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.filter.resolver;
  
  import java.io.Serializable;
  
  import org.apache.carbondata.core.scan.expression.Expression;
  import org.apache.carbondata.core.scan.expression.exception.FilterUnsupportedException;
  import org.apache.carbondata.core.scan.filter.intf.FilterExecutorType;
  import org.apache.carbondata.core.scan.filter.resolver.resolverinfo.DimColumnResolvedFilterInfo;
  import org.apache.carbondata.core.scan.filter.resolver.resolverinfo.MeasureColumnResolvedFilterInfo;
  
  public interface FilterResolverIntf extends Serializable {
  
    /**
     * This API will resolve the filter expression and generates the
     * dictionaries for executing/evaluating the filter expressions in the
     * executor layer.
     *
     * @throws FilterUnsupportedException
     */
    void resolve() throws FilterUnsupportedException;
  
    /**
     * This API will provide the left column filter expression
     * inorder to resolve the left expression filter.
     *
     * @return FilterResolverIntf
     */
    FilterResolverIntf getLeft();
  
    /**
     * API will provide the right column filter expression inorder to resolve
     * the right expression filter.
     *
     * @return FilterResolverIntf
     */
    FilterResolverIntf getRight();
  
    /**
     * API will return the resolved filter instance, this instance will provide
     * the resolved surrogates based on the applied filter
     *
     * @return DimColumnResolvedFilterInfo object
     */
    DimColumnResolvedFilterInfo getDimColResolvedFilterInfo();
  
    /**
     * API will return the resolved filter instance, this instance will provide
     * the resolved surrogates based on the applied filter
     *
     * @return MeasureColumnResolvedFilterInfo object
     */
    MeasureColumnResolvedFilterInfo getMsrColResolvedFilterInfo();
  
    /**
     * API will return the filter executor type which will be used to evaluate
     * the resolved filter while query execution
     *
     * @return FilterExecutorType.
     */
    FilterExecutorType getFilterExecutorType();
  
    Expression getFilterExpression();
  
  }
  