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Re: Entity hashCode and equals overriding
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created by <a href="https://community.jboss.org/people/fabiovalse">fabio valsecchi</a> in <i>EJB3 Development</i> - <a href="https://community.jboss.org/message/787964#787964">View the full discussion</a>
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<div class="jive-rendered-content"><p>I've just fix the problem! I've changed the code in this way:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>-------------------------------------------------------</p><p class="p1">@Override</p><p class="p2">          <span class="s1">public</span> <span class="s1">boolean</span> equals(Object o) {</p><p class="p2">             <span class="s1">if</span> (o==<span class="s1">this</span>)</p><p class="p2">                 <span class="s1">return</span> <span class="s1">true</span>;</p><p class="p2">             <span class="s1">if</span> (o <span class="s1">instanceof</span> Book) {</p><p class="p2">                       <span class="s1">if</span> (<span class="s1">this</span>.<span class="s2">isbn</span>.compareTo(((Book) o).getIsbn()) == 0)</p><p class="p3"><span class="s3">                                 </span>return<span class="s3"> </span>true<span class="s3">;</span></p><p class="p3"><span class="s3">                       </span>else<span class="s3"> </span>return<span class="s3"> </span>false<span class="s3">;</span></p><p class="p2">             }</p><p class="p3"><span class="s3">             </span>return<span class="s3"> </span>false<span class="s3">;</span></p><p class="p2">          }</p><p>-------------------------------------------------------</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The problem was the comparison between string! Now I use the compareTo() method and everything correctly works.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thank you for your time Piotr!</p></div>
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