/*
* Copyright 1999-2011 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.oracle.demo;
import java.util.List;
import junit.framework.TestCase;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleOutputVisitor;
import com.alibaba.druid.sql.parser.SQLStatementParser;
public class Demo0 extends TestCase {
public void test_demo_0() throws Exception {
String sql = "SELECT SYSDATE FROM DUAL";
// parser得到AST
SQLStatementParser parser = new OracleStatementParser(sql);
List<SQLStatement> stmtList = parser.parseStatementList(); //
// 将AST通过visitor输出
StringBuilder out = new StringBuilder();
OracleOutputVisitor visitor = new OracleOutputVisitor(out);
for (SQLStatement stmt : stmtList) {
stmt.accept(visitor);
out.append(";");
}
System.out.println(out.toString());
}
}