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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Based upon what I understood from Drools fusion documentation,
entry point stream can source data from file stream, so it could process data
in GB’s. Believe me this is not what I found, to my surprise I found out
I got –<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'>Exception in thread "main"
java.lang.OutOfMemoryError: Java heap space</span><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
java.util.GregorianCalendar.computeFields(</span><u><span style='font-size:
10.0pt;font-family:"Courier New";color:navy'>GregorianCalendar.java:2020</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
java.util.GregorianCalendar.computeFields(</span><u><span style='font-size:
10.0pt;font-family:"Courier New";color:navy'>GregorianCalendar.java:1996</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
java.util.Calendar.setTimeInMillis(</span><u><span style='font-size:10.0pt;
font-family:"Courier New";color:navy'>Calendar.java:1109</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
java.util.GregorianCalendar.<init>(</span><u><span style='font-size:10.0pt;
font-family:"Courier New";color:navy'>GregorianCalendar.java:576</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
java.util.Calendar.createCalendar(</span><u><span style='font-size:10.0pt;
font-family:"Courier New";color:navy'>Calendar.java:1011</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
java.util.Calendar.getInstance(</span><u><span style='font-size:10.0pt;
font-family:"Courier New";color:navy'>Calendar.java:948</span></u><span
style='font-size:10.0pt;font-family:"Courier New";color:red'>)</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
CashFlowTest.main(</span><u><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>CashFlowTest.java:66</span></u><span style='font-size:10.0pt;
font-family:"Courier New";color:red'>)</span><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I am reading a huge file in while loop, inside this loop object
is being constructed and inserted into entry point stream. Before even rules
would start firing, it goes straight into exception.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Like below-<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>while</span></b><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> ((readLine =
bufferedReader.readLine()) != </span><b><span style='font-size:10.0pt;
font-family:"Courier New";color:#7F0055'>null</span></b><span style='font-size:
10.0pt;font-family:"Courier New";color:black'>) {</span><span style='font-size:
10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> String
transactionType = readLine.substring(13, 14);</span><span style='font-size:
10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> String
amount = readLine.substring(9, 12);</span><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span><b><span
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>if</span></b><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> (</span><span
style='font-size:10.0pt;font-family:"Courier New";color:#2A00FF'>"C"</span><span
style='font-size:10.0pt;font-family:"Courier New";color:black'>.equals(transactionType))
{</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> CashFlow
wCashFlow = </span><b><span style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>new</span></b><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> CashFlow(Calendar.<i>getInstance</i>()</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> .getTime(),
Double.<i>valueOf</i>(amount), </span><i><span style='font-size:10.0pt;
font-family:"Courier New";color:#0000C0'>CREDIT</span></i><span
style='font-size:10.0pt;font-family:"Courier New";color:black'>, 1);</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> memoryEntryPoint.insert(wCashFlow);</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> }
</span><b><span style='font-size:10.0pt;font-family:"Courier New";color:#7F0055'>else</span></b><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> {</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> CashFlow
<u>wCashFlow</u> = </span><b><span style='font-size:10.0pt;font-family:"Courier New";
color:#7F0055'>new</span></b><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> CashFlow(Calendar.<i>getInstance</i>()</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> .getTime(),
Double.<i>valueOf</i>(amount), </span><i><span style='font-size:10.0pt;
font-family:"Courier New";color:#0000C0'>DEBIT</span></i><span
style='font-size:10.0pt;font-family:"Courier New";color:black'>, 1);</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> }</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> }</span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Unless I am doing something wrong here, I conclude it entry
stream cannot source GB data?<o:p></o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Aman
[mailto:boy18nj@gmail.com] <br>
<b>Sent:</b> Sunday, October 03, 2010 10:06 PM<br>
<b>To:</b> 'Rules Users List'<br>
<b>Subject:</b> RE: [rules-users] WorkingMemoryEntryPoint NullpointerException?<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Now I am using it. Thanks<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] <b>On Behalf Of </b>Leandro Romero<br>
<b>Sent:</b> Sunday, October 03, 2010 10:02 PM<br>
<b>To:</b> Rules Users List<br>
<b>Subject:</b> Re: [rules-users] WorkingMemoryEntryPoint NullpointerException?<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Are you using that entry-point in your rules? That might be
the problem.<o:p></o:p></p>
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