SmartDataSource (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.jdbc.datasource
Interface SmartDataSource

All Superinterfaces:: CommonDataSource, DataSource, Wrapper

All Known Implementing Classes:: SingleConnectionDataSource

public interface SmartDataSource
extends DataSource
extends DataSource

Extension of the javax.sql.DataSource interface, to be implemented by special DataSources that return JDBC Connections in an unwrapped fashion.

Classes using this interface can query whether or not the Connection should be closed after an operation. Spring's DataSourceUtils and JdbcTemplate classes automatically perform such a check.

Author:: Rod Johnson, Juergen Hoeller
See Also:: SingleConnectionDataSource.shouldClose(java.sql.Connection), DataSourceUtils.releaseConnection(java.sql.Connection, javax.sql.DataSource), JdbcTemplate

Method Summary

boolean shouldClose(Connection con)
Should we close this Connection, obtained from this DataSource?

Methods inherited from interface javax.sql.DataSource

getConnection, getConnection

Methods inherited from interface javax.sql.CommonDataSource

getLoginTimeout, getLogWriter, setLoginTimeout, setLogWriter

Methods inherited from interface java.sql.Wrapper

isWrapperFor, unwrap

Method Summary
`boolean`	`shouldClose(Connection con)` Should we close this Connection, obtained from this DataSource?

Methods inherited from interface javax.sql.DataSource
`getConnection, getConnection`

Methods inherited from interface javax.sql.CommonDataSource
`getLoginTimeout, getLogWriter, setLoginTimeout, setLogWriter`

Methods inherited from interface java.sql.Wrapper
`isWrapperFor, unwrap`

Method Detail

shouldClose

boolean shouldClose(Connection con)

Should we close this Connection, obtained from this DataSource?

Code that uses Connections from a SmartDataSource should always perform a check via this method before invoking close().

Note that the JdbcTemplate class in the 'jdbc.core' package takes care of releasing JDBC Connections, freeing application code of this responsibility.

Parameters:: con - the Connection to check
Returns:: whether the given Connection should be closed
See Also:: Connection.close()