content: /*
   * Copyright 1999-2012 Alibaba Group.
   *  
   * 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.
   */
  /**
   * (created at 2011-2-9)
   */
  package com.alibaba.cobar.parser.ast.fragment.tableref;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import com.alibaba.cobar.parser.ast.expression.primary.Identifier;
  import com.alibaba.cobar.parser.visitor.SQLASTVisitor;
  
  /**
   * @author <a href="mailto:shuo.qius@alibaba-inc.com">QIU Shuo</a>
   */
  public class TableRefFactor extends AliasableTableReference {
      /** e.g. <code>"`db2`.`tb1`"</code> is possible */
      private final Identifier table;
      private final List<IndexHint> hintList;
  
      public TableRefFactor(Identifier table, String alias, List<IndexHint> hintList) {
          super(alias);
          this.table = table;
          if (hintList == null || hintList.isEmpty()) {
              this.hintList = Collections.emptyList();
          } else if (hintList instanceof ArrayList) {
              this.hintList = hintList;
          } else {
              this.hintList = new ArrayList<IndexHint>(hintList);
          }
      }
  
      public TableRefFactor(Identifier table, List<IndexHint> hintList) {
          this(table, null, hintList);
      }
  
      public Identifier getTable() {
          return table;
      }
  
      public List<IndexHint> getHintList() {
          return hintList;
      }
  
      @Override
      public Object removeLastConditionElement() {
          return null;
      }
  
      @Override
      public boolean isSingleTable() {
          return true;
      }
  
      @Override
      public int getPrecedence() {
          return TableReference.PRECEDENCE_FACTOR;
      }
  
      @Override
      public void accept(SQLASTVisitor visitor) {
          visitor.visit(this);
      }
  }
  