JAVA-2793 : add method for wildcard text index

Author: fhassak

docs/reference/content/builders/indexes.md

@@ -77,6 +77,12 @@ This example specifies a text index key for the `description` field:
 text("description")
 ```
 
+This example specifies a text index key for every field that contains string data:
+
+```java
+text()
+```
+
 ### Hashed Index
 
 To specify a [hashed]({{< docsref "core/index-hashed" >}}) index key, use the `hashed` method.

driver-core/src/main/com/mongodb/client/model/Indexes.java

@@ -158,6 +158,16 @@ public static Bson text(final String fieldName) {
         return new BsonDocument(fieldName, new BsonString("text"));
     }
 
+    /**
+     * Create an index key for a text index on every field that contains string data.
+     *
+     * @return the index specification
+     * @mongodb.driver.manual core/text text index
+     */
+    public static Bson text() {
+        return text("$**");
+    }
+
     /**
      * Create an index key for a hashed index on the given field.
      *

driver-core/src/test/functional/com/mongodb/client/model/IndexesFunctionalSpecification.groovy

@@ -114,6 +114,14 @@ class IndexesFunctionalSpecification extends OperationFunctionalSpecification {
         getCollectionHelper().listIndexes()*.get('key').contains(parse('{_fts: "text", _ftsx: 1}'))
     }
 
+    def 'text wildcard'() {
+        when:
+        getCollectionHelper().createIndex(text())
+
+        then:
+        getCollectionHelper().listIndexes()*.get('key').contains(parse('{_fts: "text", _ftsx: 1}'))
+    }
+
     def 'hashed'() {
         when:
         getCollectionHelper().createIndex(hashed('x'))

driver-core/src/test/unit/com/mongodb/client/model/IndexesSpecification.groovy

@@ -69,7 +69,8 @@ class IndexesSpecification extends Specification {
 
     def 'text'() {
         expect:
-        toBson(text('x',)) == parse('{x : "text"}')
+        toBson(text('x')) == parse('{x : "text"}')
+        toBson(text()) == parse('{ "$**" : "text"}')
     }
 
     def 'hashed'() {