StoryList.java

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package jsf2.demo.scrum.web.controller;

import java.io.Serializable;
import java.util.Collections;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.annotation.PostConstruct;
import javax.faces.view.ViewScoped;
import javax.inject.Named;
import javax.inject.Inject;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import jsf2.demo.scrum.model.entities.Sprint;
import jsf2.demo.scrum.model.entities.Story;

/**
 *
 * @author Eder Magalhaes
 */
@Named("storyList")
@ViewScoped
public class StoryList extends AbstractManager implements Serializable{

    @Inject
    private StoryManager storyManager;

    private DataModel<Story> stories;
    private List<Story> storyList;

    @PostConstruct
    public void init() {
        try {
            setStoryList(doInTransaction(new PersistenceAction<List<Story>>() {

                @SuppressWarnings({"unchecked"})
                public List<Story> execute(EntityManager em) {
                    Sprint s = storyManager.getSprint();
                    if (s == null)
                        return Collections.EMPTY_LIST;

                    Query query = em.createNamedQuery("story.getBySprint");
                    query.setParameter("sprint", s);
                    return (List<Story>) query.getResultList();
                }
            }));
        } catch (ManagerException ex) {
            Logger.getLogger(StoryList.class.getName()).log(Level.SEVERE, null, ex);
        }

    }

    public StoryManager getStoryManager() {
        return storyManager;
    }

    public void setStoryManager(StoryManager storyManager) {
        this.storyManager = storyManager;
    }

    public DataModel<Story> getStories() {
        this.stories = new ListDataModel<Story>(storyList);

        return stories;
    }

    public void setStories(DataModel<Story> stories) {
        this.stories = stories;
    }


    public List<Story> getStoryList() {
        return this.storyList;
    }

    public void setStoryList(List<Story> storyList) {
        this.storyList = storyList;
    }

    public String edit() {
        return storyManager.edit(stories.getRowData());
    }

    public String remove() {
        String result = storyManager.remove(stories.getRowData());
        init();
        return result;
    }

    public String showTasks() {
        return storyManager.showTasks(stories.getRowData());
    }
}