content: /*
   * Copyright (C) 2020 ActiveJ LLC.
   *
   * 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 io.activej.cube.measure;
  
  import io.activej.codegen.expression.Expression;
  import io.activej.cube.aggregation.measure.Measure;
  
  import java.util.Map;
  import java.util.Set;
  
  public interface ComputedMeasure {
  	Class<?> getType(Map<String, Measure> storedMeasures);
  
  	Expression getExpression(Expression record, Map<String, Measure> storedMeasures);
  
  	Set<String> getMeasureDependencies();
  
  	@Override
  	boolean equals(Object o);
  
  	@Override
  	int hashCode();
  
  }
  