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4.2. Deploying the Service

After creating the client, you can deploy the Human Resources service. This is done by entering the d option from the TUI. Output indicates that the BasicXMLDeployer has parsed the jboss-beans.xml file using the URL, and instantiated the beans found within.

Note

The Microcontainer is able to instantiate the beans because their classes are available in the extension classpath inside the lib/humanResourcesService.jar file. You can also place these classes in an exploded directory structure and add it to the application classpath, but packaging them in a JAR is typically more convenient.
The deployment descriptor is entirely separate from the humanResourcesService.jar file. This enables easy editing of it for testing purposes. The jboss-beans.xml file in the example contains some commented-out fragments of XML which show some of the possible configurations. 
<?xml version="1.0" encoding="UTF-8"?>
<deployment xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	    xsi:schemaLocation="urn:jboss:bean-deployer:2.0 bean-deployer_2_0.xsd"
	    xmlns="urn:jboss:bean-deployer:2.0">

  <bean name="HRService" class="org.jboss.example.service.HRManager">
    <!-- <property name="hiringFreeze">true</property>
	 <property name="salaryStrategy"><inject bean="AgeBasedSalary"/></property> -->
  </bean>

  <!-- <bean name="AgeBasedSalary" class="org.jboss.example.service.util.AgeBasedSalaryStrategy">
       <property name="minSalary">1000</property>
       <property name="maxSalary">80000</property>
     </bean>

     <bean name="LocationBasedSalary"
	   class="org.jboss.example.service.util.LocationBasedSalaryStrategy">
       <property name="minSalary">2000</property>
       <property name="maxSalary">90000</property>
       </bean> -->

</deployment>
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Important

Depending on how you access the service at run-time, you may need to shut down the application and restart it again to redeploy the service and see your changes. This reduces the flexibility of the application, but results in faster performance at run-time. Alternatively you may be able to simply redeploy the service while the application is running. This increases flexibility but results in slower run-time performance. Keep these trade-offs under consideration when designing your applications.
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