<br> We need to improve docs on that, as it is only mentioned briefly:<br><br><a href="https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/docs/drools-expert/html/ch07.html#d0e3206">https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/docs/drools-expert/html/ch07.html#d0e3206</a><br>
<br> The @key will do it for you:<br><br>declare Person<br> name : String<br> ssn : BigDecimal @key<br> age : int<br>end<br> <br> Wanna write a quick patch for the docs emphasizing the use of it?<br><br>
Thanks,<br> <br> []s<br> Edson<br><br><div class="gmail_quote">2009/2/23 Zoltan Farkas <span dir="ltr"><<a href="mailto:zoly@daxtechnologies.com">zoly@daxtechnologies.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">declare Person</span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;"> name : String</span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;"> ssn: BigDecimal</span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;"> age : int</span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">end</span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">Is there a way to define what field/s
identify a Person?</span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">In the example above I would like to
define ssn as the unique indentifier for person, so person1 == person2 if
person1.ssn == person2.ssn.</span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">In this case equals would use only the
field ssn to determine if 2 person objects are equal.</span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">The hashcode should also be based only on the
ssn field.</span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">I want to use Person with assertBehaviour
equality…</span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">Thanks</span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;">--zoly</span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
<p><font color="navy" size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial; color: navy;"> </span></font></p>
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<br></blockquote></div><br><br clear="all"><br>-- <br> Edson Tirelli<br> JBoss Drools Core Development<br> JBoss, a division of Red Hat @ <a href="http://www.jboss.com">www.jboss.com</a><br>