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.asterix.external.input.filter;
  
  import org.apache.asterix.om.types.ATypeTag;
  import org.apache.asterix.om.types.IAType;
  import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
  import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
  import org.apache.hyracks.api.context.IEvaluatorContext;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  
  public class ExternalFilterValueEvaluatorFactory implements IScalarEvaluatorFactory {
      private static final long serialVersionUID = 6651915525106158386L;
      private final int index;
      private final ATypeTag typeTag;
  
      public ExternalFilterValueEvaluatorFactory(int index, IAType type) {
          this.index = index;
          this.typeTag = type.getTypeTag();
      }
  
      @Override
      public IScalarEvaluator createScalarEvaluator(IEvaluatorContext ctx) throws HyracksDataException {
          FilterEvaluatorContext filterContext = (FilterEvaluatorContext) ctx;
          return filterContext.createEvaluator(index, typeTag);
      }
  }
  