X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.api.acr%2Fsrc%2Forg%2Fargeo%2Fapi%2Facr%2FContent.java;h=3cdf8d7dbec044f6a3a0c7a40fbe092b407a2b86;hb=975fb5e581d0650768afc68a0e839657f318e77a;hp=4aac92de75b2317f78b83bea56329535c630ff81;hpb=5a7b8b145ad29401b9940f7e1493a7dec1cd0156;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.api.acr/src/org/argeo/api/acr/Content.java b/org.argeo.api.acr/src/org/argeo/api/acr/Content.java
index 4aac92de7..3cdf8d7db 100644
--- a/org.argeo.api.acr/src/org/argeo/api/acr/Content.java
+++ b/org.argeo.api.acr/src/org/argeo/api/acr/Content.java
@@ -95,6 +95,10 @@ public interface Content extends Iterable<Content>, Map<QName, Object> {
 	 */
 	List<QName> getContentClasses();
 
+	default void addContentClasses(QName... contentClass) {
+		throw new UnsupportedOperationException("Adding content classes to " + getPath() + " is not supported");
+	}
+
 	/** AND */
 	default boolean isContentClass(QName... contentClass) {
 		List<QName> contentClasses = getContentClasses();
@@ -115,6 +119,14 @@ public interface Content extends Iterable<Content>, Map<QName, Object> {
 		return false;
 	}
 
+	/*
+	 * SIBLINGS
+	 */
+
+	default int getSiblingIndex() {
+		return 1;
+	}
+
 	/*
 	 * DEFAULT METHODS
 	 */