use of org.drools.core.base.evaluators.EvaluatorDefinition.Target in project drools by kiegroup.
the class PatternBuilder method buildOperators.
protected static Map<String, EvaluatorWrapper> buildOperators(RuleBuildContext context, Pattern pattern, BaseDescr predicateDescr, Map<String, OperatorDescr> aliases) {
if (aliases.isEmpty()) {
return Collections.emptyMap();
}
Map<String, EvaluatorWrapper> operators = new HashMap<String, EvaluatorWrapper>();
for (Map.Entry<String, OperatorDescr> entry : aliases.entrySet()) {
OperatorDescr op = entry.getValue();
Declaration leftDecl = createDeclarationForOperator(context, pattern, op.getLeftString());
Declaration rightDecl = createDeclarationForOperator(context, pattern, op.getRightString());
Target left = leftDecl != null && leftDecl.isPatternDeclaration() ? Target.HANDLE : Target.FACT;
Target right = rightDecl != null && rightDecl.isPatternDeclaration() ? Target.HANDLE : Target.FACT;
op.setLeftIsHandle(left == Target.HANDLE);
op.setRightIsHandle(right == Target.HANDLE);
Evaluator evaluator = getConstraintBuilder(context).getEvaluator(context, predicateDescr, ValueType.OBJECT_TYPE, op.getOperator(), // the rewrite takes care of negation
false, op.getParametersText(), left, right);
EvaluatorWrapper wrapper = getConstraintBuilder(context).wrapEvaluator(evaluator, leftDecl, rightDecl);
operators.put(entry.getKey(), wrapper);
}
return operators;
}
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