JAVA-2054: Add readConcern property to DB and DBCollection

Author: jyemin

driver/src/main/com/mongodb/DB.java

@@ -151,23 +151,23 @@ public WriteConcern getWriteConcern() {
      * Sets the read concern for this database.
      *
      * @param readConcern the read concern to use for this collection
-     * @since 3.2
+     * @since 3.3
      * @mongodb.server.release 3.2
      * @mongodb.driver.manual reference/readConcern/ Read Concern
      */
-    void setReadConcern(final ReadConcern readConcern) {
+    public void setReadConcern(final ReadConcern readConcern) {
         this.readConcern = readConcern;
     }
 
     /**
      * Get the read concern for this database.
      *
      * @return the {@link com.mongodb.ReadConcern}
-     * @since 3.2
+     * @since 3.3
      * @mongodb.server.release 3.2
      * @mongodb.driver.manual reference/readConcern/ Read Concern
      */
-    ReadConcern getReadConcern() {
+    public ReadConcern getReadConcern() {
         return readConcern != null ? readConcern : mongo.getReadConcern();
     }
 

driver/src/main/com/mongodb/DBCollection.java

@@ -1886,23 +1886,23 @@ public void setReadPreference(final ReadPreference preference) {
      * Sets the read concern for this collection.
      *
      * @param readConcern the read concern to use for this collection
-     * @since 3.2
+     * @since 3.3
      * @mongodb.server.release 3.2
      * @mongodb.driver.manual reference/readConcern/ Read Concern
      */
-    void setReadConcern(final ReadConcern readConcern) {
+    public void setReadConcern(final ReadConcern readConcern) {
         this.readConcern = readConcern;
     }
 
     /**
      * Get the read concern for this collection.
      *
      * @return the {@link com.mongodb.ReadConcern}
-     * @since 3.2
+     * @since 3.3
      * @mongodb.server.release 3.2
      * @mongodb.driver.manual reference/readConcern/ Read Concern
      */
-    ReadConcern getReadConcern() {
+    public ReadConcern getReadConcern() {
         if (readConcern != null) {
             return readConcern;
         }