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.visitor.SQLASTVisitor;
  
  import java.util.ArrayList;
  import java.util.List;
  
  public class SQLColumnReference extends SQLConstraintImpl implements SQLColumnConstraint {
      private SQLName table;
      private List<SQLName> columns = new ArrayList<SQLName>();
  
      private SQLForeignKeyImpl.Match referenceMatch;
      protected SQLForeignKeyImpl.Option onUpdate;
      protected SQLForeignKeyImpl.Option onDelete;
      private boolean notEnforced;
  
      public SQLColumnReference() {
      }
  
      @Override
      protected void accept0(SQLASTVisitor visitor) {
          if (visitor.visit(this)) {
              acceptChild(visitor, this.getName());
          }
          visitor.endVisit(this);
      }
  
      public SQLName getTable() {
          return table;
      }
  
      public void setTable(SQLName table) {
          this.table = table;
      }
  
      public List<SQLName> getColumns() {
          return columns;
      }
  
      public void setColumns(List<SQLName> columns) {
          this.columns = columns;
      }
  
      public SQLColumnReference clone() {
          SQLColumnReference x = new SQLColumnReference();
  
          super.cloneTo(x);
  
          if (table != null) {
              x.setTable(table.clone());
          }
  
          for (SQLName column : columns) {
              SQLName columnCloned = column.clone();
              columnCloned.setParent(x);
              x.columns.add(columnCloned);
          }
  
          x.referenceMatch = referenceMatch;
          x.onUpdate = onUpdate;
          x.onDelete = onDelete;
  
          return x;
      }
  
      public SQLForeignKeyImpl.Match getReferenceMatch() {
          return referenceMatch;
      }
  
      public void setReferenceMatch(SQLForeignKeyImpl.Match referenceMatch) {
          this.referenceMatch = referenceMatch;
      }
  
      public SQLForeignKeyImpl.Option getOnUpdate() {
          return onUpdate;
      }
  
      public void setOnUpdate(SQLForeignKeyImpl.Option onUpdate) {
          this.onUpdate = onUpdate;
      }
  
      public SQLForeignKeyImpl.Option getOnDelete() {
          return onDelete;
      }
  
      public void setOnDelete(SQLForeignKeyImpl.Option onDelete) {
          this.onDelete = onDelete;
      }
  
      public boolean isNotEnforced() {
          return notEnforced;
      }
  
      public void setNotEnforced(boolean notEnforced) {
          this.notEnforced = notEnforced;
      }
  }
  