Index: C:/Naidu/Projects/eclipse/june_policy_workspace/apache/imperius-splcore/src/main/java/org/apache/imperius/spl/datastore/impl/PolicyCache.java
===================================================================
--- C:/Naidu/Projects/eclipse/june_policy_workspace/apache/imperius-splcore/src/main/java/org/apache/imperius/spl/datastore/impl/PolicyCache.java	(revision 669804)
+++ C:/Naidu/Projects/eclipse/june_policy_workspace/apache/imperius-splcore/src/main/java/org/apache/imperius/spl/datastore/impl/PolicyCache.java	(working copy)
@@ -35,7 +35,22 @@
 public class PolicyCache 
 {
 	private Map _policyCache = new Hashtable();
+	private static PolicyCache singletonObj = null;
+
+	private PolicyCache()
+	{
+		
+	}
 	
+	public static synchronized PolicyCache getInstance()
+	{
+		if(singletonObj == null)
+		{
+			singletonObj = new PolicyCache();
+		}
+		return singletonObj;
+	}
+	
 	public boolean policyExists(String policyName)
 	{
 		if (!_policyCache.containsKey(policyName))
@@ -43,26 +58,21 @@
 			return false;
         }
 		return true;
-		
-		
 	}
 	
-	public boolean insertPolicy(String policyName, SPLPolicy policyObject)
+	public synchronized boolean insertPolicy(String policyName, SPLPolicy policyObject)
 	{
 		if (!policyExists(policyName))
         {
-            
             _policyCache.put(policyName,policyObject);
             return true;
-            
         }
         else
         {
         	return false;
-            
         }
-    	
 	}
+	
 	public boolean updatePolicy(String policyName, SPLPolicy policyObject)
 		throws SPLException
 	{
@@ -76,9 +86,9 @@
 		{
 			throw new SPLException("policy does not exist in cache");
 		}
-		
 	}
-	public boolean deletePolicy(String policyName) throws SPLException
+
+	public synchronized boolean deletePolicy(String policyName) throws SPLException
 	{
 		if(policyExists(policyName))
 		{
@@ -89,10 +99,9 @@
 		{
 			return false;
 		}
-		
-		
 	}
-	public SPLPolicy getPolicy(String policyName) throws SPLException
+
+	public synchronized SPLPolicy getPolicy(String policyName) throws SPLException
 	{
 		if(policyExists(policyName))
 		{
@@ -103,9 +112,5 @@
 		{
 			throw new SPLException("policy does not exist in cache");
 		}
-		
 	}
-	
-	
-
 }