Injecting references between POJO instances is one way of configuring a service however we can also inject values into POJO properties. The following deployment descriptor shows how we can configure the HRManager instance to have a hiring freeze and the AgeBasedSalaryStrategy to have new minimum and maximum salary values:

<?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">false</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>

       

</deployment>

As with wiring POJOs together the classes need to have public setter methods for the relevant properties so that values can be injected. For example the HRManager class has a setHiringFreeze(boolean hiringFreeze) method and the AgeBasedSalaryStrategy class has setMinSalary(int minSalary) and setMaxSalary(int maxSalary) methods.