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.statement;
  
  import java.util.Collections;
  import java.util.List;
  import java.util.Objects;
  
  import org.apache.asterix.common.exceptions.CompilationException;
  import org.apache.asterix.lang.common.base.AbstractStatement;
  import org.apache.asterix.lang.common.base.Expression;
  import org.apache.asterix.lang.common.base.IReturningStatement;
  import org.apache.asterix.lang.common.base.Statement;
  import org.apache.asterix.lang.common.visitor.base.ILangVisitor;
  
  public class Query extends AbstractStatement implements IReturningStatement {
      private boolean explain;
      private boolean advise;
      private boolean topLevel = true;
      private Expression body;
      private int varCounter;
  
      public Query() {
          this(false, false);
      }
  
      public Query(boolean explain, boolean advise) {
          this.explain = explain;
          this.advise = advise;
      }
  
      public Query(boolean explain, boolean advise, boolean topLevel, Expression body, int varCounter) {
          this.explain = explain;
          this.advise = advise;
          this.topLevel = topLevel;
          this.body = body;
          this.varCounter = varCounter;
      }
  
      @Override
      public Expression getBody() {
          return body;
      }
  
      @Override
      public void setBody(Expression body) {
          this.body = body;
      }
  
      @Override
      public int getVarCounter() {
          return varCounter;
      }
  
      @Override
      public void setVarCounter(int varCounter) {
          this.varCounter = varCounter;
      }
  
      @Override
      public List<Expression> getDirectlyEnclosedExpressions() {
          return Collections.singletonList(body);
      }
  
      public void setTopLevel(boolean topLevel) {
          this.topLevel = topLevel;
      }
  
      @Override
      public boolean isTopLevel() {
          return topLevel;
      }
  
      public void setExplain(boolean explain) {
          this.explain = explain;
      }
  
      public void setAdvise(boolean advise) {
          this.advise = advise;
      }
  
      public boolean isExplain() {
          return explain;
      }
  
      public boolean isAdvise() {
          return advise;
      }
  
      @Override
      public Kind getKind() {
          return Statement.Kind.QUERY;
      }
  
      @Override
      public <R, T> R accept(ILangVisitor<R, T> visitor, T arg) throws CompilationException {
          return visitor.visit(this, arg);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(body, topLevel, explain, advise, varCounter);
      }
  
      @Override
      public boolean equals(Object object) {
          if (this == object) {
              return true;
          }
          if (!(object instanceof Query)) {
              return false;
          }
          Query target = (Query) object;
          return explain == target.explain && Objects.equals(body, target.body) && topLevel == target.topLevel
                  && varCounter == target.varCounter && advise == target.advise;
      }
  
      @Override
      public byte getCategory() {
          return Category.QUERY;
      }
  
      @Override
      public String toString() {
          return body.toString();
      }
  }
  