Add a 'context' type

This was some example code I found somewhere that seemed interesting.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/main/java/bjc/data/IContext.java b/src/main/java/bjc/data/IContext.java
new file mode 100644
index 0000000..a1073f1
--- /dev/null
+++ b/src/main/java/bjc/data/IContext.java
@@ -0,0 +1,18 @@
+package bjc.data;
+
+public interface IContext {
+	void register(String name, Object o);
+
+	IContext getParent();
+
+	Object get(String name);
+	
+	<T> T get(Class<T> contract);
+	
+	default <T> T get(String name, Class<T> contract) {
+		Object obj = get(name);
+		return obj == null 
+				? getParent().get(name, contract) 
+						: contract.cast(obj);
+	};
+}