Java tutorial
/***************************************************************** * 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.dbsync.merge.builders; import org.apache.cayenne.map.DbAttribute; import org.apache.cayenne.map.DbEntity; import org.apache.commons.lang.StringUtils; /** * @since 4.0. */ public class DbEntityBuilder extends DefaultBuilder<DbEntity> { public DbEntityBuilder() { super(new DbEntity()); } public DbEntityBuilder name() { return name(getRandomJavaName()); } public DbEntityBuilder name(String name) { obj.setName(name); return this; } public DbEntityBuilder attributes(DbAttribute... attributes) { for (DbAttribute attribute : attributes) { obj.addAttribute(attribute); } return this; } public DbEntityBuilder attributes(DbAttributeBuilder... attributes) { for (DbAttributeBuilder attribute : attributes) { obj.addAttribute(attribute.build()); } return this; } public DbEntityBuilder attributes(int numberUpTo) { for (int i = 0; i < numberUpTo; i++) { try { obj.addAttribute(new DbAttributeBuilder().random()); } catch (IllegalArgumentException e) { i--; // try again } } return this; } @Override public DbEntity build() { if (obj.getName() == null) { obj.setName(StringUtils.capitalize(getRandomJavaName())); } return obj; } @Override public DbEntity random() { if (dataFactory.chance(99)) { attributes(dataFactory.getNumberUpTo(20)); } return build(); } }