X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.utils.datastructures%2Fsrc%2Forg%2Fsimantics%2Futils%2Fdatastructures%2Fcache%2FWeakCachedMapProvider.java;fp=bundles%2Forg.simantics.utils.datastructures%2Fsrc%2Forg%2Fsimantics%2Futils%2Fdatastructures%2Fcache%2FWeakCachedMapProvider.java;h=459e77494f4914b41ad0606ff028cdb1d1b06972;hb=0ae2b770234dfc3cbb18bd38f324125cf0faca07;hp=2aab35c7f350bf5582c33bf4f7435d458073a28d;hpb=24e2b34260f219f0d1644ca7a138894980e25b14;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/WeakCachedMapProvider.java b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/WeakCachedMapProvider.java
index 2aab35c7f..459e77494 100644
--- a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/WeakCachedMapProvider.java
+++ b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/WeakCachedMapProvider.java
@@ -1,76 +1,76 @@
-/*******************************************************************************
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management
- * in Industry THTH ry.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- *     VTT Technical Research Centre of Finland - initial API and implementation
- *******************************************************************************/
-/*
- *
- * @author Toni Kalajainen
- */
-package org.simantics.utils.datastructures.cache;
-
-import java.lang.ref.WeakReference;
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * WeakCachedProvider provides values and stores the results in a cache.
- * Cached values are held with weak references. Values are removed
- * automatically as they are disposed.
- *
- * Keys are referenced with strong references.
- *
- * @param <K> key type
- * @param <V> value type
- */
-public class WeakCachedMapProvider<K, V> implements IMapProvider<K, V> {
-
-	private Map<K, WeakReference<V>> cache = 
-		new HashMap<K, WeakReference<V>>();
-	
-	private final IMapProvider<K, V> provider;
-	
-	/**
-	 * Constructs new weak cache.
-	 * 
-	 * @param provider provider of values 
-	 */
-	public WeakCachedMapProvider(IMapProvider<K, V> provider)
-	{
-		assert(provider!=null);
-		this.provider = provider;
-	}	
-	
-	@Override
-	public synchronized V get(K key) 
-	{
-		WeakReference<V> ref = cache.get(key);
-		if (ref!=null) {
-			V result = ref.get();
-			if (result!=null) return result;
-			cache.remove(ref);
-		}
-		
-		V value = provider.get(key);
-		assert(value!=null);
-		
-		ref = new WeakReference<V>(value);
-		cache.put(key, ref);
-		return value;		
-	}
-	
-	/**
-	 * Release all weak references
-	 */
-	public synchronized void clear()
-	{
-		cache.clear();
-	}	
-
-}
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+/*
+ *
+ * @author Toni Kalajainen
+ */
+package org.simantics.utils.datastructures.cache;
+
+import java.lang.ref.WeakReference;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * WeakCachedProvider provides values and stores the results in a cache.
+ * Cached values are held with weak references. Values are removed
+ * automatically as they are disposed.
+ *
+ * Keys are referenced with strong references.
+ *
+ * @param <K> key type
+ * @param <V> value type
+ */
+public class WeakCachedMapProvider<K, V> implements IMapProvider<K, V> {
+
+	private Map<K, WeakReference<V>> cache = 
+		new HashMap<K, WeakReference<V>>();
+	
+	private final IMapProvider<K, V> provider;
+	
+	/**
+	 * Constructs new weak cache.
+	 * 
+	 * @param provider provider of values 
+	 */
+	public WeakCachedMapProvider(IMapProvider<K, V> provider)
+	{
+		assert(provider!=null);
+		this.provider = provider;
+	}	
+	
+	@Override
+	public synchronized V get(K key) 
+	{
+		WeakReference<V> ref = cache.get(key);
+		if (ref!=null) {
+			V result = ref.get();
+			if (result!=null) return result;
+			cache.remove(ref);
+		}
+		
+		V value = provider.get(key);
+		assert(value!=null);
+		
+		ref = new WeakReference<V>(value);
+		cache.put(key, ref);
+		return value;		
+	}
+	
+	/**
+	 * Release all weak references
+	 */
+	public synchronized void clear()
+	{
+		cache.clear();
+	}	
+
+}