From 9b9e94c81a092a071b4f4f8dc2c03a51c8ce5226 Mon Sep 17 00:00:00 2001
From: maryo42 <starwarsBB42>
Date: Thu, 28 Mar 2019 14:13:11 +0100
Subject: [PATCH] Exists method for check if Any object is empty

---
 src/main/java/com/jsoniter/any/Any.java          |  4 ++++
 .../java/com/jsoniter/any/TestNotFoundAny.java   | 16 ++++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 src/test/java/com/jsoniter/any/TestNotFoundAny.java

diff --git a/src/main/java/com/jsoniter/any/Any.java b/src/main/java/com/jsoniter/any/Any.java
index 8159f1c2..506a29e8 100644
--- a/src/main/java/com/jsoniter/any/Any.java
+++ b/src/main/java/com/jsoniter/any/Any.java
@@ -202,6 +202,10 @@ public Any mustBeValid() {
         }
     }
 
+    public boolean exists() {
+        return !(this instanceof NotFoundAny);
+    }
+
     public Set keys() {
         return EMPTY_KEYS;
     }
diff --git a/src/test/java/com/jsoniter/any/TestNotFoundAny.java b/src/test/java/com/jsoniter/any/TestNotFoundAny.java
new file mode 100644
index 00000000..b4ed7516
--- /dev/null
+++ b/src/test/java/com/jsoniter/any/TestNotFoundAny.java
@@ -0,0 +1,16 @@
+package com.jsoniter.any;
+
+import com.jsoniter.JsonIterator;
+import junit.framework.TestCase;
+
+public class TestNotFoundAny extends TestCase {
+
+    public void test_exists() {
+        Any any = JsonIterator.deserialize("{\"field\": \"ABC\"}");
+        Any field = any.get("field");
+        Any otherField = any.get("otherField");
+        assertTrue(field.exists());
+        assertFalse(otherField.exists());
+    }
+
+}