Examples of org.apache.commons.collections.comparators.ComparatorChain

Package org.apache.commons.collections.comparators

Examples of org.apache.commons.collections.comparators.ComparatorChain

org.apache.commons.collections.comparators.ComparatorChain

A ComparatorChain is a Comparator that wraps one or more Comparators in sequence. The ComparatorChain calls each Comparator in sequence until either 1) any single Comparator returns a non-zero result (and that result is then returned), or 2) the ComparatorChain is exhausted (and zero is returned). This type of sorting is very similar to multi-column sorting in SQL, and this class allows Java classes to emulate that kind of behaviour when sorting a List.

To further facilitate SQL-like sorting, the order of any single Comparator in the list can be reversed.

Calling a method that adds new Comparators or changes the ascend/descend sort after compare(Object, Object) has been called will result in an UnsupportedOperationException. However, take care to not alter the underlying List of Comparators or the BitSet that defines the sort order.

Instances of ComparatorChain are not synchronized. The class is not thread-safe at construction time, but it is thread-safe to perform multiple comparisons after all the setup operations are complete.
@since Commons Collections 2.0 @author Morgan Delagrange @version $Revision: 1.18 $ $Date: 2004/05/16 11:48:49 $

            } catch (Exception e) {
                throw new FenixActionException(e);
            }
        }


        ComparatorChain comparatorChain = new ComparatorChain();
        comparatorChain.addComparator(new BeanComparator("value"));
        Collections.sort(result, comparatorChain);
        Collections.reverse(result);


        return result;
    }

View Full Code Here

            } catch (Exception e) {
                throw new FenixActionException(e);
            }
        }


        ComparatorChain comparatorChain = new ComparatorChain();
        comparatorChain.addComparator(new BeanComparator("value"));
        Collections.sort(result, comparatorChain);
        Collections.reverse(result);


        return result;
    }

View Full Code Here


        InfoPerson infoPerson = getInfoPerson(request, dynaForm);


        List detailedInfoProfessorshipList = getDetailedProfessorships(userView, infoPerson.getExternalId(), dynaForm, request);


        ComparatorChain chain = new ComparatorChain();


        Comparator executionPeriodComparator =
                new BeanComparator("infoProfessorship.infoExecutionCourse.infoExecutionPeriod.semester");
        Comparator nameComparator = new BeanComparator("infoProfessorship.infoExecutionCourse.nome");


        chain.addComparator(executionPeriodComparator);
        chain.addComparator(nameComparator);
        Collections.sort(detailedInfoProfessorshipList, chain);


        request.setAttribute("detailedProfessorshipList", detailedInfoProfessorshipList);


        extraPreparation(userView, infoPerson, request, dynaForm);

View Full Code Here

        return infoEnrolments;
    }


    public List getInfoEnrolmentsSorted() {
        final List<InfoEnrolment> infoEnrolments = getInfoEnrolments();
        ComparatorChain comparatorChain = new ComparatorChain();
        comparatorChain.addComparator(new BeanComparator("infoExecutionPeriod.infoExecutionYear.year"));
        comparatorChain.addComparator(new BeanComparator("infoExecutionPeriod.semester"));
        comparatorChain.addComparator(new BeanComparator("infoCurricularCourse.name", Collator.getInstance()));
        Collections.sort(infoEnrolments, comparatorChain);
        return infoEnrolments;
    }

View Full Code Here

    @Atomic
    public static SortedSet<DegreeModuleScope> run(String degreeCurricularPlanID, AcademicInterval academicInterval)
            throws FenixServiceException {
        final DegreeCurricularPlan degreeCurricularPlan = FenixFramework.getDomainObject(degreeCurricularPlanID);


        final ComparatorChain comparator = new ComparatorChain();
        comparator.addComparator(new BeanComparator("curricularYear"));
        comparator.addComparator(new BeanComparator("curricularSemester"));
        comparator.addComparator(new BeanComparator("curricularCourse.externalId"));
        comparator.addComparator(new BeanComparator("branch"));


        final SortedSet<DegreeModuleScope> scopes = new TreeSet<DegreeModuleScope>(comparator);


        for (DegreeModuleScope degreeModuleScope : degreeCurricularPlan.getDegreeModuleScopes()) {
            if (degreeModuleScope.isActiveForAcademicInterval(academicInterval)) {

View Full Code Here

    public static SortedSet<DegreeModuleScope> run(String degreeCurricularPlanID, String executioYearID)
            throws FenixServiceException {
        final DegreeCurricularPlan degreeCurricularPlan = FenixFramework.getDomainObject(degreeCurricularPlanID);
        final ExecutionYear executionYear = FenixFramework.getDomainObject(executioYearID);


        final ComparatorChain comparator = new ComparatorChain();
        comparator.addComparator(new BeanComparator("curricularYear"));
        comparator.addComparator(new BeanComparator("curricularSemester"));
        comparator.addComparator(new BeanComparator("curricularCourse.externalId"));
        comparator.addComparator(new BeanComparator("branch"));


        final SortedSet<DegreeModuleScope> scopes = new TreeSet<DegreeModuleScope>(comparator);


        for (DegreeModuleScope degreeModuleScope : degreeCurricularPlan.getDegreeModuleScopes()) {
            if (degreeModuleScope.isActiveForExecutionYear(executionYear)) {

View Full Code Here


        return scopesForPrintDTO.getDegreeCurricularPlans();
    }


    private void sortScopes(List<InfoCurricularCourseScope> scopes) {
        ComparatorChain comparatorChain = new ComparatorChain();
        comparatorChain.addComparator(new BeanComparator("infoCurricularSemester.infoCurricularYear.year"));
        comparatorChain.addComparator(new BeanComparator("infoBranch.name"));
        comparatorChain.addComparator(new BeanComparator("infoCurricularSemester.semester"));
        comparatorChain.addComparator(new BeanComparator("infoCurricularCourse.name"));
        Collections.sort(scopes, comparatorChain);
    }

View Full Code Here

                }
            }
        }


        if (this.getOrderCriteria() == 0) {
            final ComparatorChain comparatorChain = new ComparatorChain();
            comparatorChain.addComparator(new ReverseComparator(new BeanComparator("capacidadeExame")));
            comparatorChain.addComparator(new BeanComparator("nome"));


            Collections.sort(availableInfoRoom, comparatorChain);
        } else if (this.getOrderCriteria() == 1) {
            final ComparatorChain comparatorChain = new ComparatorChain();
            comparatorChain.addComparator(new ReverseComparator(new BeanComparator("edificio")));
            comparatorChain.addComparator(new BeanComparator("nome"));


            Collections.sort(availableInfoRoom, comparatorChain);
        } else if (this.getOrderCriteria() == 2) {
            final ComparatorChain comparatorChain = new ComparatorChain();
            comparatorChain.addComparator(new ReverseComparator(new BeanComparator("tipo")));
            comparatorChain.addComparator(new BeanComparator("nome"));


            Collections.sort(availableInfoRoom, comparatorChain);
        }


        List<SelectItem> items = new ArrayList<SelectItem>(availableInfoRoom.size());

View Full Code Here

    public List<SelectItem> getExecutionPeriodsLabels() {
        if (this.executionPeriodsLabels == null) {
            this.executionPeriodsLabels = new ArrayList();


            final List<InfoExecutionPeriod> infoExecutionPeriods = getExecutionPeriods();
            final ComparatorChain comparatorChain = new ComparatorChain();
            comparatorChain.addComparator(new ReverseComparator(new BeanComparator("infoExecutionYear.year")));
            comparatorChain.addComparator(new ReverseComparator(new BeanComparator("semester")));
            Collections.sort(infoExecutionPeriods, comparatorChain);
            for (final InfoExecutionPeriod infoExecutionPeriod : infoExecutionPeriods) {
                final SelectItem selectItem = new SelectItem();
                selectItem.setValue(infoExecutionPeriod.getExternalId());
                selectItem.setLabel(infoExecutionPeriod.getName() + " - " + infoExecutionPeriod.getInfoExecutionYear().getYear());

View Full Code Here

    public List<SelectItem> getExecutionPeriodsLabels() {
        if (this.executionPeriodsLabels == null) {
            this.executionPeriodsLabels = new ArrayList();


            final List<InfoExecutionPeriod> infoExecutionPeriods = getExecutionPeriods();
            final ComparatorChain comparatorChain = new ComparatorChain();
            comparatorChain.addComparator(new ReverseComparator(new BeanComparator("infoExecutionYear.year")));
            comparatorChain.addComparator(new ReverseComparator(new BeanComparator("semester")));
            Collections.sort(infoExecutionPeriods, comparatorChain);
            for (final InfoExecutionPeriod infoExecutionPeriod : infoExecutionPeriods) {
                final SelectItem selectItem = new SelectItem();
                selectItem.setValue(infoExecutionPeriod.getExternalId());
                selectItem.setLabel(infoExecutionPeriod.getName() + " - " + infoExecutionPeriod.getInfoExecutionYear().getYear());

View Full Code Here

0 1 2 3 4 5

TOP

Related Classes of org.apache.commons.collections.comparators.ComparatorChain

com.sparc.knappsack.components.controllers.SearchController

com.sparc.knappsack.components.controllers.SystemNotificationController

com.sparc.knappsack.components.services.SearchServiceImpl

mondrian.olap.fun.FunUtil

org.andromda.core.engine.ModelProcessor

org.andromda.utils.beans.BeanSorter

org.apache.commons.collections.ComparatorUtils

org.apache.ode.bpel.engine.ProcessAndInstanceManagementImpl

org.apache.openjpa.meta.FieldMetaData

org.fenixedu.academic.domain.ExecutionDegree

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.