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    On 24/05/2011 09:51, Abhay B. Chaware wrote:
    <blockquote
cite="mid:371569CBCFB2E745B891DBB88B2DFDDD1A247D349A@KCINPUNHJCMS01.kpit.com"
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          <p class="MsoNormal" style=""><font face="Arial" size="2"><span
                style="font-size: 10pt; font-family: Arial;">Could be a
                basic question<st1:personname w:st="on">,</st1:personname>
                but thought I should
                get clarified.<o:p></o:p></span></font></p>
          <p class="MsoNormal" style=""><font face="Arial" size="2"><span
                style="font-size: 10pt; font-family: Arial;">I insert a
                fact say<st1:personname w:st="on">,</st1:personname> a
                Computer object with
                some attributes ( hdd=10GB ) set<st1:personname
                  w:st="on">,</st1:personname> in
                working memory. Then I have a rule that checks if a
                Computer with 10GB hdd is
                inserted .. if yes<st1:personname w:st="on">,</st1:personname>
                then it does a
                logicalInsert of an Alert object with computerId = this
                computer&#8217;s id. <o:p></o:p></span></font></p>
          <p class="MsoNormal" style=""><font face="Arial" size="2"><span
                style="font-size: 10pt; font-family: Arial;">Now I would
                like to re-insert the same fact with HDD changed to
                &#8216;20gb&#8217; and
                would like drools to automatically retract the Alert for
                this computerId .. how
                do I achieve this ?</span></font></p>
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    logical insertions are immutable. The act of calling "modify" will
    state the fact, losing all justifications.<br>
    <br>
    Mark<br>
    <blockquote
cite="mid:371569CBCFB2E745B891DBB88B2DFDDD1A247D349A@KCINPUNHJCMS01.kpit.com"
      type="cite"><o:smarttagtype
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          <p class="MsoNormal" style=""><font face="Arial" size="2"><span
                style="font-size: 10pt; font-family: Arial;"><o:p></o:p></span></font></p>
          <p class="MsoNormal" style=""><font face="Arial" size="2"><span
                style="font-size: 10pt; font-family: Arial;">-abhay<o:p></o:p></span></font></p>
          <p class="MsoNormal" style=""><font face="Times New Roman"
              size="3"><span style="font-size: 12pt;"><o:p>&nbsp;</o:p></span></font></p>
          <p class="MsoNormal"><font face="Times New Roman" size="3"><span
                style="font-size: 12pt;"><o:p>&nbsp;</o:p></span></font></p>
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