org.dbmaintain.datasource
Class SimpleDataSource.SimpleDataSourceInvocationHandler

java.lang.Object
  org.dbmaintain.datasource.SimpleDataSource.SimpleDataSourceInvocationHandler

All Implemented Interfaces:

InvocationHandler

Enclosing class:

SimpleDataSource

protected static class SimpleDataSource.SimpleDataSourceInvocationHandler
extends Object
implements InvocationHandler

Invocation handler for a dynamic proxy that implements the javax.sql.DataSource interface. This invocation handler implements the getConnection method: this method will create a new database connection to the database configured with the driverClassName, url, userName and password given with the constructor invocation.

Constructor Summary

protected

SimpleDataSource.SimpleDataSourceInvocationHandler(String driverClassName, String url, String userName, String password)

Method Summary

protected Connection	getDatabaseConnection()
Object	invoke(Object dataSourceProxy, Method method, Object[] args) Handles all invocations on the DataSource.
protected boolean	isEqualsMethod(Method method)
protected boolean	isHashCodeMethod(Method method)
protected boolean	isParameterLessGetConnectionMethod(Method method)

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleDataSource.SimpleDataSourceInvocationHandler

protected SimpleDataSource.SimpleDataSourceInvocationHandler(String driverClassName,
                                                             String url,
                                                             String userName,
                                                             String password)

Method Detail

invoke

public Object invoke(Object dataSourceProxy,
                     Method method,
                     Object[] args)
              throws Throwable

Handles all invocations on the DataSource. We only implement the parameterless getConnection method, since this is the only method used in dbmaintain

Specified by:

invoke in interface InvocationHandler

Parameters:

dataSourceProxy - The proxy that represents the datasource

method - The method invoked on the datasource

args - The arguments of the invoked method

Returns:

The return object

Throws:

Throwable

getDatabaseConnection

protected Connection getDatabaseConnection()

Returns:

A connection to the database

isEqualsMethod

protected boolean isEqualsMethod(Method method)

Parameters:

method - The invoked method

Returns:

Whether the given method is the equals method

isHashCodeMethod

protected boolean isHashCodeMethod(Method method)

Parameters:

method - The invoked method

Returns:

Whether the given method is the hashCode method

isParameterLessGetConnectionMethod

protected boolean isParameterLessGetConnectionMethod(Method method)

Parameters:

method - The method invoked on the datasource proxy

Returns:

whether the given method is the method DataSource.getConnection()