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.*;
  import com.alibaba.druid.sql.dialect.mysql.ast.MySqlKey;
  import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlTableIndex;
  import com.alibaba.druid.sql.visitor.SQLASTVisitor;
  
  import java.util.List;
  
  public class SQLAlterTableAlterIndex extends SQLObjectImpl implements SQLAlterTableItem, SQLIndex {
      private SQLIndexDefinition indexDefinition = new SQLIndexDefinition();
  
      public SQLAlterTableAlterIndex() {
          indexDefinition.setParent(this);
      }
  
      public SQLIndexDefinition getIndexDefinition() {
          return indexDefinition;
      }
  
      @Override
      protected void accept0(SQLASTVisitor visitor) {
          if (visitor.visit(this)) {
              if (indexDefinition.getName() != null) {
                  indexDefinition.getName().accept(visitor);
              }
  
              for (int i = 0; i < getColumns().size(); i++) {
                  final SQLSelectOrderByItem item = getColumns().get(i);
                  if (item != null) {
                      item.accept(visitor);
                  }
              }
              for (int i = 0; i < getCovering().size(); i++) {
                  final SQLName item = getCovering().get(i);
                  if (item != null) {
                      item.accept(visitor);
                  }
              }
          }
          visitor.endVisit(this);
      }
  
      public boolean isUnique() {
          return indexDefinition.getType() != null && indexDefinition.getType().equalsIgnoreCase("UNIQUE");
      }
  
      public void setUnique(boolean unique) {
          indexDefinition.setType("UNIQUE");
      }
  
      public List<SQLSelectOrderByItem> getItems() {
          return indexDefinition.getColumns();
      }
  
      public void addItem(SQLSelectOrderByItem item) {
          if (item != null) {
              item.setParent(this);
          }
          indexDefinition.getColumns().add(item);
      }
  
      public SQLName getName() {
          return indexDefinition.getName();
      }
  
      public void setName(SQLName name) {
          indexDefinition.setName(name);
      }
  
      public String getType() {
          return indexDefinition.getType();
      }
  
      public void setType(String type) {
          indexDefinition.setType(type);
      }
  
      public String getUsing() {
          if (indexDefinition.hasOptions()) {
              return indexDefinition.getOptions().getIndexType();
          }
          return null;
      }
  
      public void setUsing(String using) {
          indexDefinition.getOptions().setIndexType(using);
      }
  
      public boolean isKey() {
          return indexDefinition.isKey();
      }
  
      public void setKey(boolean key) {
          indexDefinition.setKey(key);
      }
  
      public void cloneTo(MySqlTableIndex x) {
          indexDefinition.cloneTo(x.getIndexDefinition());
      }
  
      public void cloneTo(MySqlKey x) {
          indexDefinition.cloneTo(x.getIndexDefinition());
      }
  
      public SQLExpr getComment() {
          if (indexDefinition.hasOptions()) {
              return indexDefinition.getOptions().getComment();
          }
          return null;
      }
  
      public void setComment(SQLExpr comment) {
          if (comment != null) {
              comment.setParent(this);
          }
          indexDefinition.getOptions().setComment(comment);
      }
  
      public SQLExpr getKeyBlockSize() {
          if (indexDefinition.hasOptions()) {
              return indexDefinition.getOptions().getKeyBlockSize();
          }
          return null;
      }
  
      public void setKeyBlockSize(SQLExpr keyBlockSize) {
          indexDefinition.getOptions().setKeyBlockSize(keyBlockSize);
      }
  
      public String getParserName() {
          if (indexDefinition.hasOptions()) {
              return indexDefinition.getOptions().getParserName();
          }
          return null;
      }
  
      public void setParserName(String parserName) {
          indexDefinition.getOptions().setParserName(parserName);
      }
  
      public boolean isHashMapType() {
          return indexDefinition.isHashMapType();
      }
  
      public void setHashMapType(boolean hashMapType) {
          indexDefinition.setHashMapType(hashMapType);
      }
  
      protected SQLExpr getOption(long hash64) {
          return indexDefinition.getOption(hash64);
      }
  
      public String getDistanceMeasure() {
          return indexDefinition.getDistanceMeasure();
      }
  
      public String getAlgorithm() {
          return indexDefinition.getAlgorithm();
      }
  
      public void addOption(String name, SQLExpr value) {
          indexDefinition.addOption(name, value);
      }
  
      public List<SQLAssignItem> getOptions() {
          return indexDefinition.getCompatibleOptions();
      }
  
      public boolean isGlobal() {
          return indexDefinition.isGlobal();
      }
  
      public void setGlobal(boolean global) {
          indexDefinition.setGlobal(global);
      }
  
      public SQLExpr getDbPartitionBy() {
          return indexDefinition.getDbPartitionBy();
      }
  
      public void setDbPartitionBy(SQLExpr x) {
          indexDefinition.setDbPartitionBy(x);
      }
  
      public SQLExpr getTablePartitionBy() {
          return indexDefinition.getTbPartitionBy();
      }
  
      public void setTablePartitionBy(SQLExpr x) {
          indexDefinition.setTbPartitionBy(x);
      }
  
      public SQLExpr getTablePartitions() {
          return indexDefinition.getTbPartitions();
      }
  
      public void setTablePartitions(SQLExpr x) {
          indexDefinition.setTbPartitions(x);
      }
  
      @Override
      public List<SQLName> getCovering() {
          return indexDefinition.getCovering();
      }
  
      @Override
      public List<SQLSelectOrderByItem> getColumns() {
          return indexDefinition.getColumns();
      }
  }
  