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.lang.common.visitor.base;
  
  import org.apache.asterix.common.exceptions.CompilationException;
  import org.apache.asterix.lang.common.clause.UpdateClause;
  import org.apache.asterix.lang.common.expression.OrderedListTypeDefinition;
  import org.apache.asterix.lang.common.expression.RecordTypeDefinition;
  import org.apache.asterix.lang.common.expression.TypeReferenceExpression;
  import org.apache.asterix.lang.common.expression.UnorderedListTypeDefinition;
  import org.apache.asterix.lang.common.statement.AdapterDropStatement;
  import org.apache.asterix.lang.common.statement.AnalyzeDropStatement;
  import org.apache.asterix.lang.common.statement.AnalyzeStatement;
  import org.apache.asterix.lang.common.statement.CompactStatement;
  import org.apache.asterix.lang.common.statement.ConnectFeedStatement;
  import org.apache.asterix.lang.common.statement.CopyFromStatement;
  import org.apache.asterix.lang.common.statement.CopyToStatement;
  import org.apache.asterix.lang.common.statement.CreateAdapterStatement;
  import org.apache.asterix.lang.common.statement.CreateDatabaseStatement;
  import org.apache.asterix.lang.common.statement.CreateDataverseStatement;
  import org.apache.asterix.lang.common.statement.CreateFeedPolicyStatement;
  import org.apache.asterix.lang.common.statement.CreateFeedStatement;
  import org.apache.asterix.lang.common.statement.CreateFullTextConfigStatement;
  import org.apache.asterix.lang.common.statement.CreateFullTextFilterStatement;
  import org.apache.asterix.lang.common.statement.CreateFunctionStatement;
  import org.apache.asterix.lang.common.statement.CreateIndexStatement;
  import org.apache.asterix.lang.common.statement.CreateLibraryStatement;
  import org.apache.asterix.lang.common.statement.CreateSynonymStatement;
  import org.apache.asterix.lang.common.statement.CreateViewStatement;
  import org.apache.asterix.lang.common.statement.DatabaseDropStatement;
  import org.apache.asterix.lang.common.statement.DatasetDecl;
  import org.apache.asterix.lang.common.statement.DataverseDecl;
  import org.apache.asterix.lang.common.statement.DataverseDropStatement;
  import org.apache.asterix.lang.common.statement.DeleteStatement;
  import org.apache.asterix.lang.common.statement.DisconnectFeedStatement;
  import org.apache.asterix.lang.common.statement.DropDatasetStatement;
  import org.apache.asterix.lang.common.statement.FeedDropStatement;
  import org.apache.asterix.lang.common.statement.FeedPolicyDropStatement;
  import org.apache.asterix.lang.common.statement.FullTextConfigDropStatement;
  import org.apache.asterix.lang.common.statement.FullTextFilterDropStatement;
  import org.apache.asterix.lang.common.statement.FunctionDecl;
  import org.apache.asterix.lang.common.statement.FunctionDropStatement;
  import org.apache.asterix.lang.common.statement.IndexDropStatement;
  import org.apache.asterix.lang.common.statement.InsertStatement;
  import org.apache.asterix.lang.common.statement.LibraryDropStatement;
  import org.apache.asterix.lang.common.statement.LoadStatement;
  import org.apache.asterix.lang.common.statement.NodeGroupDropStatement;
  import org.apache.asterix.lang.common.statement.NodegroupDecl;
  import org.apache.asterix.lang.common.statement.Query;
  import org.apache.asterix.lang.common.statement.SetStatement;
  import org.apache.asterix.lang.common.statement.StartFeedStatement;
  import org.apache.asterix.lang.common.statement.StopFeedStatement;
  import org.apache.asterix.lang.common.statement.SynonymDropStatement;
  import org.apache.asterix.lang.common.statement.TruncateDatasetStatement;
  import org.apache.asterix.lang.common.statement.TypeDecl;
  import org.apache.asterix.lang.common.statement.TypeDropStatement;
  import org.apache.asterix.lang.common.statement.UpdateStatement;
  import org.apache.asterix.lang.common.statement.ViewDecl;
  import org.apache.asterix.lang.common.statement.ViewDropStatement;
  import org.apache.asterix.lang.common.statement.catalog.CatalogCreateStatement;
  import org.apache.asterix.lang.common.statement.catalog.CatalogDropStatement;
  
  public abstract class AbstractQueryExpressionVisitor<R, T> implements ILangVisitor<R, T> {
  
      @Override
      public R visit(Query q, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(FunctionDecl fd, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CreateIndexStatement cis, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(DataverseDecl dv, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(DeleteStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(DropDatasetStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(TruncateDatasetStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(DatasetDecl dd, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(InsertStatement insert, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(LoadStatement stmtLoad, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CopyFromStatement stmtCopy, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CopyToStatement stmtCopy, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(NodegroupDecl ngd, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(OrderedListTypeDefinition olte, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(RecordTypeDefinition tre, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(SetStatement ss, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(TypeDecl td, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(TypeReferenceExpression tre, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(UnorderedListTypeDefinition ulte, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(UpdateClause del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(UpdateStatement update, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CreateDatabaseStatement cds, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CreateDataverseStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(IndexDropStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(NodeGroupDropStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(DatabaseDropStatement dds, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(DataverseDropStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(TypeDropStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CreateFullTextFilterStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(FullTextFilterDropStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CreateFullTextConfigStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(FullTextConfigDropStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(DisconnectFeedStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CreateFunctionStatement cfs, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(FunctionDropStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CreateAdapterStatement cfs, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(AdapterDropStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CreateFeedStatement cfs, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(StartFeedStatement sfs, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(StopFeedStatement sfs, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(ConnectFeedStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(FeedDropStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(AnalyzeStatement as, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(AnalyzeDropStatement as, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CompactStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CreateFeedPolicyStatement cfps, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(FeedPolicyDropStatement dfs, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CreateSynonymStatement css, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(SynonymDropStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CreateLibraryStatement cls, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(LibraryDropStatement del, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CreateViewStatement cvs, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(ViewDropStatement vds, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(ViewDecl vd, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CatalogCreateStatement ccs, T arg) throws CompilationException {
          return null;
      }
  
      @Override
      public R visit(CatalogDropStatement del, T arg) throws CompilationException {
          return null;
      }
  }
  