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.visitor.SQLASTVisitor;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * @author zz [455910092@qq.com]
   */
  public class SQLWhileStatement extends SQLStatementImpl implements SQLReplaceable {
      //while expr
      private SQLExpr condition;
      private List<SQLStatement> statements = new ArrayList<SQLStatement>();
      //while label name
      private String labelName;
  
      public String getLabelName() {
          return labelName;
      }
  
      public void setLabelName(String labelName) {
          this.labelName = labelName;
      }
  
      public void accept0(SQLASTVisitor visitor) {
          if (visitor.visit(this)) {
              acceptChild(visitor, condition);
              acceptChild(visitor, statements);
          }
          visitor.endVisit(this);
      }
  
      @Override
      public List<SQLObject> getChildren() {
          List<SQLObject> children = new ArrayList<SQLObject>();
          children.add(condition);
          children.addAll(this.statements);
          return children;
      }
  
      public List<SQLStatement> getStatements() {
          return statements;
      }
  
      public void setStatements(List<SQLStatement> statements) {
          this.statements = statements;
      }
  
      public SQLExpr getCondition() {
          return condition;
      }
  
      public void setCondition(SQLExpr x) {
          if (x != null) {
              x.setParent(this);
          }
  
          this.condition = x;
      }
  
      public SQLWhileStatement clone() {
          SQLWhileStatement x = new SQLWhileStatement();
  
          if (condition != null) {
              x.setCondition(condition.clone());
          }
          for (SQLStatement stmt : statements) {
              SQLStatement stmt2 = stmt.clone();
              stmt2.setParent(x);
              x.statements.add(stmt2);
          }
          x.labelName = labelName;
          return x;
      }
  
      @Override
      public boolean replace(SQLExpr expr, SQLExpr target) {
          if (condition == expr) {
              setCondition(target);
              return true;
          }
  
          return false;
      }
  }
  