com.sptci.echo2.table
Class ResultSetMetaDataProxy

java.lang.Object
  com.sptci.echo2.table.ResultSetMetaDataProxy

All Implemented Interfaces:

InvocationHandler

public class ResultSetMetaDataProxy
extends Object
implements InvocationHandler

A proxy ResultSetMetaData to return non-negative values for the ResultSetMetaData.getScale(int) method.

© Copyright 2007 Sans Pareil Technologies, Inc.

Version:

$Id: ResultSetMetaDataProxy.java 4553 2008-12-24 10:34:16Z rakesh $

Author:

Rakesh Vidyadharan 2007-10-22

Method Summary

static ResultSetMetaData	createMetaData(ResultSetMetaData metadata) Returns a proxy meta data which returns a non-negative scale value for number columns.
Object	invoke(Object proxy, Method method, Object[] parameters) The InvocationHandler implementation.

Methods inherited from class java.lang.Object

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

Method Detail

createMetaData

public static ResultSetMetaData createMetaData(ResultSetMetaData metadata)

Returns a proxy meta data which returns a non-negative scale value for number columns.

Parameters:

metadata - The meta data that is to be proxied.

Returns:

The proxied instance.

invoke

public Object invoke(Object proxy,
                     Method method,
                     Object[] parameters)
              throws SQLException

The InvocationHandler implementation. Passes through to metadata except for invocation of the ResultSetMetaData.getScale(int) method which returns a non-negative value for all cases.

Specified by:

invoke in interface InvocationHandler

Parameters:

proxy - This proxy instance.

method - The method that is to be executed.

parameters - The parameters to pass to the method.

Throws:

SQLException - If errors are encountered while invoking the method.