Steve Rowe created SOLR-4892:
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Summary: Add field update processors to parse/convert String-typed
fields to Date, Number, and Boolean
Key: SOLR-4892
URL: https://issues.apache.org/jira/browse/SOLR-4892
Project: Solr
Issue Type: New Feature
Components: update
Reporter: Steve Rowe
Assignee: Steve Rowe
Priority: Minor
Add {{FieldMutatingUpdateProcessorFactory}} subclasses
{{ParseFooUpdateProcessorFactory}}, where {{Foo}} includes {{Date}},
{{Double}}, {{Long}}, and {{Boolean}}.
These factories will have a default selector that matches all fields that
either don’t match any schema field, or are in the schema with the
corresponding {{typeClass}}. They can optionally support a list of multiple
format specifiers. If they see a value that is not a CharSequence, or can't
parse the value using a configured format, they ignore it and leave it as is.
For multi-valued fields, these processors will not convert any values unless
all are first successfully parsed. Ordering the processors [Boolean, Long,
Double, Date] will allow e.g. values [2, 5, 8.6] to be left alone by the
Boolean and Long processors, but then converted by the Double processor.
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