For a script, the source must be a javax.script.Invocable
object.
function | The function/method/operation to call. |
parameters | The values to use as arguments. |
source | The java object or script Invocable on which to invoke the method/function. |
Example 1 | Invoke a method on a bean. |
Example 2 | Invoke a static method of a class. |
Example 3 | Invoking a function of a script. |
Configured By | ATTRIBUTE |
Access | READ_WRITE |
Required | Yes. |
The function/method/operation to call.
Configured By | ELEMENT |
Access | READ_WRITE |
Required | Must match the expected arguments.. |
The values to use as arguments.
Configured By | ELEMENT |
Access | READ_WRITE |
Required | Yes. |
The java object or script Invocable on which to invoke the method/function.
Invoke a method on a bean. The method takes a single date parameter which is uses to generate a time of day dependent greeting.
<oddjob> <job> <sequential> <jobs> <variables id="vars"> <message> <invoke function="greeting"> <source> <bean class="org.oddjob.script.GreetingService"/> </source> <parameters> <schedule> <date> <value value="${date}"/> </date> <schedule> <schedules:now xmlns:schedules="http://rgordon.co.uk/oddjob/schedules"/> </schedule> </schedule> </parameters> </invoke> </message> </variables> <echo id="echo-greeting">${vars.message}</echo> </jobs> </sequential> </job> </oddjob>The ${date} reference is there so that it can be injected during a test, to get a guaranteed result. When this is example is run as is, this is null so the system clock to be used there by giving a real time based greeting.
One subtle point to note about Oddjob configuration that this example highlights is to do with when types are resolved. The invoke type will be resolved when the echo job is run. The schedule type will be resolved when the variables job is run. If the echo job were scheduled to run several hours after the variables job had run it would not give the correct greeting!
Invoke a static method of a class.
<oddjob> <job> <sequential> <jobs> <variables id="vars"> <message> <invoke function="static greetPerson"> <source> <class name="org.oddjob.script.GreetingService"/> </source> <parameters> <value value="John"/> </parameters> </invoke> </message> </variables> <echo id="echo-greeting">${vars.message}</echo> </jobs> </sequential> </job> </oddjob>
Invoking a function of a script. See the script examples.