HikariCP (created in 2012) seems promising, blows the doors off anything else I know of. In late 2017 Proxool, BoneCP, C3P0, DBCP are mostly defunct at this time. « Otherwise, String object is added to the pool and returns the reference.Įxample: String to verify Unique Object from pool. « If String-copy is available in the Pool then returns the reference. When the intern method is invoked, it check object availability with same content in pool using equals method. String literal pool maintains only one copy of each distinct string value.Object clean-up is not required as we are using same Object, reducing the Garbage collection load.It improves the application performance & memory.Pooling Mechanism is the way of creating the Objects in advance.In that case, you'll need to configure it (refer to the documentation of your application server) and to retrieve a DataSource via JNDI: DataSource ds = (DataSource) new InitialContext().lookup("jdbc/myDS") The DataSource cpds is now a fully configured and usable pooled DataSourceīut if you are running inside an application server, I would recommend to use the built-in connection pool it provides. the settings below are optional - c3p0 can work with defaults From the documentation: ComboPooledDataSource cpds = new ComboPooledDataSource() Ĭpds.setDriverClass( "" ) //loads the jdbc driverĬpds.setJdbcUrl( "jdbc:postgresql://localhost/testdb" ) If you need a standalone connection pool, my preference goes to C3P0 over DBCP (that I've mentioned in this previous answer), I just had too much problems with DBCP under heavy load.
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December 2022
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