/* * 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.dialect.mysql.ast; import com.alibaba.druid.sql.ast.SQLObjectImpl; import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlASTVisitor; import com.alibaba.druid.sql.visitor.SQLASTVisitor; public abstract class MySqlObjectImpl extends SQLObjectImpl implements MySqlObject { @Override protected void accept0(SQLASTVisitor visitor) { if (visitor instanceof MySqlASTVisitor) { accept0((MySqlASTVisitor) visitor); } else { throw new IllegalArgumentException("not support visitor type : " + visitor.getClass().getName()); } } public abstract void accept0(MySqlASTVisitor visitor); }