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Chapter 6 Application Patterns
Figure 6‐4showsanapplicationpatterndefinitionthatcontainsbothmandatoryandoptionalelements.
Figure 6-4. Mandatory and Optional Elements in an Application Pattern Definition
Unifying Node Rules
Theendpointsofanapplicationpatterninstancemightbesharedbyotherentities.Unificationallowsyouto
identifyallentitiesthatsharearesourceasasingleapplicationpatterninstance.
Tohelpidentifyallsimilarinstancesthatsharethesamecomponents,youcanspecifyanode‐basedruleasa
unification
rule.Whentheruleisapplied,itresultsinoneinstancebeingdetected,insteadofseveralthat
containallthesamecomponents.
Forexample,youmightnotknowhowmanyADMCollectorcomponentsexistinaninstanceofanADM
application.Youcouldendupwithmultipleinstancesinsteadofjust
one,asshowninFigure 6‐5.
Figure 6-5. Multiple Instances Sharing the Same Components Identified Without Unification
Whenyouspecifyanoderuleasaunificationrule,theapplicationpatterndefinitionunitesall
aggregator‐collectorinstancesthatsharethesameADMaggregatorintooneinstanceasshowninFigure 6‐6.
Application
server
(mandatory)
Oracle
database
Gateway
(optional)
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