c3p0 connection pool configuration

c3p0-config.xml

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
  <property name="driverClass" value="${jdbc.driverClassName}"/>
  <property name="jdbcUrl" value="${jdbc.url}"/>
  <property name="user" value="${jdbc.username}"/>
  <property name="password" value="${jdbc.password}"/>
  <property name="minPoolSize" value="10"/>
  <property name="maxPoolSize" value="50"/>
  <property name="acquireIncrement" value="1"/>
  <property name="idleConnectionTestPeriod" value="1000"/>
  <property name="maxStatements" value="250"/>
  <property name="checkoutTimeout" value="60000"/>
  <property name="initialPoolSize" value="10" />
</bean>