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.expression.conditional;
  
  import java.util.Arrays;
  import java.util.Set;
  import java.util.stream.Collectors;
  
  import org.apache.carbondata.core.scan.expression.Expression;
  import org.apache.carbondata.core.scan.expression.ExpressionResult;
  import org.apache.carbondata.core.scan.filter.intf.ExpressionType;
  import org.apache.carbondata.core.scan.filter.intf.RowIntf;
  
  /**
   * This expression will be added to Index filter when CDC pruning is enabled.
   */
  public class CDCBlockImplicitExpression extends Expression {
  
    Set<String> blocksToScan;
  
    public CDCBlockImplicitExpression(String blockPathValues) {
      blocksToScan =
          Arrays.stream(blockPathValues.split(",")).map(String::trim).collect(Collectors.toSet());
    }
  
    @Override
    public ExpressionResult evaluate(RowIntf value) {
      throw new UnsupportedOperationException("Not allowed on Implicit expression");
    }
  
    @Override
    public ExpressionType getFilterExpressionType() {
      return ExpressionType.IMPLICIT;
    }
  
    @Override
    public void findAndSetChild(Expression oldExpr, Expression newExpr) {
      throw new UnsupportedOperationException("Not allowed on Implicit expression");
    }
  
    @Override
    public String getString() {
      return null;
    }
  
    @Override
    public String getStatement() {
      return null;
    }
  
    public Set<String> getBlocksToScan() {
      return blocksToScan;
    }
  }
  