Java tutorial
/** * Copyright 2002 Instituto Superior Tcnico * * This file is part of FenixEdu Core. * * FenixEdu Core is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * FenixEdu Core is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with FenixEdu Core. If not, see <http://www.gnu.org/licenses/>. */ package net.sourceforge.fenixedu.applicationTier.Servico.teacher; import java.util.Collection; import net.sourceforge.fenixedu.applicationTier.Servico.exceptions.NotAuthorizedException; import net.sourceforge.fenixedu.domain.ExecutionCourse; import net.sourceforge.fenixedu.domain.Person; import net.sourceforge.fenixedu.domain.Professorship; import net.sourceforge.fenixedu.domain.ShiftProfessorship; import net.sourceforge.fenixedu.domain.exceptions.DomainException; import org.apache.commons.collections.CollectionUtils; import org.apache.commons.collections.Predicate; import pt.ist.fenixframework.Atomic; public class RemoveProfessorshipWithPerson extends AbstractModifyProfessorshipWithPerson { @Atomic public static Boolean run(Person person, ExecutionCourse executionCourse) throws NotAuthorizedException { AbstractModifyProfessorshipWithPerson.run(person); Professorship professorshipToDelete = person.getProfessorshipByExecutionCourse(executionCourse); Collection shiftProfessorshipList = professorshipToDelete.getAssociatedShiftProfessorshipSet(); boolean hasCredits = false; if (!shiftProfessorshipList.isEmpty()) { hasCredits = CollectionUtils.exists(shiftProfessorshipList, new Predicate() { @Override public boolean evaluate(Object arg0) { ShiftProfessorship shiftProfessorship = (ShiftProfessorship) arg0; return shiftProfessorship.getPercentage() != null && shiftProfessorship.getPercentage() != 0; } }); } if (!hasCredits) { professorshipToDelete.delete(); } else { if (hasCredits) { throw new DomainException("error.remove.professorship"); } } return Boolean.TRUE; } }