X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.utils.datastructures%2Fsrc%2Forg%2Fsimantics%2Futils%2Fdatastructures%2Fcache%2FSoftCachedProvider.java;h=749d1613b3c90311a2578cf81d8c56543f63c3eb;hb=refs%2Fchanges%2F28%2F1728%2F2;hp=0c11f241134d36e98fccc69a98830866b2aa0a76;hpb=969bd23cab98a79ca9101af33334000879fb60c5;p=simantics%2Fplatform.git
diff --git a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/SoftCachedProvider.java b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/SoftCachedProvider.java
index 0c11f2411..749d1613b 100644
--- a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/SoftCachedProvider.java
+++ b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/SoftCachedProvider.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.SoftReference;
-
-/**
- * Caches the value provided by provider until the value has been garbage collected.
- *
- * Cached IProvider provides the same instance as long as it is in memory.
- *
- * Cached version is equal to original in hashCode/equals wise.
- *
- * @author Toni Kalajainen
- */
-public class SoftCachedProvider implements IProvider {
-
- public static final IProvider cache(IProvider provider)
- {
- if (provider instanceof SoftCachedProvider>)
- return provider;
- return new SoftCachedProvider(provider);
- }
-
- IProvider provider;
- SoftReference ref;
-
- SoftCachedProvider(IProvider 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 SoftReference(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.SoftReference;
+
+/**
+ * Caches the value provided by provider until the value has been garbage collected.
+ *
+ * Cached IProvider provides the same instance as long as it is in memory.
+ *
+ * Cached version is equal to original in hashCode/equals wise.
+ *
+ * @author Toni Kalajainen
+ */
+public class SoftCachedProvider implements IProvider {
+
+ public static final IProvider cache(IProvider provider)
+ {
+ if (provider instanceof SoftCachedProvider>)
+ return provider;
+ return new SoftCachedProvider(provider);
+ }
+
+ IProvider provider;
+ SoftReference ref;
+
+ SoftCachedProvider(IProvider 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 SoftReference(x);
+ return x;
+ }
+
+ @Override
+ public int hashCode() {
+ return provider.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ return provider.equals(obj);
+ }
+
+}