C3p0 configuration in spring

<Bean id = "c3p0datasource" class = "com. mchange. v2.c3p0. combopooleddatasource" Destroy-method = "close">
<Property name = "driverclass">
<Value >$ {JDBC. driverclassname} </value>
</Property>
<Property name = "jdbcurl">
<Value >$ {JDBC. url} </value>
</Property>
<Property name = "user">
<Value >$ {JDBC. Username} </value>
</Property>
<Property name = "password">
<Value >$ {JDBC. Password} </value>
</Property>
<Property name = "initialpoolsize"> <value> 10 </value> </property>
<Property name = "minpoolsize"> <value> 5 </value> </property>
<Property name = "maxpoolsize"> <value> 30 </value> </property>
<Property name = "acquireincrement"> <value> 5 </value> </property>
<Property name = "maxidletime"> <value> 10 </value> </property>
<Property name = "maxstatements"> <value> 0 </value> </property>
</Bean>

The following parameters are the basic configuration parameters used:
Initialpoolsize:
Number of connections a pool will try to acquire upon startup. shocould be between minpoolsize and maxpoolsize
Number of links obtained during connection pool initialization, between minpoolsize and maxpoolsize

Minpoolsize:
Minimum number of connections a pool will maintain at any given time.
Minimum number of links

Maxpoolsize:
Maximum number of connections a pool will maintain at any given time.
Max connections

Acquireincrement:
Determines how many connections at a time c3p0 will try to acquire when the pool is exhausted.
The number of new connections obtained at a time when the current number of connections is exhausted

maxidletime:
seconds a connection can remain pooled but unused before being discarded. zero means idle connections never expire.
maximum idle time, in seconds. Useless links are recycled after they expire.