add parent/child rels

3 years ago · f9f64ba93f
parent 65023a7520
commit f9f64ba93f
1 changed files with 4 additions and 0 deletions
--- a/src/main/java/eu/dnetlib/dhp/schema/common/ModelConstants.java
+++ b/src/main/java/eu/dnetlib/dhp/schema/common/ModelConstants.java
@ -148,6 +148,10 @@ public class ModelConstants {

 	public static final String IS_DIFFERENT_FROM = "isDifferentFrom";

+	public static final String HIERARCHY = "hierarchy"; // subreltype
+	public static final String IS_PARENT_OF = "isParentOf";
+	public static final String IS_CHILD_OF = "isChildOf";
+
 	public static final String UNKNOWN = "UNKNOWN";
 	public static final String NOT_AVAILABLE = "not available";