~~~ /** * Copyright 2009-2015 the original author or authors. * * 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 org.apache.ibatis.mapping; import java.util.Collections; import java.util.Map; import org.apache.ibatis.session.Configuration; /** * @author Clinton Begin */ public class Discriminator { private ResultMapping resultMapping; private Map<String, String> discriminatorMap; Discriminator() { } public static class Builder { private Discriminator discriminator = new Discriminator(); public Builder(Configuration configuration, ResultMapping resultMapping, Map<String, String> discriminatorMap) { discriminator.resultMapping = resultMapping; discriminator.discriminatorMap = discriminatorMap; } public Discriminator build() { assert discriminator.resultMapping != null; assert discriminator.discriminatorMap != null; assert !discriminator.discriminatorMap.isEmpty(); //lock down map discriminator.discriminatorMap = Collections.unmodifiableMap(discriminator.discriminatorMap); return discriminator; } } public ResultMapping getResultMapping() { return resultMapping; } public Map<String, String> getDiscriminatorMap() { return discriminatorMap; } public String getMapIdFor(String s) { return discriminatorMap.get(s); } } ~~~