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.ast.SQLName;
  import com.alibaba.druid.sql.ast.SQLStatementImpl;
  import com.alibaba.druid.sql.visitor.SQLASTVisitor;
  
  import java.util.ArrayList;
  import java.util.List;
  
  public class SQLDropViewStatement extends SQLStatementImpl implements SQLDropStatement {
      protected List<SQLExprTableSource> tableSources = new ArrayList<SQLExprTableSource>();
  
      protected boolean cascade;
      protected boolean restrict;
      protected boolean ifExists;
  
      public SQLDropViewStatement() {
      }
  
      public SQLDropViewStatement(DbType dbType) {
          super(dbType);
      }
  
      public SQLDropViewStatement(SQLName name) {
          this(new SQLExprTableSource(name));
      }
  
      public SQLDropViewStatement(SQLExprTableSource tableSource) {
          this.tableSources.add(tableSource);
      }
  
      public List<SQLExprTableSource> getTableSources() {
          return tableSources;
      }
  
      public void addPartition(SQLExprTableSource tableSource) {
          if (tableSource != null) {
              tableSource.setParent(this);
          }
          this.tableSources.add(tableSource);
      }
  
      public void setName(SQLName name) {
          this.addTableSource(new SQLExprTableSource(name));
      }
  
      public void addTableSource(SQLName name) {
          this.addTableSource(new SQLExprTableSource(name));
      }
  
      public void addTableSource(SQLExprTableSource tableSource) {
          tableSources.add(tableSource);
      }
  
      public boolean isCascade() {
          return cascade;
      }
  
      public void setCascade(boolean cascade) {
          this.cascade = cascade;
      }
  
      @Override
      protected void accept0(SQLASTVisitor visitor) {
          if (visitor.visit(this)) {
              for (int i = 0; i < tableSources.size(); i++) {
                  SQLExprTableSource item = tableSources.get(i);
                  if (item != null) {
                      item.accept(visitor);
                  }
              }
          }
          visitor.endVisit(this);
      }
  
      public boolean isRestrict() {
          return restrict;
      }
  
      public void setRestrict(boolean restrict) {
          this.restrict = restrict;
      }
  
      public boolean isIfExists() {
          return ifExists;
      }
  
      public void setIfExists(boolean ifExists) {
          this.ifExists = ifExists;
      }
  
      @Override
      public List getChildren() {
          return tableSources;
      }
  
      @Override
      public DDLObjectType getDDLObjectType() {
          return DDLObjectType.VIEW;
      }
  }
  