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.dialect.oracle.ast.stmt;
  
  import com.alibaba.druid.sql.ast.SQLName;
  import com.alibaba.druid.sql.dialect.oracle.ast.OracleSQLObjectImpl;
  import com.alibaba.druid.sql.dialect.oracle.visitor.OracleASTVisitor;
  
  public abstract class OracleSelectRestriction extends OracleSQLObjectImpl {
      protected SQLName constraint;
  
      public OracleSelectRestriction() {
      }
  
      public SQLName getConstraint() {
          return constraint;
      }
  
      public void setConstraint(SQLName constraint) {
          if (constraint != null) {
              constraint.setParent(this);
          }
          this.constraint = constraint;
      }
  
      public static class CheckOption extends OracleSelectRestriction {
          public CheckOption() {
          }
  
          @Override
          public void accept0(OracleASTVisitor visitor) {
              if (visitor.visit(this)) {
                  acceptChild(visitor, this.constraint);
              }
  
              visitor.endVisit(this);
          }
  
          @Override
          public CheckOption clone() {
              CheckOption x = new CheckOption();
              if (constraint != null) {
                  x.setConstraint(constraint.clone());
              }
              return x;
          }
      }
  
      public static class ReadOnly extends OracleSelectRestriction {
          public ReadOnly() {
          }
  
          @Override
          public void accept0(OracleASTVisitor visitor) {
              visitor.visit(this);
  
              visitor.endVisit(this);
          }
  
          @Override
          public ReadOnly clone() {
              ReadOnly x = new ReadOnly();
              return x;
          }
      }
  
  }
  