/*
    *    Copyright 2016-2025 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
    *
    *       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.mybatis.dynamic.sql.select.join;
  
  import java.util.Objects;
  
  import org.jspecify.annotations.Nullable;
  import org.mybatis.dynamic.sql.TableExpression;
  import org.mybatis.dynamic.sql.common.AbstractBooleanExpressionModel;
  import org.mybatis.dynamic.sql.util.Validator;
  
  public class JoinSpecification extends AbstractBooleanExpressionModel {
  
      private final TableExpression table;
      private final JoinType joinType;
  
      private JoinSpecification(Builder builder) {
          super(builder);
          table = Objects.requireNonNull(builder.table);
          joinType = Objects.requireNonNull(builder.joinType);
          Validator.assertFalse(initialCriterion().isEmpty() && subCriteria().isEmpty(),
                  "ERROR.16"); //$NON-NLS-1$
      }
  
      public TableExpression table() {
          return table;
      }
  
      public JoinType joinType() {
          return joinType;
      }
  
      public static Builder withJoinTable(TableExpression table) {
          return new Builder().withJoinTable(table);
      }
  
      public static class Builder extends AbstractBuilder<Builder> {
          private @Nullable TableExpression table;
          private @Nullable JoinType joinType;
  
          public Builder withJoinTable(TableExpression table) {
              this.table = table;
              return this;
          }
  
          public Builder withJoinType(JoinType joinType) {
              this.joinType = joinType;
              return this;
          }
  
          public JoinSpecification build() {
              return new JoinSpecification(this);
          }
  
          @Override
          protected Builder getThis() {
              return this;
          }
      }
  }