Java tutorial
/* * Copyright 2015, The Querydsl Team (http://www.querydsl.com/team) * * 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.querydsl.sql.dml; import java.util.Map; import com.google.common.collect.Maps; import com.querydsl.core.types.Path; import com.querydsl.sql.RelationalPath; /** * Abstract base class for Mapper implementations * * @author tiwe * * @param <T> */ public abstract class AbstractMapper<T> implements Mapper<T> { protected Map<String, Path<?>> getColumns(RelationalPath<?> path) { Map<String, Path<?>> columns = Maps.newLinkedHashMap(); for (Path<?> column : path.getColumns()) { columns.put(column.getMetadata().getName(), column); } return columns; } protected boolean isPrimaryKeyColumn(RelationalPath<?> parent, Path<?> property) { return parent.getPrimaryKey() != null && parent.getPrimaryKey().getLocalColumns().contains(property); } }