Flink JDBCInputFormat cannot find method 'setRowTypeInfo' - jdbc

Question

I want to use flink-jdbc to get data from mysql。
I have seen an example on Apache flink website
// Read data from a relational database using the JDBC input format
DataSet<Tuple2<String, Integer> dbData =
env.createInput(
JDBCInputFormat.buildJDBCInputFormat()
.setDrivername("org.apache.derby.jdbc.EmbeddedDriver")
.setDBUrl("jdbc:derby:memory:persons")
.setQuery("select name, age from persons")
.setRowTypeInfo(new RowTypeInfo(BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.INT_TYPE_INFO))
.finish()
);
But when i try to write a demo， i can't find the method 'setRowTypeInfo'.
It was like this
import org.apache.flink.api.common.typeinfo.BasicTypeInfo
import org.apache.flink.api.java.ExecutionEnvironment
import org.apache.flink.api.java.io.jdbc.JDBCInputFormat
import org.apache.flink.api.scala._
/**
* Created by lulijun on 17/7/7.
*/
object FlinkJDBC {
def main(args:Array[String]): Unit = {
val env = ExecutionEnvironment.createLocalEnvironment()
val dbData = env.createInput(
JDBCInputFormat.buildJDBCInputFormat
.setDrivername("com.mysql.jdbc.Driver")
.setDBUrl("XXX")
.setUsername("xxx")
.setPassword("XXX")
.setQuery("select name, age from persons")
.setRowTypeInfo(new Nothing(BasicTypeInfo.STRING_TYPE_INFO, BasicTypeInfo.INT_TYPE_INFO))
.finish)
dbData.print()
env.execute()
}
}
The "setRowTypeInfo" method is always red, and the IDEA prompts
"cannot resolve symbol setRowTypeInfo"
The jar version of flink-jdbc i used is 1.0.0.
<dependencies>
<!-- Use this dependency if you are using the DataSet API -->
<dependency>
<groupId>org.apache.flink</groupId>
<artifactId>flink-scala_2.10</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>org.apache.flink</groupId>
<artifactId>flink-clients_2.10</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>org.apache.flink</groupId>
<artifactId>flink-jdbc</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.36</version>
</dependency>
</dependencies>
I have searched a lot, and most of the people use the method exactly like the official document, but on one mentioned this problem.
I doubt whether I used the wrong version of flink-jdbc, but I cannot get any information about the right way to use flink-jdbc.
If you know the problem, please teach me.Thank you.

Answer 1

I changed the flink-jdbc version from 1.0.0 to 1.3.0 and the problem solved.
But when I search flink-jdbc on maven websit
https://mvnrepository.com/search?q=flink-jdbc, I can't get the right information in the first few pages, It makes me thought the version of flink-jdbc do not need to be matched with other flink jars.
But the truth is flink-jdbc/1.1.3 use class RowTypeInfo of package api.table, but flink-jdbc/1.3.0 use class RowTypeInfo of package api.java.They have close ties with each other.
We must make sure the version is matched.