Example usage for org.aspectj.util PartialOrder sort

Introduction

In this page you can find the example usage for org.aspectj.util PartialOrder sort.

Prototype

public static <T extends PartialComparable> List<T> sort(List<T> objects) 

Source Link

Usage

From source file:org.springframework.aop.aspectj.autoproxy.AspectJAwareAdvisorAutoProxyCreator.java

License:Apache License

/**
 * Sort the rest by AspectJ precedence. If two pieces of advice have
 * come from the same aspect they will have the same order.
 * Advice from the same aspect is then further ordered according to the
 * following rules:/*from w  ww.ja va2 s.  co  m*/
 * <ul>
 * <li>if either of the pair is after advice, then the advice declared
 * last gets highest precedence (runs last)</li>
 * <li>otherwise the advice declared first gets highest precedence (runs first)</li>
 * </ul>
 * <p><b>Important:</b> Advisors are sorted in precedence order, from highest
 * precedence to lowest. "On the way in" to a join point, the highest precedence
 * advisor should run first. "On the way out" of a join point, the highest precedence
 * advisor should run last.
 */
@Override
@SuppressWarnings("unchecked")
protected List<Advisor> sortAdvisors(List<Advisor> advisors) {
    List<PartiallyComparableAdvisorHolder> partiallyComparableAdvisors = new ArrayList<PartiallyComparableAdvisorHolder>(
            advisors.size());
    for (Advisor element : advisors) {
        partiallyComparableAdvisors
                .add(new PartiallyComparableAdvisorHolder(element, DEFAULT_PRECEDENCE_COMPARATOR));
    }
    List<PartiallyComparableAdvisorHolder> sorted = PartialOrder.sort(partiallyComparableAdvisors);
    if (sorted != null) {
        List<Advisor> result = new ArrayList<Advisor>(advisors.size());
        for (PartiallyComparableAdvisorHolder pcAdvisor : sorted) {
            result.add(pcAdvisor.getAdvisor());
        }
        return result;
    } else {
        return super.sortAdvisors(advisors);
    }
}

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