| /***************************************************************** |
| * 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 |
| * |
| * https://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.access; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.cayenne.map.DataMap; |
| import org.apache.cayenne.map.DbEntity; |
| import org.apache.cayenne.map.EntityResolver; |
| import org.apache.cayenne.map.ObjEntity; |
| import org.apache.cayenne.map.Procedure; |
| import org.apache.cayenne.query.PrefetchTreeNode; |
| import org.apache.cayenne.query.Query; |
| import org.apache.cayenne.query.QueryCacheStrategy; |
| import org.apache.cayenne.query.QueryMetadata; |
| import org.apache.cayenne.query.QueryRouter; |
| import org.apache.cayenne.query.SQLAction; |
| import org.apache.cayenne.query.SQLActionVisitor; |
| import org.apache.cayenne.reflect.ClassDescriptor; |
| |
| /** |
| * A query that allows DataContext to retrieve parent DataDomain through a chain of |
| * decorator DataChannels. |
| * |
| * @since 3.0 |
| */ |
| class DataDomainQuery implements Query, QueryMetadata { |
| |
| public SQLAction createSQLAction(SQLActionVisitor visitor) { |
| throw new UnsupportedOperationException("Not an executable query."); |
| } |
| |
| public QueryMetadata getMetaData(EntityResolver resolver) { |
| return this; |
| } |
| |
| public List<Object> getResultSetMapping() { |
| return null; |
| } |
| |
| /** |
| * @since 4.0 |
| */ |
| @Override |
| public boolean isSingleResultSetMapping() { |
| return false; |
| } |
| |
| /** |
| * @since 4.0 |
| */ |
| public Query getOriginatingQuery() { |
| return null; |
| } |
| |
| public void route(QueryRouter router, EntityResolver resolver, Query substitutedQuery) { |
| } |
| |
| /** |
| * @since 4.0 |
| */ |
| public String getCacheGroup() { |
| return null; |
| } |
| |
| public String getCacheKey() { |
| return null; |
| } |
| |
| public Map<String, String> getPathSplitAliases() { |
| return null; |
| } |
| |
| public QueryCacheStrategy getCacheStrategy() { |
| return null; |
| } |
| |
| public DataMap getDataMap() { |
| return null; |
| } |
| |
| public DbEntity getDbEntity() { |
| return null; |
| } |
| |
| public int getFetchLimit() { |
| return 0; |
| } |
| |
| public int getFetchOffset() { |
| return 0; |
| } |
| |
| public ObjEntity getObjEntity() { |
| return null; |
| } |
| |
| public ClassDescriptor getClassDescriptor() { |
| return null; |
| } |
| |
| public int getPageSize() { |
| return 0; |
| } |
| |
| public PrefetchTreeNode getPrefetchTree() { |
| return null; |
| } |
| |
| public Procedure getProcedure() { |
| return null; |
| } |
| |
| public boolean isFetchingDataRows() { |
| // must return true, otherwise the stack will attempt DataObject conversion |
| return true; |
| } |
| |
| public boolean isRefreshingObjects() { |
| return false; |
| } |
| |
| public boolean isResolvingInherited() { |
| return false; |
| } |
| |
| public int getStatementFetchSize() { |
| return 0; |
| } |
| |
| @Override |
| public int getQueryTimeout() { |
| return QueryMetadata.QUERY_TIMEOUT_DEFAULT; |
| } |
| |
| @Override |
| public boolean isSuppressingDistinct() { |
| return false; |
| } |
| } |