From ceb1bf116bf610762ebd57a62fb06dae3656aebe Mon Sep 17 00:00:00 2001
From: Julien Viet <julien@julienviet.com>
Date: Wed, 2 Oct 2019 22:24:37 +0200
Subject: [PATCH] Provide the Future#flatMap method as alias of Future#compose
 method - closes #3145

---
 src/main/java/io/vertx/core/Future.java | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/main/java/io/vertx/core/Future.java b/src/main/java/io/vertx/core/Future.java
index 3bdea6321..adc4dd6aa 100644
--- a/src/main/java/io/vertx/core/Future.java
+++ b/src/main/java/io/vertx/core/Future.java
@@ -150,6 +150,13 @@ public interface Future<T> extends AsyncResult<T> {
   @Override
   boolean failed();
 
+  /**
+   * Alias for {@link #compose(Function)}.
+   */
+  default <U> Future<U> flatMap(Function<T, Future<U>> mapper) {
+    return compose(mapper);
+  }
+
   /**
    * Compose this future with a {@code mapper} function.<p>
    *