vb.net generate 2d barcode OBJECT RELATIONAL MAPPING WITH HIBERNATE in Java

Generating PDF417 in Java OBJECT RELATIONAL MAPPING WITH HIBERNATE

CHAPTER 4 OBJECT RELATIONAL MAPPING WITH HIBERNATE
Making PDF417 In Java
Using Barcode drawer for Java Control to generate, create PDF 417 image in Java applications.
www.OnBarcode.com
Scanning PDF417 In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Case Study: Mapping the TechConf Domain Model
Creating USS-128 In Java
Using Barcode maker for Java Control to generate, create EAN / UCC - 13 image in Java applications.
www.OnBarcode.com
Paint GS1 RSS In Java
Using Barcode generation for Java Control to generate, create GS1 DataBar Limited image in Java applications.
www.OnBarcode.com
Now that you have seen how simple it is to map a simple POJO to a database table and interact with your data in an object-oriented fashion, it is time to move on to the development of the sample application. In a real application there will be not only a lot of simple mappings but also a lot of more complex situations involving more advanced ORM concepts. In this section we will tackle the development of the methods used by the TechConf application to retrieve and store data. As we flesh out each method, we will take a look at the POJOs involved, the HBM mappings, and the associated tables and its columns. Most of the persistence code that we will develop in this section will eventually be used in the DAO layer of the TechConf application. We will cover in great detail this important pattern when we build the business tier of the TechConf application.
Encoding Code 3 Of 9 In Java
Using Barcode maker for Java Control to generate, create Code 3/9 image in Java applications.
www.OnBarcode.com
Barcode Generation In Java
Using Barcode generator for Java Control to generate, create Barcode image in Java applications.
www.OnBarcode.com
Conferences Home Page
Data Matrix 2d Barcode Printer In Java
Using Barcode creator for Java Control to generate, create Data Matrix image in Java applications.
www.OnBarcode.com
Painting UPC Shipping Container Symbol ITF-14 In Java
Using Barcode drawer for Java Control to generate, create GTIN - 14 image in Java applications.
www.OnBarcode.com
The entry point into the TechConf system will be a page where the public can see the list of available conferences. A class diagram showing the Conference class and its relevant associations is shown in Figure 4-13.
Decoding PDF-417 2d Barcode In Visual Studio .NET
Using Barcode reader for VS .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
PDF-417 2d Barcode Maker In None
Using Barcode drawer for Microsoft Word Control to generate, create PDF 417 image in Word applications.
www.OnBarcode.com
Figure 4-13. Conference class and its associations As you can see from Figure 4-13, a conference can have one or more tracks (for example, a Java conference could have a JSE, JEE, and JME tracks) and a venue. Listing 4-14 shows the SQL statements needed to create the CONFERENCE, VENUE, and TRACK.
Data Matrix ECC200 Creator In .NET
Using Barcode generation for ASP.NET Control to generate, create DataMatrix image in ASP.NET applications.
www.OnBarcode.com
Paint 1D Barcode In C#
Using Barcode creation for Visual Studio .NET Control to generate, create Linear Barcode image in .NET framework applications.
www.OnBarcode.com
CHAPTER 4 OBJECT RELATIONAL MAPPING WITH HIBERNATE
Drawing 2D Barcode In Visual Basic .NET
Using Barcode maker for .NET Control to generate, create 2D Barcode image in .NET framework applications.
www.OnBarcode.com
Recognize QR In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Listing 4-14. SQL Create Statements for Tables ADDRESS, VENUE, CONFERENCE, and TRACK CREATE TABLE ADDRESS ( PK_ID INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT, STREETADDRESS VARCHAR(64), APTNUMBER VARCHAR(32), CITY VARCHAR(32), STATE CHAR(2), ZIPCODE VARCHAR(10) ); CREATE TABLE VENUE ( PK_ID INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT, NAME VARCHAR(32), PHONE VARCHAR(12), FAX VARCHAR(12), FK_ADDRESS_ID INTEGER NOT NULL, CONSTRAINT VENUE_ADDRESS_FK FOREIGN KEY(FK_ADDRESS_ID) REFERENCES ADDRESS(PK_ID), CONSTRAINT UNIQUE_VENUE_NAME UNIQUE(NAME) ); CREATE TABLE CONFERENCE ( PK_ID INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT, NAME VARCHAR(64) NOT NULL, DESCRIPTION LONGTEXT NOT NULL, STARTDATE DATETIME NOT NULL, ENDDATE DATETIME NOT NULL, ABSTRACTSUBMISSIONSTARTDATE DATETIME NOT NULL, ABSTRACTSUBMISSIONENDDATE DATETIME NOT NULL, FK_VENUE_ID INTEGER, CONSTRAINT CONFERENCE_VENUE_FK FOREIGN KEY(FK_VENUE_ID) REFERENCES VENUE(PK_ID), CONSTRAINT UNIQUE_CONFERENCE_NAME UNIQUE(NAME) ); CREATE TABLE TRACK ( PK_ID INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT, TITLE VARCHAR(32) NOT NULL, SUBTITLE VARCHAR(32), DESCRIPTION LONGTEXT, FK_CONFERENCE_ID INTEGER NOT NULL, CONSTRAINT TRACK_CONFERENCE_FK FOREIGN KEY(FK_CONFERENCE_ID) REFERENCES CONFERENCE(PK_ID), CONSTRAINT UNIQUE_TRACK_TITLE UNIQUE(TITLE) );
UPC - 13 Creator In .NET Framework
Using Barcode drawer for Reporting Service Control to generate, create GTIN - 13 image in Reporting Service applications.
www.OnBarcode.com
Recognizing QR-Code In Visual C#.NET
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
CHAPTER 4 OBJECT RELATIONAL MAPPING WITH HIBERNATE
Barcode Creator In Visual Studio .NET
Using Barcode creator for Reporting Service Control to generate, create Barcode image in Reporting Service applications.
www.OnBarcode.com
Barcode Drawer In VS .NET
Using Barcode drawer for Reporting Service Control to generate, create Barcode image in Reporting Service applications.
www.OnBarcode.com
Let s start by creating the Conference POJO as shown in Listing 4-15. As you can see the Conference class has a typed java.util.Set of Track and a field for a Venue along with a collection of simple fields representing the name, description, and several dates of relevance to the running of a conference. Listing 4-15. Conference Class POJO package com.integrallis.techconf.domain; ... import org.apache.commons.lang.builder.ToStringBuilder; public class Conference implements Serializable { ... // primary key private Integer id; // fields private Date abstractSubmissionStartDate; private String name; private String description; private Date abstractSubmissionEndDate; private Date endDate; private Date startDate; // many to one private Venue venue; // collections private Set<Track> tracks; // constructors public Conference () { } ... getters and setters public Venue getVenue () { return venue; } public void setVenue (Venue venue) { this.venue = venue; } public Set getTracks () { return tracks; }
Code39 Creator In Objective-C
Using Barcode encoder for iPad Control to generate, create Code39 image in iPad applications.
www.OnBarcode.com
Read Barcode In VB.NET
Using Barcode recognizer for Visual Studio .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
CHAPTER 4 OBJECT RELATIONAL MAPPING WITH HIBERNATE
public void setTracks (Set<Track> tracks) { this.tracks = tracks; } public void addTrack(Track track) { if (null == this.tracks) this.tracks = new HashSet<Track>(); track.setConference(this); tracks.add(track); } ... }
One-to-Many Mapping Using a Set
First we will map the one-to-many relationship between the Conference and Track POJOs. Let s start with a basic Conference HBM file with the simple field-to-column property mappings as shown in Listing 4-16. Listing 4-16. HBM Skeleton for the Conference Class < xml version="1.0" > <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping package="com.integrallis.techconf.domain"> <class name="Conference" table="conference"> <id column="PK_ID" name="Id" type="integer" > <generator class="identity" /> </id> <property name="AbstractSubmissionStartDate" length="19" not-null="true" type="timestamp" /> <property name="Name" length="64" not-null="true" type="string" />
Copyright © OnBarcode.com . All rights reserved.