So here's the real question :)
Do attachments to component contexts of an unit get treated the same way? Do
these attachments to component contexts get passed onto the deployers? From
what i see this is not the case.
Here's the example:
// This one doesn't do much and is not of much relevance in this
| // example. It just creates a component which can be consumed
| // by our component deployer (MyComponentDeployer - see next)
| public class TestDeployer extends AbstractDeployer
| {
|
| public TestDeployer()
| {
| setStage(DeploymentStages.POST_CLASSLOADER);
| // this is our output which is consumed by MyComponentDeployer
| setOutput(TestAttachment.class);
| // some input - not relevant in this example
| setInput(JBossMetaData.class);
| }
|
| // creates a component to the unit and adds an attachment to the component
| // so that the MyComponentDeployer can consume it
| public void deploy(DeploymentUnit unit) throws DeploymentException
| {
| DeploymentUnit comp = unit.addComponent("something");
| comp.addAttachment(TestAttachment.class, new TestAttachment("hello"));
| logger.info("Added attachment to component in unit " + unit);
| }
| }
|
// This one is important - this deployer is a component only deployer
| // and works on the component that was created by our earlier TestDeployer
| public class MyComponentDeployer extends AbstractDeployer
| {
|
|
| public MyComponentDeployer()
| {
| setStage(DeploymentStages.REAL);
| // the attachment that was added to the component by our earlier
deployer
| // will be our input
| setInput(TestAttachment.class);
| // we work only on components
| setComponentsOnly(true);
| }
|
| // Here we just add an attachment to the unit (which acutally is an
component)
| // Any further deployers (MyFinalDeployer - see next) will use this
attachment
| // as input
| public void deploy(DeploymentUnit unit) throws DeploymentException
| {
| logger.info("Deploying unit : " + unit);
| // doesn't work
| unit.addAttachment(AnotherType.class, new AnotherType());
| }
|
| }
|
|
// This one (tries to) consumes the attachment that was added by the component
| // deployer (see above)
| public class MyFinalDeployer extends AbstractDeployer
| {
| private static Logger logger = Logger.getLogger(OneMoreDeployer.class);
|
| public MyFinalDeployer()
| {
| setStage(DeploymentStages.REAL);
| // the attachment that was added by the component deployer
| setInput(AnotherType.class);
|
| }
|
| // never reaches here.
| public void deploy(DeploymentUnit unit) throws DeploymentException
| {
| logger.info("Deploying another type " + unit);
|
| }
|
| }
|
|
|
There are 3 deployers involved here:
1) The TestDeployer creates a component to an unit and also attaches an
attachment to the component (works fine)
2) The MyComponentDeployer consumes this component context and additionally
creates an attachment to it (works fine/or maybe not).
3) MyFinalDeployer is supposed to consume the attachment created in #2, but it
never does. This deployer is considered "not relevant".
The only way i could get this to work was to add the attachment to the parent
of the component context in #2. So:
public class MyComponentDeployer extends AbstractDeployer
| {
|
| // I don't know why i need to add the attachment to the
| // parent. But it works, so let's for the time being do that
| public void deploy(DeploymentUnit unit) throws DeploymentException
| {
| logger.info("Deploying unit : " + unit);
| // here - i'm clueless, the attachment needs to be added to parent for
some reason
| // Note, this is a component deployer and works on component context
| unit.getParent().addAttachment(AnotherType.class, new AnotherType());
| }
|
| }
|
Doing this makes MyFinalDeployer (in #3) "relevant" and the unit is passed on
the deploy method of MyFinalDeployer.
So the question is - what am i missing? :)
View the original post :
http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4215152#4215152
Reply to the post :
http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4215152
_______________________________________________
jboss-user mailing list
[email protected]
https://lists.jboss.org/mailman/listinfo/jboss-user
