1 files changed, 81 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/Query/Result/ResolverJournal.php b/www/wiki/extensions/SemanticMediaWiki/src/Query/Result/ResolverJournal.php
new file mode 100644
index 00000000..d306a353
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/Query/Result/ResolverJournal.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace SMW\Query\Result;
+
+use SMW\DIProperty;
+use SMW\DIWikiPage;
+use SMWDataItem as DataItem;
+
+/**
+ * This class records selected entities used in a QueryResult by the time the
+ * ResultArray creates an object instance which avoids unnecessary work in the
+ * QueryResultDependencyListResolver (in terms of recursive processing of the
+ * QueryResult) to find related "column" entities (those related to a
+ * printrequest).
+ *
+ * @license GNU GPL v2+
+ * @since 2.4
+ *
+ * @author mwjames
+ */
+class ResolverJournal {
+
+	/**
+	 * @var array
+	 */
+	private $dataItems = [];
+
+	/**
+	 * @var array
+	 */
+	private $properties = [];
+
+	/**
+	 * @since 2.4
+	 *
+	 * @return array
+	 */
+	public function getEntityList() {
+		return $this->dataItems;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @return array
+	 */
+	public function getPropertyList() {
+		return $this->properties;
+	}
+
+	/**
+	 * @since 2.4
+	 */
+	public function prune() {
+		$this->dataItems = [];
+		$this->properties = [];
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @param DataItem $dataItem
+	 */
+	public function recordItem( DataItem $dataItem ) {
+		if ( $dataItem instanceof DIWikiPage ) {
+			$this->dataItems[$dataItem->getHash()] = $dataItem;
+		}
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @param DIProperty|null $property
+	 */
+	public function recordProperty( DIProperty $property = null ) {
+		if ( $property !== null ) {
+			$this->properties[$property->getKey()] = $property;
+		}
+	}
+
+}