Generic equal and toString in Java

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By mosheco
via j2ee-now.blogspot.com
Published: Jan 22 2008 / 03:15

Generic equal and toString in Java

In many cases it's required to implement "toString to" display the DTO (Data Transfer Object) in the log file for debugging, In this case a good solution is to use generic DTO implementaion which implement "toString" and "equal" methods in a generic way. This link contains the complete source code.

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jtheory replied ago:

4 votes

See org.apache.commons.lang.builder.ToStringBuilder and org.apache.commons.lang.builder.EqualsBuilder and related classes in Apache Commons lang.

Also, I know it's not quite fair to a pure content evaluation, but the poor grammar and spelling make it tough reading.

nwbrown replied ago:

0 votes

The lack of indentation also hurts readability. And as far as I can tell, the equals() method isn't valid as its not necessarily transitive or symmetric, which means it might break any data structure that holds an object implementing it. Not to mention the possibility of an infinite recursion occurring in there...