content: /*
   * 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 com.datastax.oss.driver.internal.querybuilder.relation;
  
  import com.datastax.oss.driver.api.core.CqlIdentifier;
  import com.datastax.oss.driver.api.querybuilder.relation.ColumnRelationBuilder;
  import com.datastax.oss.driver.api.querybuilder.relation.OngoingWhereClause;
  import com.datastax.oss.driver.api.querybuilder.relation.Relation;
  import com.datastax.oss.driver.api.querybuilder.term.Term;
  import com.datastax.oss.driver.internal.querybuilder.lhs.ColumnLeftOperand;
  import com.datastax.oss.driver.shaded.guava.common.base.Preconditions;
  import edu.umd.cs.findbugs.annotations.NonNull;
  import edu.umd.cs.findbugs.annotations.Nullable;
  import net.jcip.annotations.Immutable;
  
  @Immutable
  public class DefaultColumnRelationBuilder implements ColumnRelationBuilder<Relation> {
  
    private final CqlIdentifier columnId;
  
    public DefaultColumnRelationBuilder(@NonNull CqlIdentifier columnId) {
      Preconditions.checkNotNull(columnId);
      this.columnId = columnId;
    }
  
    @NonNull
    @Override
    public Relation build(@NonNull String operator, @Nullable Term rightOperand) {
      return new DefaultRelation(new ColumnLeftOperand(columnId), operator, rightOperand);
    }
  
    @Immutable
    public static class Fluent<StatementT extends OngoingWhereClause<StatementT>>
        implements ColumnRelationBuilder<StatementT> {
  
      private final OngoingWhereClause<StatementT> statement;
      private final ColumnRelationBuilder<Relation> delegate;
  
      public Fluent(
          @NonNull OngoingWhereClause<StatementT> statement, @NonNull CqlIdentifier columnId) {
        this.statement = statement;
        this.delegate = new DefaultColumnRelationBuilder(columnId);
      }
  
      @NonNull
      @Override
      public StatementT build(@NonNull String operator, @Nullable Term rightOperand) {
        return statement.where(delegate.build(operator, rightOperand));
      }
    }
  }
  