/******************************************************************************* * Copyright 2013 SAP AG * * 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 com.sap.core.odata.api.ep.callback; import com.sap.core.odata.api.ODataCallback; import com.sap.core.odata.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. * * @author SAP AG * */ 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; }