Examples with RecordQueryPlanWithComparisons com.apple.foundationdb.record.query.plan.plans.RecordQueryPlanWithComparisons used on opensource projects

Example 1 with RecordQueryPlanWithComparisons

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

the class UnmatchedFieldsCountProperty method evaluateAtExpression.

@Nonnull
@Override
public Integer evaluateAtExpression(@Nonnull RelationalExpression expression, @Nonnull List<Integer> childResults) {
    int total = 0;
    for (Integer result : childResults) {
        if (result != null) {
            total += result;
        }
    }
    if (expression instanceof RecordQueryCoveringIndexPlan) {
        expression = ((RecordQueryCoveringIndexPlan) expression).getIndexPlan();
    }
    final int columnSize;
    if (expression instanceof RecordQueryPlanWithComparisons) {
        final ScanComparisons comparisons = ((RecordQueryPlanWithComparisons) expression).getComparisons();
        if (expression instanceof RecordQueryPlanWithIndex) {
            final String indexName = ((RecordQueryPlanWithIndex) expression).getIndexName();
            columnSize = planContext.getIndexByName(indexName).getRootExpression().getColumnSize();
        } else if (expression instanceof RecordQueryScanPlan) {
            columnSize = planContext.getGreatestPrimaryKeyWidth();
        } else {
            throw new RecordCoreException("unhandled plan with comparisons: can't find key expression");
        }
        return total + columnSize - (comparisons.getEqualitySize() + (comparisons.isEquality() ? 0 : 1));
    } else {
        return total;
    }
}