1 files changed, 47 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/SQLStore/Lookup/ListLookup.php b/www/wiki/extensions/SemanticMediaWiki/src/SQLStore/Lookup/ListLookup.php
new file mode 100644
index 00000000..5772c841
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/SQLStore/Lookup/ListLookup.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace SMW\SQLStore\Lookup;
+
+/**
+ * A simple interface for fetching a list from either a DB or being used as
+ * decorator to cache results
+ *
+ * @license GNU GPL v2+
+ * @since 2.2
+ *
+ * @author mwjames
+ */
+interface ListLookup {
+
+	/**
+	 * @since 2.2
+	 *
+	 * @return array
+	 */
+	public function fetchList();
+
+	/**
+	 * @since 2.2
+	 *
+	 * @return boolean
+	 */
+	public function isFromCache();
+
+	/**
+	 * A unique identifier that can describe a specific lookup instance to
+	 * distinguish it from other lookup's of the same list
+	 *
+	 * @since 2.2
+	 *
+	 * @return string
+	 */
+	public function getHash();
+
+	/**
+	 * @since 2.2
+	 *
+	 * @return integer
+	 */
+	public function getTimestamp();
+
+}