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Re: [equinox-dev] Exporting packages without a version
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This is a common misconception. There is no connection between bundle version and exported package versions. A bundle that imports using Import-Package will only care about the exported package versions, and a bundle that requires using Require-Bundle will only care about the Bundle-Version.
Since Import-Package is the correct way to consume dependencies, it’s a significant problem that so many Eclipse bundles fail to version their packages.
Neil
> On 11 Dec 2014, at 14:08, Dennis Hübner <dennis.huebner@xxxxxxxxx> wrote:
>
> Hi equinox-dev team,
>
> I have a question regarding exporting an unversioned package.
> If I look over the bundles in eclipse, the most of them (expect of some orbit bundles) exports packages without a version.
> We do it likewise e.g.:
>
> Manifest-Version: 1.0
> Bundle-ManifestVersion: 2
> Bundle-Name: Xbase Runtime Library
> Bundle-SymbolicName: org.eclipse.xtext.xbase.lib
> Bundle-Version: 2.8.0.qualifier
> Bundle-RequiredExecutionEnvironment: J2SE-1.5
> Export-Package: org.eclipse.xtend2.lib,
> org.eclipse.xtext.xbase.lib,
> org.eclipse.xtext.xbase.lib.internal;x-internal:=true,
> org.eclipse.xtext.xbase.lib.util
>
> In an osqi container I see that this packages are exported with 0.0.0 it doesn’t care what the bundle-version is:
> osgi> b 584
> org.eclipse.xtext.xbase.lib_2.7.3.v201411190455 [584]
> Id=584, Status=RESOLVED Data Root=/Users/dhuebner/Entwicklung/xtext-new/eclipse/configuration/org.eclipse.osgi/584/data
> "No registered services."
> No services in use.
> Exported packages
> org.eclipse.xtend2.lib; version="0.0.0"[exported]
> org.eclipse.xtext.xbase.lib; version="0.0.0"[exported]
> org.eclipse.xtext.xbase.lib.internal; version="0.0.0"[exported]
> org.eclipse.xtext.xbase.lib.util; version="0.0.0"[exported]
> Imported packages
> com.google.common.annotations; version="15.0.0" <com.google.guava_15.0.0.v201403281430 [4]>
> co
>
> osgi> b 626
> org.eclipse.xtext.xbase.lib_2.8.0.v201411111037 [626]
> Id=626, Status=RESOLVED Data Root=/Users/dhuebner/Entwicklung/xtext-new/eclipse/configuration/org.eclipse.osgi/626/data
> "No registered services."
> No services in use.
> Exported packages
> org.eclipse.xtend2.lib; version="0.0.0"[exported]
> org.eclipse.xtext.xbase.lib; version="0.0.0"[exported]
> org.eclipse.xtext.xbase.lib.internal; version="0.0.0"[exported]
> org.eclipse.xtext.xbase.lib.util; version="0.0.0"[exported]
> Imported packages
> com.google.common.annotations; version="15.0.0" <com.google.guava_15.0.0.v201403281430 [4]>
> com.goo
>
> I thought, that if my bundle exports a package without a version, it means, that the version is the same as a Bundle-Version. But from what I see in the osgi console it seems that I’m wrong.
>
> osgi> b org.eclipse.xtend.lib
> org.eclipse.xtend.lib_2.8.0.v201411111037 [544]
> Id=544, Status=RESOLVED Data Root=/Users/dhuebner/Entwicklung/xtext-new/eclipse/configuration/org.eclipse.osgi/544/data
> "No registered services."
> No services in use.
> Exported packages
> org.eclipse.xtend.lib; version="0.0.0"[exported]
> org.eclipse.xtend.lib.annotations; version="0.0.0"[exported]
> Imported packages
> com.google.common.annotations; version="15.0.0" <com.google.guava_15.0.0.v201403281430 [4]>
> ...
> org.eclipse.xtext.xbase.lib; version="0.0.0" <org.eclipse.xtext.xbase.lib_2.8.0.v201411111037 [626]>
> org.eclipse.xtext.xbase.lib; version="0.0.0" <org.eclipse.xtext.xbase.lib_2.7.3.v201411190455 [584]>
> org.eclipse.xtext.xbase.lib.internal; version="0.0.0" <org.eclipse.xtext.xbase.lib_2.8.0.v201411111037 [626]>
> org.eclipse.xtext.xbase.lib.internal; version="0.0.0" <org.eclipse.xtext.xbase.lib_2.7.3.v201411190455 [584]>
> org.eclipse.xtext.xbase.lib.util; version="0.0.0" <org.eclipse.xtext.xbase.lib_2.8.0.v201411111037 [626]>
> org.eclipse.xtext.xbase.lib.util; version="0.0.0" <org.eclipse.xtext.xbase.lib_2.7.3.v201411190455 [584]>
> No fragment bundles
> Required bundles
> osgi.identity; osgi.identity="org.eclipse.xtext.xbase.lib"; type="osgi.bundle"; version:Version="2.8.0.v201411111037"
> osgi.identity; osgi.identity="org.eclipse.xtend.lib.macro"; type="osgi.bundle"; version:Version="2.8.0.v201411111037"
>
> My question is, which package will be wired if an another bundle require (using Require-Bundle) an xbase.lib bundle with version constraint 2.8.0?
>
>
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