I think you're a little confused.  Abator is a code generator - it does not
come into play in your application after the code is generated.  In the
configuration you're showing, the "Pool.*" properties are ignored - Abator
does not utilize connection pooling.

However, you can set these properties in an *iBATIS* configuration file.
You should set them in the <dataSource> section like this:

<transactionManager type="JDBC" >
 <dataSource type="SIMPLE">
   <property name="JDBC.Driver" value="${driver}"/>
   <property name="JDBC.ConnectionURL" value="${url}"/>
   <property name="JDBC.Username" value="${username}"/>
   <property name="JDBC.Password" value="${password}"/>
   <property name="JDBC.DefaultAutoCommit" value="true" />
   <property name="Pool.TimeToWait" value="500"/>
   <property name="Pool.PingQuery" value="SELECT 1 FROM DUAL"/>
   <property name="Pool.PingEnabled" value="true"/>
   <property name="Pool.PingConnectionsOlderThan" value="3600000"/>
   <property name="Pool.PingConnectionsNotUsedFor" value="3600000"/>
 </dataSource>
</transactionManager>

Jeff Butler


On 1/11/07, Thomas Karl Schwaerzler <[EMAIL PROTECTED]> wrote:

hi there again,

i have ibatis/abator included in my web application using struts.

everything is running great until now, but when i came to my testserver
this morning i got the follwoing error
when doing any request that needs access to database:

...
Caused by: java.sql.SQLException: No more data to read from socket
        at
oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
        at
oracle.jdbc.driver.DatabaseError.throwSqlException (DatabaseError.java
:146)
        at
oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:208)
        at
oracle.jdbc.driver.T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1118)
        at
oracle.jdbc.driver.T4CMAREngine.unmarshalSB1(T4CMAREngine.java:1070)
        at
oracle.jdbc.driver.T4C7Ocommoncall.receive(T4C7Ocommoncall.java:106)
        at
oracle.jdbc.driver.T4CConnection.doRollback (T4CConnection.java:567)
...



..as far as know this error is caused by a connection timout at the
database connection.

i thought, that configuring a 'PingQuery' would prevent this by continuing

sending kinda pings on the connection
in case nothing else happens to keep it up.
therefore i configured abator as follows:

        <jdbcConnection
                        driverClass=" oracle.jdbc.driver.OracleDriver"
                        connectionURL="jdbc:oracle:thin:xxxxxxxxxxxxxxxxx"
                        userId="xxxxxxxx"
                        password="xxxxxx"
                >
                <classPathEntry location="xxxxxxxxx/ojdbc14.jar" />
                   <property name="Pool.TimeToWait" value="500"/>
           <property name="Pool.PingQuery" value="SELECT 1 FROM DUAL"/>
           <property name="Pool.PingEnabled" value="true"/>
           <!--  time in millisecs 3600000 = 1h -->
           <property name="Pool.PingConnectionsOlderThan"
value="3600000"/>
           <property name="Pool.PingConnectionsNotUsedFor"
value="3600000"/>
        </jdbcConnection>




i expected this configuration of abator to do pings every hour, which
should be enough to keep the connection to
database alive.

why does abator/ibatis not behave as i expect?
is there a possibility to check if the ping really happens?


thanks in advance
tom.


Reply via email to