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And why not accessing the object itself directly ?<br>
Because the evaluation of one object field depends on others objects
in WM ?<br>
<br>
Le 10/06/2011 11:54, Martin, Matthias a écrit :
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<p class="MsoNormal"><span lang="EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">some of our custom
operators need to access already inserted facts at runtime.
Therefore we extended <b>org.drools.base.BaseEvaluator</b>.
The provide methods, i. e. <o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: 200%;"><b><span
lang="EN-US">public boolean evaluate(InternalWorkingMemory
workingMemory, InternalReadAccessor extractor, Object
object, FieldValue value)</span></b><span lang="EN-US">,
state, amongst others, a parameter “workingMemory” of type <b>org.drools.common.InternalWorkingMemory</b>.
<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: 200%;"><span
lang="EN-US">When calling <b>workingMemory.getObjects()</b>
we receive a “UnsupportedOperationException”. The question
is whether it is possible to access facts in a
KnwoledgeSession at runtime or not. Alternatively we could
provide the objects in question as globals and call
workingMemory.getGlobal(), but that seems to me like
somewhat bad architecture. <o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: 200%;"><span
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: 200%;"><span
lang="EN-US">Any suggestions are welcome.<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: 200%;"><span
lang="EN-US">Many thanks,<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: 200%;"><span
lang="EN-US">-Matthias<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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