#1427 - QueryCache should be cleared, if one of a dependent bean is updated

Initial work, does not include propagation across cluster.

src/main/java/io/ebeaninternal/server/query/SqlTreeNodeExtraJoin.java

@@ -11,6 +11,7 @@ import io.ebeaninternal.server.type.ScalarType;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Set;
 
 /**
  * The purpose is to add an extra join to the query.
@@ -100,6 +101,16 @@ class SqlTreeNodeExtraJoin implements SqlTreeNode {
     children.add(child);
   }
 
+  @Override
+  public void dependentTables(Set<String> tables) {
+    tables.add(assocBeanProperty.target().getBaseTable(SpiQuery.TemporalMode.CURRENT));
+    if (children != null) {
+      for (SqlTreeNode child : children) {
+        child.dependentTables(tables);
+      }
+    }
+  }
+
   @Override
   public void appendFrom(DbSqlContext ctx, SqlJoinType joinType) {