public interface IMetadataChecksummer
ImporterDocumentcan hold different values, but be deemed logically the same. Such documents do not have to be equal, but they should return the same checksum. An example of this can be two different URLs pointing to the same document, where only a single instance should be kept.
IXMLConfigurableshould offer the following XML configuration usage:
<metadataChecksummer class="(class)"> keep="[false|true]" targetField="(optional metadata field to store the checksum)" />
targetFieldis ignored unless the
keepattribute is set to
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