Rupert Westenthaler created STANBOL-1399:
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Summary: Allow target fields for wildcard field mappings
Key: STANBOL-1399
URL: https://issues.apache.org/jira/browse/STANBOL-1399
Project: Stanbol
Issue Type: Improvement
Components: Entityhub
Affects Versions: 0.12.0
Reporter: Rupert Westenthaler
Assignee: Rupert Westenthaler
Priority: Minor
Fix For: 1.0.0, 0.12.1
Currently FieldMappings the do use a wildcard are not allowed to be mapped to
an target field.
The main reason for this is that things like the following example
{code}
dc:* > dct:*
{code}
that would copy all fields from the dc elements namespace to the dc terms
namespace are not implemented.
However copying multiple fields to a single one are already supported but not
accepted by the FieldMappings constructor. A possible usage scenario is to
collect all references or literal values to create an disambiguation context.
See the following listing for an example.
{code}
* | d=entityhub:text > dis:textContext
* | d=entityhub:reference > dis:refContext
{code}
The change is really trivial as one needs only comment the check in the
constructor of FieldMapping that explicitly disallows those things.
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