1 files changed, 85 insertions, 0 deletions
diff --git a/plugins/org.eclipse.osee.framework.jdk.core/src/org/eclipse/osee/framework/jdk/core/type/ResultSetList.java b/plugins/org.eclipse.osee.framework.jdk.core/src/org/eclipse/osee/framework/jdk/core/type/ResultSetList.java
new file mode 100644
index 00000000000..975ed1c2586
--- /dev/null
+++ b/plugins/org.eclipse.osee.framework.jdk.core/src/org/eclipse/osee/framework/jdk/core/type/ResultSetList.java
@@ -0,0 +1,85 @@
+/*******************************************************************************
+ * Copyright (c) 2004, 2007 Boeing.
+ * 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:
+ *     Boeing - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.osee.framework.jdk.core.type;
+
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+
+/**
+ * @author Roberto E. Escobar
+ */
+public class ResultSetList<T> implements ResultSet<T> {
+
+   private final List<T> data;
+
+   protected ResultSetList() {
+      super();
+      this.data = Collections.emptyList();
+   }
+
+   protected ResultSetList(List<T> data) {
+      super();
+      this.data = data;
+   }
+
+   @Override
+   public T getOneOrNull() {
+      List<T> result = getList();
+      return result.isEmpty() ? null : result.iterator().next();
+   }
+
+   @Override
+   public T getAtMostOneOrNull() throws OseeCoreException {
+      List<T> result = getList();
+      if (result.size() > 1) {
+         throw createManyExistException(result.size());
+      }
+      return result.isEmpty() ? null : result.iterator().next();
+   }
+
+   @Override
+   public T getExactlyOne() throws OseeCoreException {
+      T result = getAtMostOneOrNull();
+      if (result == null) {
+         throw createDoesNotExistException();
+      }
+      return result;
+   }
+
+   private List<T> getList() {
+      return data;
+   }
+
+   @Override
+   public Iterator<T> iterator() {
+      return getList().iterator();
+   }
+
+   protected OseeCoreException createManyExistException(int count) {
+      return new MultipleItemsExist("Multiple items found - total [%s]", count);
+   }
+
+   protected OseeCoreException createDoesNotExistException() {
+      return new ItemDoesNotExist("No item found");
+   }
+
+   @Override
+   public int size() {
+      return data.size();
+   }
+
+   @Override
+   public boolean isEmpty() {
+      return data.isEmpty();
+   }
+
+}