From d3cb8b3dbc9869241522b4c881c62657f2fd6e68 Mon Sep 17 00:00:00 2001
From: Uwe Schindler <uschindler@apache.org>
Date: Thu, 20 Aug 2009 22:24:21 +0000
Subject: [PATCH] LUCENE-1831: TokenWrapperAttributeFactory,
 CachingWrapperFilterHelper implements equals and so should also implement
 hashCode

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@806381 13f79535-47bb-0310-9956-ffa450edef68
---
 src/java/org/apache/lucene/analysis/TokenStream.java          | 4 ++++
 .../org/apache/lucene/search/CachingWrapperFilterHelper.java  | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/src/java/org/apache/lucene/analysis/TokenStream.java b/src/java/org/apache/lucene/analysis/TokenStream.java
index 16d7b37a4f7..168fdf44d23 100644
--- a/src/java/org/apache/lucene/analysis/TokenStream.java
+++ b/src/java/org/apache/lucene/analysis/TokenStream.java
@@ -146,6 +146,10 @@ public abstract class TokenStream extends AttributeSource {
       }
       return false;
     }
+    
+    public int hashCode() {
+      return delegate.hashCode() ^ 0x0a45ff31;
+    }
   }
 
   /**
diff --git a/src/test/org/apache/lucene/search/CachingWrapperFilterHelper.java b/src/test/org/apache/lucene/search/CachingWrapperFilterHelper.java
index 7019e79f155..d13f05a2493 100644
--- a/src/test/org/apache/lucene/search/CachingWrapperFilterHelper.java
+++ b/src/test/org/apache/lucene/search/CachingWrapperFilterHelper.java
@@ -77,4 +77,8 @@ public class CachingWrapperFilterHelper extends CachingWrapperFilter {
     if (!(o instanceof CachingWrapperFilterHelper)) return false;
     return this.filter.equals((CachingWrapperFilterHelper)o);
   }
+  
+  public int hashCode() {
+    return this.filter.hashCode() ^ 0x5525aacb;
+  }
 }