--- /dev/null
+package org.simantics.simulation.project;\r
+\r
+import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
+import org.simantics.utils.datastructures.hints.IHintContext.KeyOf;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public final class ExperimentManagerKeys {\r
+\r
+ /**\r
+ * Affects how {@link ExperimentManager} works when new experiments are\r
+ * activated through\r
+ * {@link IExperimentManager#startExperiment(org.simantics.db.Resource, IExperimentActivationListener, boolean)}\r
+ * . If this hint is set to {@link ExperimentManagerMode#SINGLE_EXPERIMENT},\r
+ * the manager will shut down the previously active experiment before\r
+ * activating the new experiment. Otherwise the previous experiment will not\r
+ * be touched by ExperimentManager.\r
+ */\r
+ public static final Key EXPERIMENT_MANAGER_MODE = new KeyOf(ExperimentManagerMode.class, "EXPERIMENT_MANAGER_MODE");\r
+\r
+}\r