getRawConnection(java.sql.Connection)

类 C3P0NativeJdbcExtractor

构造器概要

方法概要

从类继承的方法 org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractorAdapter

从类继承的方法 java.lang.Object

构造器详细资料

C3P0NativeJdbcExtractor

方法详细资料

getRawConnection

isNativeConnectionNecessaryForNativeStatements

isNativeConnectionNecessaryForNativePreparedStatements

isNativeConnectionNecessaryForNativeCallableStatements

doGetNativeConnection