From 132c5fd8990042df836491c20b53fa55ee25f96b Mon Sep 17 00:00:00 2001
From: Mark Harwood <mharwood@apache.org>
Date: Fri, 25 May 2007 23:23:07 +0000
Subject: [PATCH] Added equals/hashcode implementations to enable caching

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@541816 13f79535-47bb-0310-9956-ffa450edef68
---
 .../org/apache/lucene/search/TermsFilter.java | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/contrib/queries/src/java/org/apache/lucene/search/TermsFilter.java b/contrib/queries/src/java/org/apache/lucene/search/TermsFilter.java
index 454af991ad7..a2c15469969 100644
--- a/contrib/queries/src/java/org/apache/lucene/search/TermsFilter.java
+++ b/contrib/queries/src/java/org/apache/lucene/search/TermsFilter.java
@@ -48,4 +48,27 @@ public class TermsFilter extends Filter
 		}
 		return result;
 	}
+	
+	public boolean equals(Object obj)
+	{
+		if(this == obj)
+			return true;
+		if((obj == null) || (obj.getClass() != this.getClass()))
+				return false;
+		TermsFilter test = (TermsFilter)obj;
+		return (termsList == test.termsList|| 
+					 (termsList!= null && termsList.equals(test.termsList)));
+	}
+
+	public int hashCode()
+	{
+		int hash=9;
+		for (Iterator iter = termsList.iterator(); iter.hasNext();)
+		{
+			Term term = (Term) iter.next();
+			hash = 31 * hash + term.hashCode();			
+		}
+		return hash;
+	}
+	
 }