com.github.paganini2008.devtools.objectpool.dbpool

类 PreparedStatementCache

java.lang.Object

com.github.paganini2008.devtools.objectpool.dbpool.PreparedStatementCache

public class PreparedStatementCache
extends Object

Build a PreparedStatementCache for each connection.

从以下版本开始:

2.0.1

作者:

Fred Feng

字段概要

字段

限定符和类型	字段和说明
private LruMap<String,PooledPreparedStatement>	cache
private DailyQueryStatistics	queryStatistics

构造器概要

构造器

构造器和说明
PreparedStatementCache(int maxSize, DailyQueryStatistics queryStatistics) To create a PreparedStatementCache with a LruMap

方法概要

限定符和类型	方法和说明
protected PooledPreparedStatement	createObject(String sql, Connection connection, Method method, Object[] args) Create a PooledPreparedStatement object
void	destroy() Destroy the cache
void	giveback(String sql, PooledPreparedStatement pps)
int	size()
PooledPreparedStatement	take(String sql, Connection connection, Method method, Object[] args)

从类继承的方法 java.lang.Object

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

字段详细资料

cache

private final LruMap<String,PooledPreparedStatement> cache

queryStatistics

private final DailyQueryStatistics queryStatistics

构造器详细资料

PreparedStatementCache

public PreparedStatementCache(int maxSize,
                              DailyQueryStatistics queryStatistics)

To create a PreparedStatementCache with a LruMap

参数:

maxSize - lruCache's size

方法详细资料

destroy

public void destroy()

Destroy the cache

size

public int size()

giveback

public void giveback(String sql,
                     PooledPreparedStatement pps)
              throws SQLException

抛出:

SQLException

take

public PooledPreparedStatement take(String sql,
                                    Connection connection,
                                    Method method,
                                    Object[] args)
                             throws SQLException

抛出:

SQLException

createObject

protected PooledPreparedStatement createObject(String sql,
                                               Connection connection,
                                               Method method,
                                               Object[] args)
                                        throws SQLException

Create a PooledPreparedStatement object

参数:

sql -

connection -

method -

args -

返回:

抛出:

SQLException