Account.java

package com.giftoftheembalmer.gotefarm.server.dao;

import com.google.appengine.api.datastore.Key;
import com.google.appengine.api.users.User;

import javax.jdo.annotations.Element;
import javax.jdo.annotations.Extension;
import javax.jdo.annotations.IdGeneratorStrategy;
import javax.jdo.annotations.IdentityType;
import javax.jdo.annotations.Order;
import javax.jdo.annotations.PersistenceCapable;
import javax.jdo.annotations.Persistent;
import javax.jdo.annotations.PrimaryKey;

import java.util.ArrayList;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class Account {
    @PrimaryKey
    @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
    private Key key;

    @Persistent
    private User user;

    @Persistent
    private Key activeGuild;

    @Persistent
    private Date lastUpdate;

    // FIXME: Using List here due to AppEngine bug, switch to Set once
    // it is fixed.
    // http://code.google.com/p/datanucleus-appengine/issues/detail?id=26
    @Persistent(mappedBy = "account")
    @Element(dependent = "true")
    @Order(extensions = @Extension(vendorName="datanucleus", key="list-ordering", value="main asc"))
    private List<ChrGroup> chrGroups = new ArrayList<ChrGroup>();

    public Account(User user) {
        this.user = user;
        lastUpdate = new Date();
    }

    public Key getActiveGuild() {
        return activeGuild;
    }

    public List<ChrGroup> getChrGroups() {
        return chrGroups;
    }

    public Set<Key> getGuilds() {
        Set<Key> r = new HashSet<Key>();
        List<ChrGroup> chr_groups = getChrGroups();
        // FIXME: appengine null collection bug
        if (chr_groups != null) {
            for (ChrGroup cg : chr_groups) {
                r.add(cg.getGuildKey());
            }
        }
        return r;
    }

    public Key getKey() {
        return key;
    }

    public Date getLastUpdate() {
        return lastUpdate;
    }

    public User getUser() {
        return user;
    }

    public void setActiveGuild(Key activeGuild) {
        this.activeGuild = activeGuild;
    }

    public void setChrGroups(List<ChrGroup> chrGroups) {
        this.chrGroups = chrGroups;
    }

    public void setLastUpdate(Date lastUpdate) {
        this.lastUpdate = lastUpdate;
    }
}