6.2

Table Of Contents
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When a component uses multiple life cycle stages, the property value can be changed in the
INSTALL life cycle stage. The new value is sent to the next life cycle stage. Action scripts can
compute the value of a property during deployment to supply the value to other dependent scripts.
Note You cannot change the content property value for a component that uses multiple life cycle
stages.
For example, in the Clustered Dukes Bank sample application, JBossAppServer service computes
the JVM_ROUTE property during the install life cycle stage. This property is used by the
JBossAppServer service to configure the life cycle. Apache load balancer service then binds its
JVM_ROUTE property to the all (appserver:JbossAppServer:JVM_ROUTE) property to get the final
computed value of node0 and node1.
If a component requires a property value from another component to complete an application
deployment successfully, you must state explicit dependencies in the application blueprint.
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For a script to run without any interruptions, the return value must be set to zero (0).
This setting allows the agent to capture all of the properties and send them to the Application
Services server.
Using Application Services
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