From e642fd72bcf507bb2258c8224e207b55061db08a Mon Sep 17 00:00:00 2001
From: Camil Staps
Date: Mon, 6 Apr 2015 21:41:41 +0200
Subject: initial commit

---
 .../main/java/com/camilstaps/common/Listener.java    | 20 ++++++++++++++++++++
 .../java/com/camilstaps/common/NullListener.java     | 14 ++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100644 app/src/main/java/com/camilstaps/common/Listener.java
 create mode 100644 app/src/main/java/com/camilstaps/common/NullListener.java

(limited to 'app/src/main/java/com/camilstaps/common')

diff --git a/app/src/main/java/com/camilstaps/common/Listener.java b/app/src/main/java/com/camilstaps/common/Listener.java
new file mode 100644
index 0000000..36319c6
--- /dev/null
+++ b/app/src/main/java/com/camilstaps/common/Listener.java
@@ -0,0 +1,20 @@
+package com.camilstaps.common;
+
+/**
+ * Abstract class for something listening for some object
+ * @author Camil Staps
+ */
+public abstract class Listener<T> {
+
+    /**
+     * To be called when the data is successfully retrieved
+     * @param data
+     */
+    public abstract void success(T data);
+
+    /**
+     * To be called when the data could not be retrieved
+     */
+    public abstract void failure();
+
+}
diff --git a/app/src/main/java/com/camilstaps/common/NullListener.java b/app/src/main/java/com/camilstaps/common/NullListener.java
new file mode 100644
index 0000000..c22e76d
--- /dev/null
+++ b/app/src/main/java/com/camilstaps/common/NullListener.java
@@ -0,0 +1,14 @@
+package com.camilstaps.common;
+
+/**
+ * Listener that discards all data and errors.
+ * @author Camil Staps
+ */
+public class NullListener<T> extends Listener<T> {
+
+    @Override
+    public void success(T data) { }
+
+    @Override
+    public void failure() { }
+}
-- 
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