content: /*
   * Copyright 1999-2017 Alibaba Group Holding Ltd.
   *
   * Licensed 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 com.alibaba.druid.sql.ast;
  
  import com.alibaba.druid.DbType;
  import com.alibaba.druid.sql.SQLUtils;
  import com.alibaba.druid.sql.visitor.ParameterizedOutputVisitorUtils;
  import com.alibaba.druid.sql.visitor.SQLASTVisitor;
  import com.alibaba.druid.sql.visitor.VisitorFeature;
  
  import java.util.List;
  
  public abstract class SQLStatementImpl extends SQLObjectImpl implements SQLStatement {
      protected DbType dbType;
      protected boolean afterSemi;
      protected List<SQLCommentHint> headHints;
  
      public SQLStatementImpl() {
      }
  
      public SQLStatementImpl(DbType dbType) {
          this.dbType = dbType;
      }
  
      public DbType getDbType() {
          return dbType;
      }
  
      public void setDbType(DbType dbType) {
          this.dbType = dbType;
      }
  
      public String toString() {
          return SQLUtils.toSQLString(this, dbType);
      }
  
      public String toString(VisitorFeature... features) {
          return SQLUtils.toSQLString(this, dbType, null, features);
      }
  
      public String toLowerCaseString() {
          return SQLUtils.toSQLString(this, dbType, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION);
      }
  
      public String toUnformattedString() {
          return SQLUtils.toSQLString(this, dbType, new SQLUtils.FormatOption(true, false));
      }
  
      public String toParameterizedString() {
          return ParameterizedOutputVisitorUtils.parameterize(this, dbType);
      }
  
      @Override
      protected void accept0(SQLASTVisitor v) {
          throw new UnsupportedOperationException(this.getClass().getName());
      }
  
      public List<SQLObject> getChildren() {
          throw new UnsupportedOperationException(this.getClass().getName());
      }
  
      public boolean isAfterSemi() {
          return afterSemi;
      }
  
      public void setAfterSemi(boolean afterSemi) {
          this.afterSemi = afterSemi;
      }
  
      public SQLStatement clone() {
          throw new UnsupportedOperationException(this.getClass().getName());
      }
  
      protected void cloneTo(SQLStatementImpl x) {
          super.cloneTo(x);
          x.dbType = dbType;
          x.afterSemi = afterSemi;
          x.headHints = headHints;
      }
  
      public List<SQLCommentHint> getHeadHintsDirect() {
          return headHints;
      }
  
      public void setHeadHints(List<SQLCommentHint> headHints) {
          this.headHints = headHints;
      }
  }
  