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2 Replies Latest reply on Feb 27, 2013 8:12 PM by zhouyaguo

why we need to generate -jandex.jar ? what is -jandex.jar used for?

zhouyaguo Feb 27, 2013 1:54 AM

Hi, all:

My steps:

step1. git clone https://github.com/jbossas/jboss-as.git

step2. vi jboss-as/build/build.xml

I find the following section:

<module-def name="org.jboss.resteasy.resteasy-atom-provider">
<maven-resource group="org.jboss.resteasy" artifact="resteasy-atom-provider" jandex="true"/>
</module-def>

step3. mvn install

step4. After check the target folder "jboss-as-7.1.3.Final/modules/org/jboss/resteasy/resteasy-atom-provider/main", i found a file named resteasy-atom-provider-2.3.3.Final-jandex.jar which contains a binary file named META-INF/jandex.idx

why we need to generate *-jandex.jar ? what is *-jandex.jar used for?

Thanks in advance!

Regards

Yaguo Zhou

1. Re: why we need to generate *-jandex.jar ? what is *-jandex.jar used for?

nickarls Feb 27, 2013 2:19 AM (in response to zhouyaguo)

From an article on in.relation.to

One major optimization is that we index annotation information by quickly scanning a subset of the class file data. For even greater efficiency we allow modules the ability to pregenerate a space efficient index which is designed to be loaded very quickly.
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2. Re: why we need to generate *-jandex.jar ? what is *-jandex.jar used for?

zhouyaguo Feb 27, 2013 8:12 PM (in response to nickarls)

Thanks for ur response, Nicklas.
u mean http://in.relation.to/Bloggers/WhyIsJBossAS7SoFast ? After asking google, i got the link, It's helpful.
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