GenericDelegate.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.unioninvestment.eai.portal.support.vaadin.container;

import java.util.List;

import com.vaadin.data.Container.Filter;

/**
 * Schnittstelle für Backends die mit dem GenericContainer zusammenarbeiten.
 * 
 * @author carsten.mjartan
 */
public interface GenericDelegate {

	/**
	 * @return Metadaten zu Spalten und Änderungsmöglichkeiten des Backends
	 */
	MetaData getMetaData();

	/**
	 * @return die aktuelle Zeilenliste gemäß Filterkriterien. Die Werte im
	 *         Object-Array müssen den {@link Column}-Definitionen in den
	 *         Metadaten entsprechen
	 */
	List<Object[]> getRows();

	/**
	 * @param filters
	 *            die Filter
	 */
	void setFilters(Filter[] filters);

	/**
	 * @param items
	 *            die beim commit() des Containers zu übernehmenden Änderungen
	 * @param context
	 *            Kontext der Update-Operation. Über diesen lässt sich das
	 *            Verhalten des Containers genauer steuern
	 */
	void update(List<GenericItem> items, UpdateContext context);
}