Commit forgotten file

aNNiMON · Mar 22, 2019 · f29fd57 · f29fd57
1 parent f036ec1
commit f29fd57
Showing 1 changed file with 15 additions and 0 deletions.
diff --git a/stream/src/main/java/com/annimon/stream/internal/Params.java b/stream/src/main/java/com/annimon/stream/internal/Params.java
@@ -1,9 +1,24 @@
 package com.annimon.stream.internal;
 
+import org.jetbrains.annotations.NotNull;
+
 /**
  * Parameters for streams.
  */
 public final class Params {
 
     public Runnable closeHandler;
+
+    public static Params wrapWithCloseHandler(Params params, @NotNull Runnable closeHandler) {
+        final Params newParams;
+        if (params == null) {
+            newParams = new Params();
+            newParams.closeHandler = closeHandler;
+        } else {
+            newParams = params;
+            final Runnable firstHandler = newParams.closeHandler;
+            newParams.closeHandler = Compose.runnables(firstHandler, closeHandler);
+        }
+        return newParams;
+    }
 }