BatchWriter (InterMine 5.0.0 API)

All Known Implementing Classes:

BatchWriterPostgresCopyImpl, BatchWriterPreparedStatementImpl, BatchWriterSimpleImpl
```
public interface BatchWriter
```
An interface representing an object that can flush a TableBatch to an SQL server Connection.

Author:

Matthew Wakeling

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`updateStatistics(java.util.Map<java.lang.String,java.lang.Integer> activity, java.sql.Connection con)`	Updates the per-table statistics held in this object, and may tell the SQL database to update its statistics using the supplied Connection.
`java.util.List<FlushJob>`	`write(java.sql.Connection con, java.util.Map<java.lang.String,? extends Table> tables, java.util.Set<java.lang.String> filter)`	Performs all the processing for flushing a few tables to the connection, and returns a List of jobs to do the actual flushing.

- Method Detail
  - write
```
java.util.List<FlushJob> write(java.sql.Connection con,
                               java.util.Map<java.lang.String,? extends Table> tables,
                               java.util.Set<java.lang.String> filter)
                        throws java.sql.SQLException
```
    Performs all the processing for flushing a few tables to the connection, and returns a List of jobs to do the actual flushing.
    
    Parameters:
    
    con - the SQL connection
    
    tables - a Map from table name to Table
    
    filter - a Set of table names to write, or null to write all tables
    
    Returns:
    
    a List of jobs to run to actually do the flushing
    
    Throws:
    
    java.sql.SQLException - if there is an underlying DB problem
  - updateStatistics
```
void updateStatistics(java.util.Map<java.lang.String,java.lang.Integer> activity,
                      java.sql.Connection con)
               throws java.sql.SQLException
```
    Updates the per-table statistics held in this object, and may tell the SQL database to update its statistics using the supplied Connection.
    
    Parameters:
    
    activity - a Map from table name to the amount of activity (in rows) as an Integer
    
    con - a Connection, over which to talk to the database
    
    Throws:
    
    java.sql.SQLException - if there is an underlying DB problem