#1300 - NEW: FetchCountDistinct ... add example to javadoc + support chaining use via ExpressionList

src/main/java/io/ebeaninternal/server/expression/JunctionExpression.java

@@ -1,6 +1,7 @@
 package io.ebeaninternal.server.expression;
 
 import io.ebean.CacheMode;
+import io.ebean.CountDistinctOrder;
 import io.ebean.Expression;
 import io.ebean.ExpressionList;
 import io.ebean.FetchPath;
@@ -792,6 +793,11 @@ class JunctionExpression<T> implements SpiJunction<T>, SpiExpression, Expression
     return exprList.setDisableReadAuditing();
   }
 
+  @Override
+  public Query<T> setCountDistinct(CountDistinctOrder orderBy) {
+    return exprList.setCountDistinct(orderBy);
+  }
+
   @Override
   public ExpressionList<T> startsWith(String propertyName, String value) {
     return exprList.startsWith(propertyName, value);