Added new PagedList with tests

tagyCore/src/main/java/de/sg_o/lib/tagy/util/ChunkGetter.java

@@ -0,0 +1,26 @@
+/*
+ *
+ *      Copyright (C) 2023 Joerg Bayer (SG-O)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package de.sg_o.lib.tagy.util;
+
+import java.util.List;
+
+public interface ChunkGetter<T> {
+    List<T> getChunk(int length, int offset);
+
+    int getTotal();
+}

tagyCore/src/main/java/de/sg_o/lib/tagy/util/ListUpdateCompleteListener.java

@@ -0,0 +1,30 @@
+/*
+ *
+ *      Copyright (C) 2023 Joerg Bayer (SG-O)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package de.sg_o.lib.tagy.util;
+
+public interface ListUpdateCompleteListener<T> {
+
+    /**
+     * Called when the list has been updated.
+     *
+     * @param pagedList the updated list
+     * @param minIndex  the index of the first loaded element in the updated list (inclusive)
+     * @param maxIndex  the index of the last loaded element in the updated list (exclusive)
+     */
+    void onListUpdateComplete(PagedList<T> pagedList, int minIndex, int maxIndex);
+}