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https://issues.apache.org/jira/browse/SOLR-1664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12791927#action_12791927
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Grant Ingersoll commented on SOLR-1664:
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I think SchemaField needs to remain final. I don't think we should be allowing
people to extend SchemaField.
> Some Methods in FieldType actually should be in SchemaField
> -----------------------------------------------------------
>
> Key: SOLR-1664
> URL: https://issues.apache.org/jira/browse/SOLR-1664
> Project: Solr
> Issue Type: Improvement
> Reporter: Noble Paul
> Fix For: 1.5
>
> Attachments: SOLR-1664.patch
>
>
> The following methods are only overridable from FieldType.
> {code:java}
> public Field createField(SchemaField field, String externalVal, float boost) ;
> protected Field.TermVector getFieldTermVec(SchemaField field,String
> internalVal) ;
> protected Field.Store getFieldStore(SchemaField field,String internalVal);
> protected Field.Index getFieldIndex(SchemaField field,String internalVal);
> public ValueSource getValueSource(SchemaField field, QParser parser);
> public Query getRangeQuery(QParser parser, SchemaField field, String part1,
> String part2, boolean minInclusive, boolean maxInclusive) ;
> {code}
> if there is anything specific to be done on a per-field basis it is not
> possible. if we allow overriding SchemaField it will be more flexible.
> I hope this can make it simpler to implement SOLR-1131
> So ,there are two ways of overriding a functionality.
> * Override Fieldtype#createSchemaField() and provide new implementation of
> SchemaField
> * Override methods from FieldType itself(if the behavior is not per field )
> as it is now
> SchemaField is made non-final and Solr only invokes methods on SchemaField
> and not FieldType directly
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