org.apache.hadoop.mapred.lib.db

类 DBOutputFormat.DBRecordWriter

java.lang.Object

org.apache.hadoop.mapred.lib.db.DBOutputFormat.DBRecordWriter

所有已实现的接口:

RecordWriter<K,V>

封闭类:

DBOutputFormat<K extends DBWritable,V>

protected class DBOutputFormat.DBRecordWriter
extends Object
implements RecordWriter<K,V>

A RecordWriter that writes the reduce output to a SQL table

构造器概要

构造器

限定符	构造器和说明
protected	DBOutputFormat.DBRecordWriter(Connection connection, PreparedStatement statement)

方法概要

方法

限定符和类型	方法和说明
void	close(Reporter reporter) Close this RecordWriter to future operations.
void	write(K key, V value) Writes a key/value pair.

从类继承的方法 java.lang.Object

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

构造器详细资料

DBOutputFormat.DBRecordWriter

protected DBOutputFormat.DBRecordWriter(Connection connection,
                             PreparedStatement statement)
                                 throws SQLException

抛出:

SQLException

方法详细资料

close

public void close(Reporter reporter)
           throws IOException

Close this RecordWriter to future operations.

指定者:

close 在接口中 RecordWriter<K extends DBWritable,V>

参数:

reporter - facility to report progress.

抛出:

IOException

write

public void write(K key,
         V value)
           throws IOException

Writes a key/value pair.

指定者:

write 在接口中 RecordWriter<K extends DBWritable,V>

参数:

key - the key to write.

value - the value to write.

抛出:

IOException