/***************************************************************** * 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 org.apache.cayenne; import java.util.List; /** * Represents a single item in a multipart query execution. Can be either an * update count or a list of objects. * * @since 4.0 */ public interface QueryResultItem<T> { /** * Returns true if encapsulated result is a select result. */ boolean isSelectResult(); /** * Returns true if encapsulated result is a batch update result. */ boolean isBatchUpdate(); /** * Returns a list of selected objects. Throws unless * {@link #isSelectResult()} returns true. */ List<T> getSelectResult(); /** * Returns an update count. */ int getUpdateCount(); /** * Returns batch update result in a form of array of individual update counts. */ int[] getBatchUpdateCounts(); }