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https://issues.apache.org/jira/browse/SOLR-716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12625032#action_12625032
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Noble Paul commented on SOLR-716:
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bq.It would seem preferable & possible to only store the properties (versus the
CoreDescriptor) in the SolrResourceLoader; this is the only piece needed for
evaluation.
CoreDescriptor can be easily obtained from SolrCore anyway and SolrCore is
available to every single class in Solr . SolrResourceLoader is our own class
and it does not expose the object (it is private and there is no getter). This
enables the resourceloader to get access to any other property from
CodeDescriptor (in future) if needed .
bq.users cannot specify a variable inside solr.xml
Is it very useful ? considering that it can only substitute system properties?
> Support properties in configuration files
> -----------------------------------------
>
> Key: SOLR-716
> URL: https://issues.apache.org/jira/browse/SOLR-716
> Project: Solr
> Issue Type: New Feature
> Affects Versions: 1.3
> Reporter: Shalin Shekhar Mangar
> Assignee: Shalin Shekhar Mangar
> Fix For: 1.3
>
> Attachments: SOLR-716.patch, SOLR-716.patch
>
>
> Initially suggested by Hoss at
> https://issues.apache.org/jira/browse/SOLR-350?focusedCommentId=12562834#action_12562834
> and taken forward by Henri in SOLR-646
> # Allows users to define global as well as core-specific properties in
> solr.xml which can be used in solrconfig.xml and schema.xml
> {code:xml}
> <solr persistent="false">
> <property name="var" value="value" />
> <cores adminPath="/admin/cores">
> <core name="core0" instanceDir="core0">
> <property name="var" value="value" />
> </core>
> <core name="core1" instanceDir="core1" />
> </cores>
> </solr>
> {code}
> # The following core-specific properties will be added automatically:
> ** solr.core.instanceDir
> ** solr.core.name
> ** solr.core.configName
> ** solr.core.schemaName
> # The variable substitution will be done in this fall-back order --
> core-specific, implicit, global, system properties.
> # The properties defined in solr.xml should also be persisted back as is
> (without evaluation).
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