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.DbType;
  import com.alibaba.druid.sql.SQLUtils;
  import com.alibaba.druid.sql.ast.*;
  import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
  
  import java.util.List;
  
  public abstract class SQLConstraintImpl extends SQLObjectImpl implements SQLConstraint, SQLDbTypedObject {
      protected DbType dbType;
      private SQLName name;
      protected Boolean enable;
      protected Boolean validate;
      protected Boolean rely;
      private SQLExpr comment;
  
      public List<SQLCommentHint> hints;
  
      public SQLConstraintImpl() {
      }
  
      public void cloneTo(SQLConstraintImpl x) {
          if (getName() != null) {
              x.setName(getName().clone());
          }
  
          x.enable = enable;
          x.validate = validate;
          x.rely = rely;
      }
  
      public List<SQLCommentHint> getHints() {
          return hints;
      }
  
      public void setHints(List<SQLCommentHint> hints) {
          this.hints = hints;
      }
  
      public SQLName getName() {
          return name;
      }
  
      public void setName(SQLName name) {
          if (name != null) {
              name.setParent(this);
          }
          this.name = name;
      }
  
      public void setName(String name) {
          this.setName(new SQLIdentifierExpr(name));
      }
  
      public Boolean getEnable() {
          return enable;
      }
  
      public void setEnable(Boolean enable) {
          this.enable = enable;
      }
  
      public void cloneTo(SQLConstraint x) {
          if (getName() != null) {
              x.setName(getName().clone());
          }
      }
  
      public Boolean getValidate() {
          return validate;
      }
  
      public void setValidate(Boolean validate) {
          this.validate = validate;
      }
  
      public Boolean getRely() {
          return rely;
      }
  
      public void setRely(Boolean rely) {
          this.rely = rely;
      }
  
      public DbType getDbType() {
          return dbType;
      }
  
      public void setDbType(DbType dbType) {
          this.dbType = dbType;
      }
  
      public SQLExpr getComment() {
          return comment;
      }
  
      public void setComment(SQLExpr x) {
          if (x != null) {
              x.setParent(this);
          }
          this.comment = x;
      }
  
      public void simplify() {
          if (getName() instanceof SQLIdentifierExpr) {
              SQLIdentifierExpr identExpr = (SQLIdentifierExpr) getName();
              String columnName = identExpr.getName();
  
              String normalized = SQLUtils.normalize(columnName, dbType);
              if (columnName != normalized) {
                  this.setName(normalized);
              }
          }
      }
  
      public boolean replace(SQLExpr expr, SQLExpr target) {
          if (getName() == expr) {
              setName((SQLName) target);
              return true;
          }
  
          if (getComment() == expr) {
              setComment(target);
              return true;
          }
          return false;
      }
  }
  