歆渊技术博客

package tob.bookstore;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import av.tob.IAm;
import av.tob.Index;
import av.tob.Kin;
import av.tob.KinSet;
import av.tob.Retying;
import av.tob.Swappable;
import av.tob.TheRelation;
import av.tob.Writing;

@Swappable(typeInSwap = "Category")
public class Category extends TheRelation
{

    @Index(unique = false)
    protected static final String NAME_INDEX = "name";

    protected Tie<Category> parent;

    @IAm("parent")
    protected KinSet<Category, Category> subcategories = null;

    @IAm("maincate")
    protected KinSet<Product, Product> products = null;

    protected KinSet<Categorization, Product> moreProducts = null;

    private String name;

    private String description;

    protected Category()
    {
    }

    public Category(Category parentCate, String name, String desc)
    {
        this.parent = (parentCate == null) ? null : new Tie<Category>(
                parentCate);
        this.name = name;
        this.description = desc;
    }

    public Category getParent()
    {
        return parent == null ? null : parent.o;
    }

    @Retying("parent")
    public void changeParent(Category newParent)
    {
        this.parent = (newParent == null) ? null : new Tie<Category>(newParent);
    }

    public KinSet<Category, Category> getSubcategories()
    {
        return this.subcategories;
    }

    public KinSet<Product, Product> getMainProducts()
    {
        return this.products;
    }

    public KinSet<Categorization, Product> getMoreProducts()
    {
        return this.moreProducts;
    }

    private void enlistProducts(List<Product> l)
    {
        for (Kin<?, Product> p : products)
            l.add(p.getO());
        for (Kin<?, Product> p : moreProducts)
            l.add(p.getO());
        for (Kin<?, Category> subcate : subcategories)
            subcate.getO().enlistProducts(l);
    }

    public List<Product> getAllProducts()
    {
        List<Product> all = new ArrayList<Product>(100);
        this.enlistProducts(all);
        return Collections.unmodifiableList(all);
    }

    public String getName()
    {
        return this.name;
    }

    @Writing
    public void setName(String name)
    {
        this.name = name;
    }

    public String getDesciption()
    {
        return this.description;
    }

    @Writing
    public void setDescription(String desc)
    {
        this.description = desc;
    }

}