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.statement;
  
  import com.alibaba.druid.sql.ast.SQLName;
  import com.alibaba.druid.sql.ast.SQLObjectImpl;
  import com.alibaba.druid.sql.visitor.SQLASTVisitor;
  
  public class SQLAlterTableDropConstraint extends SQLObjectImpl implements SQLAlterTableItem {
      private boolean ifExists;
      private SQLName constraintName;
  
      protected boolean cascade;
      protected boolean restrict;
  
      public boolean isIfExists() {
          return ifExists;
      }
  
      public void setIfExists(boolean ifExists) {
          this.ifExists = ifExists;
      }
  
      public boolean isCascade() {
          return cascade;
      }
  
      public void setCascade(boolean cascade) {
          this.cascade = cascade;
      }
  
      public boolean isRestrict() {
          return restrict;
      }
  
      public void setRestrict(boolean restrict) {
          this.restrict = restrict;
      }
  
      @Override
      protected void accept0(SQLASTVisitor visitor) {
          if (visitor.visit(this)) {
              acceptChild(visitor, this.constraintName);
          }
          visitor.endVisit(this);
      }
  
      public SQLName getConstraintName() {
          return constraintName;
      }
  
      public void setConstraintName(SQLName constraintName) {
          this.constraintName = constraintName;
      }
  
  }
  