From 0ff22e97a75015c36a853902c36783cbc491ce56 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timo=20Westk=C3=A4mper?= <timo.westkamper@mysema.com>
Date: Mon, 6 Sep 2010 14:36:38 +0000
Subject: [PATCH] added Nullable annotations

---
 .../java/com/mysema/query/types/Visitor.java  | 23 +++++++++++++------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/querydsl-core/src/main/java/com/mysema/query/types/Visitor.java b/querydsl-core/src/main/java/com/mysema/query/types/Visitor.java
index 918355c1f..0a0f6c4d6 100644
--- a/querydsl-core/src/main/java/com/mysema/query/types/Visitor.java
+++ b/querydsl-core/src/main/java/com/mysema/query/types/Visitor.java
@@ -5,6 +5,8 @@
  */
 package com.mysema.query.types;
 
+import javax.annotation.Nullable;
+
 /**
  * Visitor defines a Visitor signature for {@link Expr} instances.
  *
@@ -16,36 +18,43 @@ public interface Visitor<R,C>{
     /**
      * @param expr
      */
-    R visit(Constant<?> expr, C context);
+    @Nullable
+    R visit(Constant<?> expr, @Nullable C context);
 
     /**
      * @param expr
      */
-    R visit(Custom<?> expr, C context);
+    @Nullable
+    R visit(Custom<?> expr, @Nullable C context);
 
     /**
      * @param expr
      */
-    R visit(FactoryExpression<?> expr, C context);
+    @Nullable
+    R visit(FactoryExpression<?> expr, @Nullable C context);
 
     /**
      * @param expr
      */
-    R visit(Operation<?> expr, C context);
+    @Nullable
+    R visit(Operation<?> expr, @Nullable C context);
 
     /**
      * @param expr
      */
-    R visit(Path<?> expr, C context);
+    @Nullable
+    R visit(Path<?> expr, @Nullable C context);
 
     /**
      * @param expr
      */
-    R visit(SubQueryExpression<?> expr, C context);
+    @Nullable
+    R visit(SubQueryExpression<?> expr, @Nullable C context);
 
     /**
      * @param expr
      */
-    R visit(Param<?> expr, C context);
+    @Nullable
+    R visit(Param<?> expr, @Nullable C context);
 
 }