From 127f3ab9bfb1c9cab75d8a80477b88ef4bc09fb1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jyri-Matti=20La=CC=88hteenma=CC=88ki?=
 <jyri-matti.lahteenmaki@solita.fi>
Date: Mon, 15 Apr 2024 13:04:06 +0300
Subject: [PATCH] FunctionalM.findBy

---
 pom.xml                                                   | 2 +-
 src/main/java/fi/solita/utils/functional/FunctionalM.java | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/pom.xml b/pom.xml
index db39118..e683fd4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2,7 +2,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>fi.solita.utils</groupId>
     <artifactId>functional-utils</artifactId>
-    <version>0.12.49</version>
+    <version>0.12.50</version>
     <build>
         <resources>
                 <resource>
diff --git a/src/main/java/fi/solita/utils/functional/FunctionalM.java b/src/main/java/fi/solita/utils/functional/FunctionalM.java
index d579eb7..ededc6d 100644
--- a/src/main/java/fi/solita/utils/functional/FunctionalM.java
+++ b/src/main/java/fi/solita/utils/functional/FunctionalM.java
@@ -24,6 +24,13 @@ public static final <K, V> Option<V> find(K key, Map<? super K, V> map) {
         return FunctionalImpl.find(key, map);
     }
     
+    /**
+     * @return values in {@code map} whose keys satisfy {@code predicate}.
+     */
+    public static final <K, V> Iterable<V> findBy(Apply<? super K, Boolean> predicate, Map<K, V> map) {
+        return FunctionalImpl.map(Transformers.<V>right(), FunctionalImpl.filter(Transformers.<K>left().andThen(predicate), map.entrySet()));
+    }
+    
     /**
      * @return elements in {@code map} whose entries satisfy {@code predicate}.
      */