Revert "Revert "[SEARCH-1445] Added ThrowingFunction utility class.""

This reverts commit 7037eb2

search-services/alfresco-search/src/main/java/org/alfresco/solr/utils/ThrowingFunction.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2005-2019 Alfresco Software Limited.
+ *
+ * This file is part of Alfresco
+ *
+ * Alfresco is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Alfresco is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.alfresco.solr.utils;
+
+/**
+ * @author elia
+ *
+ * Class used to use a lambda throwing a catched exceptino
+ *
+ * @param <T> the type of the input to the function
+ * @param <R> the type of the result of the function
+ *
+ */
+@FunctionalInterface
+public interface ThrowingFunction<T, R, E extends Throwable> {
+    R apply(T t) throws E;
+}
+