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 org.apache.carbondata.core.scan.model;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.carbondata.core.constants.CarbonCommonConstants;
  import org.apache.carbondata.core.metadata.schema.table.column.CarbonDimension;
  import org.apache.carbondata.core.metadata.schema.table.column.CarbonMeasure;
  
  /**
   * Contains projection columns in the query
   */
  public class QueryProjection {
  
    /**
     * List of dimensions.
     * Ex : select employee_name,department_name,sum(salary) from employee, then employee_name
     * and department_name are dimensions
     * If there is no dimensions asked in query then it would be remained as empty.
     */
    private List<ProjectionDimension> dimensions =
        new ArrayList<ProjectionDimension>(CarbonCommonConstants.CONSTANT_SIZE_TEN);
  
    /**
     * List of measures.
     * Ex : select employee_name,department_name,sum(salary) from employee, then sum(salary)
     * would be measure.
     * If there is no dimensions asked in query then it would be remained as empty.
     */
    private List<ProjectionMeasure> measures =
        new ArrayList<ProjectionMeasure>(CarbonCommonConstants.CONSTANT_SIZE_TEN);
    /**
     * Constructor created with database name and table name.
     *
     */
    public QueryProjection() {
    }
  
    /**
     * @return the dimensions
     */
    public List<ProjectionDimension> getDimensions() {
      return dimensions;
    }
  
    public void addDimension(CarbonDimension dimension, int queryOrdinal) {
      ProjectionDimension queryDimension = new ProjectionDimension(dimension);
      queryDimension.setOrdinal(queryOrdinal);
      this.dimensions.add(queryDimension);
    }
  
    /**
     * @return the measures
     */
    public List<ProjectionMeasure> getMeasures() {
      return measures;
    }
  
    public void addMeasure(CarbonMeasure measure, int queryOrdinal) {
      ProjectionMeasure queryMeasure = new ProjectionMeasure(measure);
      queryMeasure.setOrdinal(queryOrdinal);
      this.measures.add(queryMeasure);
    }
  
  }
  