/******************************************************************************* * 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.olingo.odata2.api.ep.callback; import org.apache.olingo.odata2.api.ODataCallback; import org.apache.olingo.odata2.api.exception.ODataApplicationException; /** * Callback interface for the $expand query option. * <p>If an expand clause for a navigation property which points to an entry is found this callback will be called. * <br>Pointing to an entry means the navigation property has a multiplicity of 0..1 or 1..1. * * * */ public interface OnWriteEntryContent extends ODataCallback { /** * Retrieves the data for an entry. See {@link WriteEntryCallbackContext} for details on the context and * {@link WriteEntryCallbackResult} for details on the result of this method. * @param context of this entry * @return result - must not be null. * @throws ODataApplicationException */ WriteEntryCallbackResult retrieveEntryResult(WriteEntryCallbackContext context) throws ODataApplicationException; }