diff -r 6eede6088d41 -r 3f30adba1c63 src/main/kotlin/de/uapcore/lightpit/dao/AbstractChildEntityDao.kt
--- a/src/main/kotlin/de/uapcore/lightpit/dao/AbstractChildEntityDao.kt	Sun Dec 20 11:06:25 2020 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,64 +0,0 @@
-/*
- * Copyright 2020 Mike Becker. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-package de.uapcore.lightpit.dao
-
-
-abstract class AbstractChildEntityDao<T, P> : AbstractDao<T>() {
-
-    /**
-     * Lists all entities being a child of the specified parent.
-     * @param parent the parent
-     * @return the list of child instances
-     */
-    abstract fun list(parent: P): List<T>
-
-    /**
-     * Finds an entity by its integer ID.
-     * It is not guaranteed that referenced entities are automatically joined.
-     *
-     * @param id the id
-     * @return the entity or null if there is no such entity
-     */
-    abstract fun find(id: Int): T?
-
-    /**
-     * Inserts an instance into database.
-     * It is not guaranteed that generated fields will be updated in the instance.
-     *
-     * @param instance the instance to insert
-     * @param parent a reference to the parent
-     */
-    abstract fun save(instance: T, parent: P)
-
-    /**
-     * Updates an instance in the database.
-     *
-     * @param instance the instance to update
-     * @return true if an instance has been updated, false if the instance is not present in database
-     */
-    abstract fun update(instance: T): Boolean
-}