Package org.apache.ojb.tutorial1

Examples of org.apache.ojb.tutorial1.UseCase

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        writer.println("<tr><td><b>ID</b></td> <td><b>NAME</b></td> <td><b>PRICE</b></td> <td><b>STOCK</b></td></tr>");
        if (products != null)
        {
            for (Iterator it = products.iterator(); it.hasNext();)
            {
               Product a = (Product)it.next();
   
                writer.println("<tr><td>" + a.getId() + "</td> <td>" + a.getName() + "</td> <td>" + a.getPrice()+ "</td> <td>" + a.getStock() + "</td></tr>");  
            }
        }
        writer.println("</table>");
       
    }
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        // We don't have a reference to the selected Product.
        // So first we have to lookup the object,
        // we do this by a query by example (QBE):
        // 1. build an example object with matching primary key values:
        Product example = new Product();
        example.setId(id);

        // 2. build a QueryByIdentity from this sample instance:
        Query query = new QueryByIdentity(example);
        try
        {
            // 3. start broker transaction
            broker.beginTransaction();

            // 4. lookup the product specified by the QBE
            Product toBeEdited = (Product) broker.getObjectByQuery(query);

            // 5. edit the existing entry
            System.out.println("please edit the product entry");
            in = readLineWithMessage("enter name (was " + toBeEdited.getName() + "):");
            toBeEdited.setName(in);
            in = readLineWithMessage("enter price (was " + toBeEdited.getPrice() + "):");
            toBeEdited.setPrice(Double.parseDouble(in));
            in = readLineWithMessage("enter available stock (was " + toBeEdited.getStock() + "):");
            toBeEdited.setStock(Integer.parseInt(in));



            // 6. now ask broker to store the edited object
            broker.store(toBeEdited);
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        // We don't have a reference to the selected Product.
        // So first we have to lookup the object,
        // we do this by a query by example (QBE):
        // 1. build an example object with matching primary key values:
        Product example = new Product();
        example.setId(id);
        // 2. build a QueryByIdentity from this sample instance:
        Query query = new QueryByIdentity(example);
        try
        {
            // start broker transaction
            broker.beginTransaction();
            // lookup the product specified by the QBE
            Product toBeDeleted = (Product) broker.getObjectByQuery(query);
            // now ask broker to delete the object
            broker.delete(toBeDeleted);
            // commit transaction
            broker.commitTransaction();
        }
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    /** perform this use case*/
    public void apply()
    {
        // this will be our new object
        Product newProduct = new Product();
       
        // thma: attention, no sequence numbers yet for ojb/prevalyer       
        newProduct.setId((int)System.currentTimeMillis());
       
        // now read in all relevant information and fill the new object:
        System.out.println("please enter a new product");
        String in = readLineWithMessage("enter name:");
        newProduct.setName(in);
        in = readLineWithMessage("enter price:");
        newProduct.setPrice(Double.parseDouble(in));
        in = readLineWithMessage("enter available stock:");
        newProduct.setStock(Integer.parseInt(in));

        // now perform persistence operations
        try
        {
            // 1. open transaction
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        writer.println("<tr><td><b>ID</b></td> <td><b>NAME</b></td> <td><b>PRICE</b></td> <td><b>STOCK</b></td></tr>");
        if (products != null)
        {
            for (Iterator it = products.iterator(); it.hasNext();)
            {
               Product a = (Product)it.next();
   
                writer.println("<tr><td>" + a.getId() + "</td> <td>" + a.getName() + "</td> <td>" + a.getPrice()+ "</td> <td>" + a.getStock() + "</td></tr>");  
            }
        }
        writer.println("</table>");
       
    }
View Full Code Here
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        // We don't have a reference to the selected Product.
        // So first we have to lookup the object,
        // we do this by a query by example (QBE):
        // 1. build an example object with matching primary key values:
        Product example = new Product();
        example.setId(id);

        // 2. build a QueryByIdentity from this sample instance:
        Query query = new QueryByIdentity(example);
        try
        {
            // 3. start broker transaction
            broker.beginTransaction();

            // 4. lookup the product specified by the QBE
            Product toBeEdited = (Product) broker.getObjectByQuery(query);

            // 5. edit the existing entry
            System.out.println("please edit the product entry");
            in = readLineWithMessage("enter name (was " + toBeEdited.getName() + "):");
            toBeEdited.setName(in);
            in = readLineWithMessage("enter price (was " + toBeEdited.getPrice() + "):");
            toBeEdited.setPrice(Double.parseDouble(in));
            in = readLineWithMessage("enter available stock (was " + toBeEdited.getStock() + "):");
            toBeEdited.setStock(Integer.parseInt(in));



            // 6. now ask broker to store the edited object
            broker.store(toBeEdited);
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        // We don't have a reference to the selected Product.
        // So first we have to lookup the object,
        // we do this by a query by example (QBE):
        // 1. build an example object with matching primary key values:
        Product example = new Product();
        example.setId(id);
        // 2. build a QueryByIdentity from this sample instance:
        Query query = new QueryByIdentity(example);
        try
        {
            // start broker transaction
            broker.beginTransaction();
            // lookup the product specified by the QBE
            Product toBeDeleted = (Product) broker.getObjectByQuery(query);
            // now ask broker to delete the object
            broker.delete(toBeDeleted);
            // commit transaction
            broker.commitTransaction();
        }
View Full Code Here
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    /** perform this use case*/
    public void apply()
    {
        // this will be our new object
        Product newProduct = new Product();
       
        // thma: attention, no sequence numbers yet for ojb/prevalyer       
        newProduct.setId((int)System.currentTimeMillis());
       
        // now read in all relevant information and fill the new object:
        System.out.println("please enter a new product");
        String in = readLineWithMessage("enter name:");
        newProduct.setName(in);
        in = readLineWithMessage("enter price:");
        newProduct.setPrice(Double.parseDouble(in));
        in = readLineWithMessage("enter available stock:");
        newProduct.setStock(Integer.parseInt(in));

        // now perform persistence operations
        try
        {
            // 1. open transaction
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Related Classes of org.apache.ojb.tutorial1.UseCase

  • org.apache.ojb.broker.prevayler.demo.UCDeleteProduct
  • org.apache.ojb.broker.prevayler.demo.UCEditProduct
  • org.apache.ojb.broker.prevayler.demo.UCEnterNewProduct
  • org.apache.ojb.broker.query.Query
  • org.apache.ojb.broker.query.QueryByCriteria
  • org.apache.ojb.broker.query.QueryByIdentity
  • org.apache.ojb.servlet.TestServlet
  • java.util.Collection
  • java.util.Vector
  • java.io.InputStreamReader
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