JavaBeans in Hybris..

JavaBeans: 

 JavaBean  is a Java class that:

1.     Implements the Serializable interface

2.     Has a no-argument constructor

3.     JavaBean properties must have public setter and getter methods

 Java Bean makes it easy to reuse software components.

Example of JavaBean:

public class JavaBeanDemo  implements java.io.Serializable

{

          private int num;

          private String Fname;

                  

          public JavaBeanDemo()

          {

                   // default constructor

          }

          public void setNum(final int num)

          {

                   this.num = num;

          }              

          public int getNum()

          {

                   return num;

          }

          public void setFname(final String Fname)

          {

                   this.Fname = Fname;

          }

          public String getFname()

          {

                   return Fname;

          }   

}

 JavaBean in Hybris:

• In hybris javabeans are automatically generated.
• Each extension may provide a bean configuration file in this file class name, attributes or superclass are defined. 
• Java Beans or Enums definitions are melded across extensions.
• Java beans Contain an abstraction of models.  

Example for custom java bean Generating:

Configure the bean in extension-beans.xml

    <bean class="com.hybrisdemo.data.JavaBeanDemo">

             <property name="num" type="int"/>

               <property name="Fname" type="String"/>

        </bean>

The following JavaBean is Generated under platform/bootstrap/gensrc folder based on above configuration. it generated  when ever we call “ant all” ( or)  “ant clean all” target.

 public class JavaBeanDemo  implements java.io.Serializable

{

          private int num;

          private String Fname;

                  

          public JavaBeanDemo()

          {

                   // default constructor

          }

       //Setters and getters methods..

}

• Java beans are useful as DataObjects used by Frontend layer.
• Merge attributes into existing beans.

For example:- extenstion1 and extenstion2 have same bean class with different attributes that attributes merge into one javabean class Generated under platform/bootstrap/gensrc.

 extension1-beans.xml:- 

        <bean class="com.hybrisdemo.data.JavaBeanDemo">

             <property name="num" type="int"/>

                  <property name="Fname" type="String"/>

        </bean>

 extension2-beans.xml:-

        <bean class="com.hybrisdemo.data.JavaBeanDemo">

             <property name="num" type="int"/>

                  <property name="Fname" type="String"/>

                  <property name=”Lname” type=”String”/>

        </bean>

Generated JavaBean Class:- 

public class JavaBeanDemo  implements java.io.Serializable

{

       private int num;

       private String Fname;

       private String Lname;

             

       public JavaBeanDemo()

       {

              // default constructor

       }

       public void setNum(final int num)

       {

              this.num = num;

       }           

       public int getNum()

       {

              return num;

       }      

       public void setFname(final String Fname)

       {

              this.Fname = Fname;

       }      

       public String getFname()

       {

              return Fname;

       }              

       public void setLname(final String Lname)

       {

              this.Lname = Lname;

       }       

       public String getLname()

       {

              return Lname;

       }

}