@debug@ - what does this do exactly?

[asookazian]

Not understanding the @...@ syntax below. Plz explain... thx.

<?xml version="1.0" encoding="UTF-8"?>
<components xmlns="http://jboss.com/products/seam/components"
 xmlns:core="http://jboss.com/products/seam/core"
 xmlns:persistence="http://jboss.com/products/seam/persistence"
 xmlns:drools="http://jboss.com/products/seam/drools"
 xmlns:bpm="http://jboss.com/products/seam/bpm"
 xmlns:security="http://jboss.com/products/seam/security"
 xmlns:mail="http://jboss.com/products/seam/mail"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation=
 "http://jboss.com/products/seam/core http://jboss.com/products/seam/core-2.0.xsd
 http://jboss.com/products/seam/persistence http://jboss.com/products/seam/persistence-2.0.xsd
 http://jboss.com/products/seam/drools http://jboss.com/products/seam/drools-2.0.xsd
 http://jboss.com/products/seam/bpm http://jboss.com/products/seam/bpm-2.0.xsd
 http://jboss.com/products/seam/security http://jboss.com/products/seam/security-2.0.xsd
 http://jboss.com/products/seam/mail http://jboss.com/products/seam/mail-2.0.xsd
 http://jboss.com/products/seam/components http://jboss.com/products/seam/components-2.0.xsd">

 <core:init debug="@debug@" jndi-pattern="@jndiPattern@"/>

[jbalunas]

That is just a replacement key for the build script. There is a property in the build script who's value will replace the @debug@.

so there is a property called "debug" set to true - then when the project is built the file in the war/ear/etc... will be debug="true"

[maxandersen]

it is not just for the build script - it is also done by runtime by seam to replace it with values from component.properties

this is what makes it possible for us in jboss tools not to have additional build step and multiple duplicate files to support both test and deployment runs.

[asookazian]

I'm seeing the following snippet at the top of my build.xml:

<property name="profile" value="dev" />
<property file="build-${profile}.properties" />

component.properties (runtime):

jndiPattern \#{ejbName}/local
debug true

build-dev.properties (buildtime):

debug=true
action.dir=WEB-INF/dev

So I guess it makes sense now. The @...@ is basically a variable that is plugged in from the *.properties files above at different times.

cool, thx.

The explanation in the Seam 2.0.0.GA ref pdf can be more specific: "The funny @ symbols are there because our Ant build script puts the correct JNDI pattern in when we deploy the application." - pg. 7