X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.utils.datastructures%2Fsrc%2Forg%2Fsimantics%2Futils%2Fdatastructures%2Fcache%2FWeakCachedProvider.java;fp=bundles%2Forg.simantics.utils.datastructures%2Fsrc%2Forg%2Fsimantics%2Futils%2Fdatastructures%2Fcache%2FWeakCachedProvider.java;h=ac844e1541f4d06ef7792d3b9a9a9d892ba5e393;hb=0ae2b770234dfc3cbb18bd38f324125cf0faca07;hp=bc611a69243e6c205715c34e7fdaa9929855a94c;hpb=24e2b34260f219f0d1644ca7a138894980e25b14;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/WeakCachedProvider.java b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/WeakCachedProvider.java
index bc611a692..ac844e154 100644
--- a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/WeakCachedProvider.java
+++ b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/WeakCachedProvider.java
@@ -1,64 +1,64 @@
-/*******************************************************************************
- * 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
- *******************************************************************************/
-package org.simantics.utils.datastructures.cache;
-
-import java.lang.ref.WeakReference;
-
-/**
- * Caches the value provided by provider until the value has been garbage collected.
- * <p>
- * Cached IProvider provides the same instance as long as it is in memory.
- * <p>
- * Cached version is equal to original in hashCode/equals wise.
- * 
- * @author Toni Kalajainen
- */
-public class WeakCachedProvider<V> implements IProvider<V> {
-
-    public static final <V> IProvider<V> cache(IProvider<V> provider)
-    {
-        if (provider instanceof WeakCachedProvider<?>)
-            return provider;
-        return new WeakCachedProvider<V>(provider);
-    }
-
-    IProvider<V> provider;
-    WeakReference<V> ref;
-
-    WeakCachedProvider(IProvider<V> orig)
-    {
-        this.provider = orig;
-    }
-
-    @Override
-    public synchronized V get() throws ProvisionException {
-        if (ref!=null) {
-            V x = ref.get();
-            if (x==null) ref=null;
-            else return x;
-        }
-        V x = provider.get();
-        ref = new WeakReference<V>(x);
-        return x;
-    }
-
-    @Override
-    public int hashCode() {
-        return provider.hashCode();
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        return provider.equals(obj);
-    }
-
-}
+/*******************************************************************************
+ * 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
+ *******************************************************************************/
+package org.simantics.utils.datastructures.cache;
+
+import java.lang.ref.WeakReference;
+
+/**
+ * Caches the value provided by provider until the value has been garbage collected.
+ * <p>
+ * Cached IProvider provides the same instance as long as it is in memory.
+ * <p>
+ * Cached version is equal to original in hashCode/equals wise.
+ * 
+ * @author Toni Kalajainen
+ */
+public class WeakCachedProvider<V> implements IProvider<V> {
+
+    public static final <V> IProvider<V> cache(IProvider<V> provider)
+    {
+        if (provider instanceof WeakCachedProvider<?>)
+            return provider;
+        return new WeakCachedProvider<V>(provider);
+    }
+
+    IProvider<V> provider;
+    WeakReference<V> ref;
+
+    WeakCachedProvider(IProvider<V> orig)
+    {
+        this.provider = orig;
+    }
+
+    @Override
+    public synchronized V get() throws ProvisionException {
+        if (ref!=null) {
+            V x = ref.get();
+            if (x==null) ref=null;
+            else return x;
+        }
+        V x = provider.get();
+        ref = new WeakReference<V>(x);
+        return x;
+    }
+
+    @Override
+    public int hashCode() {
+        return provider.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        return provider.equals(obj);
+    }
+
+}