com.xxdb.route

Class PartitionedTableAppender

java.lang.Object

com.xxdb.route.PartitionedTableAppender

public class PartitionedTableAppender
extends Object

PartitionedTableAppender is used to append rows to a partitioned table across a cluster of DolphinDB instances.

 

 PartitionedTableAppender tableAppender = new PartitionedTableAppender("Trades", "192.168.1.25", 8848);
 List<Entity> row = new ArrayList<>();
 row.add(BasicInt(1));
 row.add(BasicString('A'));
 int affected = tableAppender.append(row);

 // append multiple rows at a time
 List<Entity> rows = new ArrayList<>();
 BasicIntVector vint = new BasicIntVector(Arrays.asList(1,2,3,4,5));
 BasicStringVector vstring = new BasicStringVector(Arrays.asList("A", "B", "C", "D", "E"));
 rows.add(vint);
 rows.add(vstring);
 affected = tableAppender.append(rows);


 // cleanup
 tableAppender.shutdownThreadPool();
 
 

Constructor Summary

Constructors

Constructor and Description
PartitionedTableAppender(String tableName, String host, int port)
PartitionedTableAppender(String tableName, String host, int port, int threadCount)

Method Summary

Modifier and Type	Method and Description
int	append(List<Entity> row) Append a list of columns to the table.
void	shutdownThreadPool()

Methods inherited from class java.lang.Object

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

Constructor Detail

PartitionedTableAppender

public PartitionedTableAppender(String tableName,
                                String host,
                                int port)
                         throws IOException

Parameters:

tableName - name of the shared table

host - host

port - port

Throws:

IOException

PartitionedTableAppender

public PartitionedTableAppender(String tableName,
                                String host,
                                int port,
                                int threadCount)
                         throws IOException

Throws:

IOException

Method Detail

append

public int append(List<Entity> row)
           throws IOException

Append a list of columns to the table.

Parameters:

row -

Returns:

number of rows appended.

Throws:

IOException

shutdownThreadPool

public void shutdownThreadPool()