Examples with PlannerRule com.apple.foundationdb.record.query.plan.temp.PlannerRule used on opensource projects

Example 1 with PlannerRule

use of com.apple.foundationdb.record.query.plan.temp.PlannerRule in project fdb-record-layer by FoundationDB.

the class TestRuleExecution method applyRule.

public static TestRuleExecution applyRule(@Nonnull PlanContext context, @Nonnull PlannerRule<? extends RelationalExpression> rule, @Nonnull GroupExpressionRef<RelationalExpression> group) {
    boolean ruleMatched = false;
    for (RelationalExpression expression : group.getMembers()) {
        final Iterator<CascadesRuleCall> ruleCalls = rule.getMatcher().bindMatches(PlannerBindings.empty(), expression).map(bindings -> new CascadesRuleCall(context, rule, group, Quantifiers.AliasResolver.withRoot(group), bindings)).iterator();
        while (ruleCalls.hasNext()) {
            ruleCalls.next().run();
            ruleMatched = true;
        }
    }
    return new TestRuleExecution(ruleMatched, group);
}