Docsp 26803 adding wildcard code example (#405)

* DOCSP-22622 Changed default visibility for code blocs so they are hidden

* DOCSP-26803 - Add wildcard code example.

* autobuilder

---------

Co-authored-by: Caitlin Davey <[email protected]>

Author: caitlindavey

source/fundamentals/indexes.txt

@@ -396,6 +396,25 @@ For more information, see the :manual:`Unique Indexes</core/index-unique>` page
 
 .. driver-content-end
 
+Wildcard Indexes
+~~~~~~~~~~~~~~~~
+
+.. _wildcard-indexes:
+
+Wildcard indexes enable queries against unknown or arbitrary fields. 
+These indexes can be beneficial if you are using a dynamic schema.
+
+The following example creates an ascending wildcard index on all 
+values of the ``location`` field, including values nested in subdocuments and arrays:
+
+.. literalinclude:: /includes/fundamentals/code-snippets/IndexPage.java
+   :language: java
+   :dedent:
+   :start-after: begin wildcard index
+   :end-before: end wildcard index
+
+For more information, see the :manual:`Wildcard Indexes</core/index-wildcard>` page in the {+mdb-server+} manual.
+
 .. _java-clustered-indexes:
 
 Clustered Indexes

source/includes/fundamentals/code-snippets/IndexPage.java

@@ -156,4 +156,13 @@ private void uniqueIndex() {
         }
         // end unique index
     }
+    private void wildcardIndex() {
+        System.out.println("wildcard index");
+        collection = database.getCollection("theaters");
+
+        // begin wildcard index
+        String resultCreateIndex = collection.createIndex(Indexes.ascending("location.$**")); 
+        System.out.println(String.format("Index created: %s", resultCreateIndex));
+        // end wildcard index
+    }
 }