X-Git-Url: https://feistymeow.org/gitweb/?a=blobdiff_plain;f=kona%2Fsrc%2Forg%2Fgffs%2Fcache%2FRoleBasedCacheNode.java;fp=kona%2Fsrc%2Forg%2Fgffs%2Fcache%2FRoleBasedCacheNode.java;h=5168d14fc804cb064d78e0b8e1216d96ec8eb0a3;hb=13679382916f379ef7fc0cf02693f0186a905835;hp=0000000000000000000000000000000000000000;hpb=909697fd6009240b5bf2643d54b129b06b733953;p=feisty_meow.git

diff --git a/kona/src/org/gffs/cache/RoleBasedCacheNode.java b/kona/src/org/gffs/cache/RoleBasedCacheNode.java
new file mode 100644
index 00000000..5168d14f
--- /dev/null
+++ b/kona/src/org/gffs/cache/RoleBasedCacheNode.java
@@ -0,0 +1,100 @@
+package org.gffs.cache;
+
+/*
+ * Copyright 2006 University of Virginia
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may
+ * obtain a copy of the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions
+ * and limitations under the License.
+ */
+
+import java.util.Date;
+
+class RoleBasedCacheNode<KeyType, DataType>
+{
+	static public final int ROLE_LRU = 0;
+	static public final int ROLE_TIMEOUT = 1;
+	static private final int _NUM_ROLES = 2;
+
+	private Object[] _next;
+	private Object[] _previous;
+
+	private KeyType _key;
+	private DataType _data;
+
+	private Date _invalidationDate;
+
+	public RoleBasedCacheNode(KeyType key, DataType data, Date invalidationDate)
+	{
+		_next = new Object[_NUM_ROLES];
+		_previous = new Object[_NUM_ROLES];
+
+		for (int lcv = 0; lcv < _NUM_ROLES; lcv++) {
+			_next[lcv] = null;
+			_previous[lcv] = null;
+		}
+
+		_key = key;
+		_data = data;
+		_invalidationDate = invalidationDate;
+	}
+
+	public KeyType getKey()
+	{
+		return _key;
+	}
+
+	public DataType getData()
+	{
+		return _data;
+	}
+
+	public Date getInvalidationDate()
+	{
+		return _invalidationDate;
+	}
+
+	public void setInvalidationDate(long millisecondsFromNow)
+	{
+		_invalidationDate = new Date(System.currentTimeMillis() + millisecondsFromNow);
+	}
+
+	@SuppressWarnings("unchecked")
+	public RoleBasedCacheNode<KeyType, DataType> getPrevious(int role)
+	{
+		return RoleBasedCacheNode.class.cast(_previous[role]);
+	}
+
+	@SuppressWarnings("unchecked")
+	public RoleBasedCacheNode<KeyType, DataType> getNext(int role)
+	{
+		return RoleBasedCacheNode.class.cast(_next[role]);
+	}
+
+	public void setPrevious(int role, RoleBasedCacheNode<KeyType, DataType> previous)
+	{
+		_previous[role] = previous;
+	}
+
+	public void setNext(int role, RoleBasedCacheNode<KeyType, DataType> next)
+	{
+		_next[role] = next;
+	}
+
+	public void clearLinks(int role)
+	{
+		_previous[role] = null;
+		_next[role] = null;
+	}
+
+	public void clearLinks()
+	{
+		for (int lcv = 0; lcv < _NUM_ROLES; lcv++)
+			clearLinks(lcv);
+	}
+}
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