X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.utils.datastructures%2Fsrc%2Forg%2Fsimantics%2Futils%2Fdatastructures%2Fcache%2FIProvider.java;fp=bundles%2Forg.simantics.utils.datastructures%2Fsrc%2Forg%2Fsimantics%2Futils%2Fdatastructures%2Fcache%2FIProvider.java;h=77b2b0d2dac0e2de018429a60ae5f28deec197ca;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/IProvider.java b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/cache/IProvider.java
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index 000000000..77b2b0d2d
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@@ -0,0 +1,31 @@
+/*******************************************************************************
+ * 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;
+
+/**
+ * Interface used for lazy initialization.
+ * 
+ * 
+ * @see StaticProvider static provider (provides the same instance always)
+ * @author Toni Kalajainen
+ */
+public interface IProvider<V> {
+
+    /**
+     * Provides a value on demand. 
+     * 
+     * @return the value (may not be null)
+     */
+    V get()
+    throws ProvisionException;
+    
+}
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