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.algebra.base;
  
  import java.util.Map;
  
  import org.apache.asterix.lang.common.struct.VarIdentifier;
  import org.apache.asterix.metadata.declared.MetadataProvider;
  import org.apache.asterix.om.base.IAObject;
  import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
  
  public interface ILangExpressionToPlanTranslatorFactory {
  
      /**
       * @param metadataProvider,
       *            providing the definition of created (i.e., stored) user-defined functions.
       * @param currentVarCounter,
       *            the current minimum available variable id.
       * @param externalVars
       * @return a logical query plan.
       * @throws AlgebricksException
       */
      ILangExpressionToPlanTranslator createExpressionToPlanTranslator(MetadataProvider metadataProvider,
              int currentVarCounter, Map<VarIdentifier, IAObject> externalVars) throws AlgebricksException;
  
  }
  