org.ow2.jonas.resource.internal.cm.sql
Class SQLConnectionInvocationHandler

java.lang.Object
  org.ow2.jonas.resource.internal.cm.sql.SQLConnectionInvocationHandler

All Implemented Interfaces:

java.lang.reflect.InvocationHandler

public class SQLConnectionInvocationHandler
extends java.lang.Object
implements java.lang.reflect.InvocationHandler

SQL Connection Wrapper

Author:

Eric Hardesty Contributor(s):

Constructor Summary

SQLConnectionInvocationHandler(java.lang.Object pConn, ManagedConnectionInfo pMci, SQLManager pConman, org.objectweb.util.monolog.api.Logger pTrace)
PreparedStatement wrapper

Method Summary

static java.lang.Object	createSQLWrapper(java.lang.Object pConn, ManagedConnectionInfo pMci, SQLManager pConman, org.objectweb.util.monolog.api.Logger pTrace) Returns a proxy for the sql Connection
java.lang.Object	invoke(java.lang.Object obj, java.lang.reflect.Method method, java.lang.Object[] aobj) Invoke call on the proxy
java.lang.Object	prepareStatement(java.lang.Class[] pTypes, java.lang.Object[] pValues) Invoke correct preparedStatement
java.lang.String	toString() Return a string describing this object

Methods inherited from class java.lang.Object

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

Constructor Detail

SQLConnectionInvocationHandler

public SQLConnectionInvocationHandler(java.lang.Object pConn,
                                      ManagedConnectionInfo pMci,
                                      SQLManager pConman,
                                      org.objectweb.util.monolog.api.Logger pTrace)
                               throws java.lang.Exception

PreparedStatement wrapper

Parameters:

pConn - JDBC connection object

pMci - ManagedConnectionInfo object associated with the connection

pConman - SQLManager object holding PreparedStatement cache

pTrace - Logger object to use

Throws:

java.lang.Exception - if an error occurs

Method Detail

createSQLWrapper

public static java.lang.Object createSQLWrapper(java.lang.Object pConn,
                                                ManagedConnectionInfo pMci,
                                                SQLManager pConman,
                                                org.objectweb.util.monolog.api.Logger pTrace)
                                         throws java.lang.Exception

Returns a proxy for the sql Connection

Parameters:

pConn - JDBC connection object

pMci - ManagedConnectionInfo object associated with the connection

pConman - SQLManager object holding PreparedStatement cache

pTrace - Logger object to use

Returns:

Object of the preparedStatement proxy

Throws:

java.lang.Exception - if an error occurs

invoke

public java.lang.Object invoke(java.lang.Object obj,
                               java.lang.reflect.Method method,
                               java.lang.Object[] aobj)
                        throws java.lang.Throwable

Invoke call on the proxy

Specified by:

invoke in interface java.lang.reflect.InvocationHandler

Parameters:

obj - the proxy instance that the method was invoked on

method - the Method instance

aobj - an array of objects containing the values of the arguments

Returns:

Object the returned from the method invocation on the proxy instance

Throws:

java.lang.Throwable - if an error occurs

prepareStatement

public java.lang.Object prepareStatement(java.lang.Class[] pTypes,
                                         java.lang.Object[] pValues)
                                  throws java.lang.Exception

Invoke correct preparedStatement

Parameters:

pTypes - Class [] of parameter types

pValues - Class [] of parameter values

Returns:

Object the result of invoking the preparedStatement

Throws:

java.lang.Exception - if any Exception occurs

toString

public java.lang.String toString()

Return a string describing this object

Overrides:

toString in class java.lang.Object

Returns:

String representing this object