/**
* Basic infrastructure of the field definition.
- * Specific engines will need to override it at least for getMapping,
- * but can reuse other parts.
+ *
+ * Specific engines should extend this class and at at least,
+ * override the getMapping method, but can reuse other parts.
+ *
* @since 1.28
*/
abstract class SearchIndexFieldDefinition implements SearchIndexField {
public function merge( SearchIndexField $that ) {
// TODO: which definitions may be compatible?
if ( ( $that instanceof self ) && $this->type === $that->type &&
- $this->flags === $that->flags && $this->type !== self::INDEX_TYPE_NESTED
+ $this->flags === $that->flags && $this->type !== self::INDEX_TYPE_NESTED
) {
return $that;
}
$this->subfields = $subfields;
return $this;
}
+
+ /**
+ * @param SearchEngine $engine
+ *
+ * @return array
+ */
+ abstract public function getMapping( SearchEngine $engine );
+
}