org.apache.flink.api.java.io.jdbc

Class JDBCOutputFormat<OUT extends org.apache.flink.api.java.tuple.Tuple>

java.lang.Object

org.apache.flink.api.java.io.jdbc.JDBCOutputFormat<OUT>

Type Parameters:

OUT -

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.io.OutputFormat<OUT>

public class JDBCOutputFormat<OUT extends org.apache.flink.api.java.tuple.Tuple>
extends Object
implements org.apache.flink.api.common.io.OutputFormat<OUT>

OutputFormat to write tuples into a database. The OutputFormat has to be configured using the supplied OutputFormatBuilder.

See Also:

Tuple, DriverManager, Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	JDBCOutputFormat.JDBCOutputFormatBuilder

Constructor Summary

Constructors

Constructor and Description
JDBCOutputFormat()

Method Summary

Modifier and Type	Method and Description
static JDBCOutputFormat.JDBCOutputFormatBuilder	buildJDBCOutputFormat()
void	close() Executes prepared statement and closes all resources of this instance.
void	configure(org.apache.flink.configuration.Configuration parameters)
void	open(int taskNumber, int numTasks) Connects to the target database and initializes the prepared statement.
void	writeRecord(OUT tuple) Adds a record to the prepared statement.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JDBCOutputFormat

public JDBCOutputFormat()

Method Detail

configure

public void configure(org.apache.flink.configuration.Configuration parameters)

Specified by:

configure in interface org.apache.flink.api.common.io.OutputFormat<OUT extends org.apache.flink.api.java.tuple.Tuple>

open

public void open(int taskNumber,
                 int numTasks)
          throws IOException

Connects to the target database and initializes the prepared statement.

Specified by:

open in interface org.apache.flink.api.common.io.OutputFormat<OUT extends org.apache.flink.api.java.tuple.Tuple>

Parameters:

taskNumber - The number of the parallel instance.

Throws:

IOException - Thrown, if the output could not be opened due to an I/O problem.

writeRecord

public void writeRecord(OUT tuple)
                 throws IOException

Adds a record to the prepared statement.

When this method is called, the output format is guaranteed to be opened.

Specified by:

writeRecord in interface org.apache.flink.api.common.io.OutputFormat<OUT extends org.apache.flink.api.java.tuple.Tuple>

Parameters:

tuple - The records to add to the output.

Throws:

IOException - Thrown, if the records could not be added due to an I/O problem.

close

public void close()
           throws IOException

Executes prepared statement and closes all resources of this instance.

Specified by:

close in interface org.apache.flink.api.common.io.OutputFormat<OUT extends org.apache.flink.api.java.tuple.Tuple>

Throws:

IOException - Thrown, if the input could not be closed properly.

buildJDBCOutputFormat

public static JDBCOutputFormat.JDBCOutputFormatBuilder buildJDBCOutputFormat()