org.apache.commons.dbutils.wrappers
Class StringTrimmedResultSet

java.lang.Object
  org.apache.commons.dbutils.wrappers.StringTrimmedResultSet

All Implemented Interfaces:

InvocationHandler

public class StringTrimmedResultSet

extends Object

implements InvocationHandler

Wraps a ResultSet to trim strings returned by the getString() and getObject() methods.

Usage Example: This example shows how to decorate ResultSets so processing continues as normal but all Strings are trimmed before being returned from the ResultSet.

 ResultSet rs = // somehow get a ResultSet;
 
 // Substitute wrapped ResultSet with additional behavior for real ResultSet
 rs = StringTrimmedResultSet.wrap(rs);
 
 // Pass wrapped ResultSet to processor
 List list = BasicRowProcessor.instance().toBeanList(rs);
 

Version:

$Id: StringTrimmedResultSet.java,v 1.1 2003/11/02 19:15:23 dgraham Exp $

Author:

Steven Caswell, David Graham

Field Summary

private static ProxyFactory	factory The factory to create proxies with.
private ResultSet	rs The wrapped result.

Constructor Summary

StringTrimmedResultSet(ResultSet rs)
Constructs a new instance of StringTrimmedResultSet to wrap the specified ResultSet.

Method Summary

Object	invoke(Object proxy, Method method, Object[] args) Intercept calls to the getString() and getObject() methods and trim any Strings before they're returned.
static ResultSet	wrap(ResultSet rs) Wraps the ResultSet in an instance of this class.

Methods inherited from class java.lang.Object

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

Field Detail

factory

private static final ProxyFactory factory

The factory to create proxies with.

rs

private final ResultSet rs

The wrapped result.

Constructor Detail

StringTrimmedResultSet

public StringTrimmedResultSet(ResultSet rs)

Constructs a new instance of StringTrimmedResultSet to wrap the specified ResultSet.

Method Detail

wrap

public static ResultSet wrap(ResultSet rs)

Wraps the ResultSet in an instance of this class. This is equivalent to:

 ProxyFactory.instance().createResultSet(new StringTrimmedResultSet(rs));
 

Parameters:

rs - The ResultSet to wrap.

invoke

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

Intercept calls to the getString() and getObject() methods and trim any Strings before they're returned.

Specified by:

invoke in interface InvocationHandler

Throws:

Throwable

See Also:

InvocationHandler.invoke(java.lang.Object, java.lang.reflect.Method, java.lang.Object[])