Java Bean Library / Discussion / Help: nosuchmethodexception empy constructor

Pablo Casado - 2008-03-20

if I have a field of a type that has no empty constructor how do I go about doing a copy or deepCopy without access to the fields source,

e.g.

public class A {

private com.vividsolutions.jts.geom.Point point;

}

The class Point has no empty constructor, I do not have the source to add a constructor, how do I proceed? I cannot wrap Point with my own class as the source for the objects that contain Point are generated by an external system and passed on to me to use.

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- Hanson Char - 2008-03-20
  
  Yes, this can be done with a custom bean transformer (CustomBeanTransformerSpi) when you instantiate and initialize a BeanReplicator. Will give you an example later.
  
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- Hanson Char - 2008-03-20
  
  See some sample code of how this can be done via a custom transformer:
  
  http://beanlib.svn.sourceforge.net/viewvc/beanlib/trunk/beanlib-test/src/net/sf/beanlib/spi/
  
  Or,
  http://beanlib.svn.sourceforge.net/viewvc/beanlib/trunk/beanlib-test/src/net/sf/beanlib/spi/BeanTransformerSpiTest.java?revision=235&view=markup
  http://beanlib.svn.sourceforge.net/viewvc/beanlib/trunk/beanlib-test/src/net/sf/beanlib/spi/A.java?view=markup
  http://beanlib.svn.sourceforge.net/viewvc/beanlib/trunk/beanlib-test/src/net/sf/beanlib/spi/Point.java?revision=235&view=markup
  
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- Hanson Char - 2008-03-20
  
  Also copied to google group:
  
  http://groups.google.com/group/beanlib/browse_thread/thread/585820ebd1bb12dd/f9c2c96f22b38126#f9c2c96f22b38126
  
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- Pablo Casado - 2008-03-25
  
  thanks for the info, i'll give it a try, if you don't hear from me it worked :)
  
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nosuchmethodexception empy constructor

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nosuchmethodexception empy constructor