CommonsDbcpNativeJdbcExtractor (Spring Framework API 2.0) - Spring Framework 2.0.5 API 文档英文版

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org.springframework.jdbc.support.nativejdbc
Class CommonsDbcpNativeJdbcExtractor

java.lang.Object
  org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractorAdapter
      org.springframework.jdbc.support.nativejdbc.CommonsDbcpNativeJdbcExtractor

All Implemented Interfaces:: NativeJdbcExtractor

public class CommonsDbcpNativeJdbcExtractor
extends NativeJdbcExtractorAdapter
extends NativeJdbcExtractorAdapter

Implementation of the NativeJdbcExtractor interface for the Jakarta Commons DBCP connection pool.

Returns the underlying native Connection, Statement, etc to application code instead of DBCP's wrapper implementations. 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 Commons DBCP DataSource: If a given object is not a Commons DBCP wrapper, it will be returned as-is.

Tested against Commons DBCP 1.1 and 1.2, but should also work with 1.0. Before Commons DBCP 1.1, DelegatingCallableStatement and DelegatingResultSet have not offered any means to access underlying delegates: As a consequence, getNativeCallableStatement and getNativeResultSet will not work with Commons DBCP 1.0.

Note that this version of CommonsDbcpNativeJdbcExtractor will work against the original Commons DBCP in org.apache.commons.dbcp as well as against Tomcat 5.5's relocated Commons DBCP version in the org.apache.tomcat.dbcp.dbcp package.

Since:: 25.08.2003
Author:: Juergen Hoeller

Constructor Summary

CommonsDbcpNativeJdbcExtractor()


Method Summary

protected Connection doGetNativeConnection(Connection con)
          Not able to unwrap: return passed-in Connection.

CallableStatement getNativeCallableStatement(CallableStatement cs)
          Not able to unwrap: return passed-in CallableStatement.

PreparedStatement getNativePreparedStatement(PreparedStatement ps)
          Not able to unwrap: return passed-in PreparedStatement.

ResultSet getNativeResultSet(ResultSet rs)
          Not able to unwrap: return passed-in ResultSet.

Statement getNativeStatement(Statement stmt)
          Not able to unwrap: return passed-in Statement.

Methods inherited from class org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractorAdapter

getNativeConnection, getNativeConnectionFromStatement, isNativeConnectionNecessaryForNativeCallableStatements, isNativeConnectionNecessaryForNativePreparedStatements, isNativeConnectionNecessaryForNativeStatements

Methods inherited from class java.lang.Object

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

Constructor Summary
`CommonsDbcpNativeJdbcExtractor()`

Method Summary
`protected Connection`	`doGetNativeConnection(Connection con)` Not able to unwrap: return passed-in Connection.
`CallableStatement`	`getNativeCallableStatement(CallableStatement cs)` Not able to unwrap: return passed-in CallableStatement.
`PreparedStatement`	`getNativePreparedStatement(PreparedStatement ps)` Not able to unwrap: return passed-in PreparedStatement.
`ResultSet`	`getNativeResultSet(ResultSet rs)` Not able to unwrap: return passed-in ResultSet.
`Statement`	`getNativeStatement(Statement stmt)` Not able to unwrap: return passed-in Statement.

Methods inherited from class org.springframework.jdbc.support.nativejdbc.NativeJdbcExtractorAdapter
`getNativeConnection, getNativeConnectionFromStatement, isNativeConnectionNecessaryForNativeCallableStatements, isNativeConnectionNecessaryForNativePreparedStatements, isNativeConnectionNecessaryForNativeStatements`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

CommonsDbcpNativeJdbcExtractor

public CommonsDbcpNativeJdbcExtractor()

Method Detail