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java.lang.Object | +--com.ibm.able.rules.AbleInferenceEngine | +--com.ibm.able.rules.AbleMutExEngine
This rule engine provides the control code and inferencing algorithms for processing a ruleblock and fires a single rule in the ruleblock. This is an experimental engine.
Fields inherited from class com.ibm.able.rules.AbleInferenceEngine |
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myDebugLevel, myRuleBlock, myRuleSet, myRulesFiredCount, myTracer, myWorkingMemory |
Constructor Summary | |
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AbleMutExEngine(AbleRuleSet theRuleSet,
AbleLogger theTracer,
AbleRuleBlock theRuleBlock)
Create a new inference engine. |
Method Summary | |
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void |
addRuleToConflictSet(java.util.Vector theConflictSet,
AbleRule theRule)
Inserts the Rule into the conflict set based on priority. |
static java.lang.String |
Copyright()
Determine the copyright of this class. |
java.lang.Object |
getControlParameter(java.lang.String theControlParameter)
Returns the specified control parameter on the associated inference engine. |
void |
infer(AbleRuleBlock theRuleBlock)
Fire the rules in the ruleset using boolean rules of forward chaining inferencing: work forward from an initial state to the goal state. |
boolean |
isRuleBlockValid(AbleRuleBlock theRuleBlock)
Make sure the current ruleblock is "executable" by this inference engine. |
protected void |
logConflictSet(java.util.Vector conflictSet)
Write the contents of the conflict set (triggered rules) to the Inference trace log |
void |
reevaluateClausesWithChangedVariable(AbleClauseReferences theClauseReferences)
Re-evaluate, if necessary, the specified clauses that contain a reference to a variable whose current value has just changed. |
void |
setControlParameter(java.lang.String theControlParameter,
java.lang.Object theValue)
Set the specified control parameter on the associated inference engine. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public AbleMutExEngine(AbleRuleSet theRuleSet, AbleLogger theTracer, AbleRuleBlock theRuleBlock)
theRuleSet
- A ruleset whose context is used for inferencing
by this inference engine.
theTracer
- A tracer object to which this inference engine can log
information. This may be null, in which case no
information is logged.
theRuleBlock
- A ruleblock whose rules are to be used for inferencing
by this inference engine.
Method Detail |
public boolean isRuleBlockValid(AbleRuleBlock theRuleBlock)
The ruleblock is invalid if any of the following are present in the ruleblock:
All reasons for validation failures are appended to the AbleRuleSet's myIsExReason variable. If validation fails, the inference engine must call myRuleSet.addIsExReason(java.lang.String) to append the reason.
isRuleBlockValid
in class AbleInferenceEngine
public void infer(AbleRuleBlock theRuleBlock) throws AbleDataException
The order of processing is as follows:
infer
in class AbleInferenceEngine
theUnneededObject
- The Object is ignored.
AbleDataException
- When any error occurs.public void reevaluateClausesWithChangedVariable(AbleClauseReferences theClauseReferences) throws AbleDataException
theClauseReferences
- A collection of clauses that reference some variable
whose current value has just changed.
public void addRuleToConflictSet(java.util.Vector theConflictSet, AbleRule theRule) throws AbleDataException
conflictSet
- the Vector to which the rule is addedtheRule
- the Rule that needs to be addedprotected void logConflictSet(java.util.Vector conflictSet)
public void setControlParameter(java.lang.String theControlParameter, java.lang.Object theValue) throws AbleDataException
setControlParameter
in class AbleInferenceEngine
public java.lang.Object getControlParameter(java.lang.String theControlParameter) throws AbleDataException
getControlParameter
in class AbleInferenceEngine
public static java.lang.String Copyright()
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ABLE 2.0.0 07/02/2003 10:25:01 | ||||||||||
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