com.feedzai.commons.sql.abstraction.batch

Class AbstractPdbBatch

java.lang.Object

com.feedzai.commons.sql.abstraction.batch.AbstractPdbBatch

All Implemented Interfaces:

PdbBatch, AutoCloseable

Direct Known Subclasses:

AbstractBatch, MultithreadedBatch

public abstract class AbstractPdbBatch
extends Object
implements PdbBatch

A abstract PdbBatch with useful default base methods for concrete implementations.

Author:

José Fidalgo (jose.fidalgo@feedzai.com)

Constructor Summary

Constructors

Constructor and Description
AbstractPdbBatch()

Method Summary

Modifier and Type	Method and Description
void	add(String entityName, EntityEntry ee) Adds the entry to the batch.
CompletableFuture<Void>	flushAsync() Flushes the pending batches asynchronously, if the implementation allows it; otherwise, by default, this should simply call PdbBatch.flush() and return the future when done.
protected void	processBatch(DatabaseEngine de, List<BatchEntry> batchEntries) Processes all batch entries.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.feedzai.commons.sql.abstraction.batch.PdbBatch

add, flush

Methods inherited from interface java.lang.AutoCloseable

close

Constructor Detail

AbstractPdbBatch

public AbstractPdbBatch()

Method Detail

add

public void add(String entityName,
                EntityEntry ee)
         throws Exception

Description copied from interface: PdbBatch

Adds the entry to the batch.

Specified by:

add in interface PdbBatch

Parameters:

entityName - The table name.

ee - The entity entry.

Throws:

Exception - If an error occurs while adding to the batch.

flushAsync

public CompletableFuture<Void> flushAsync()

Description copied from interface: PdbBatch

Flushes the pending batches asynchronously, if the implementation allows it; otherwise, by default, this should simply call PdbBatch.flush() and return the future when done.

Specified by:

flushAsync in interface PdbBatch

Returns:

A void CompletableFuture that completes when the flush action finishes.

processBatch

protected void processBatch(DatabaseEngine de,
                            List<BatchEntry> batchEntries)
                     throws DatabaseEngineException

Processes all batch entries.

This is done by starting a transaction, adding all batch entries to their respective prepared statements, flushing them and finally performing a commit on the transaction (which will finish that transaction).

Parameters:

de - The DatabaseEngine on which to perform the flush.

batchEntries - The list of batch entries to be flushed.

Throws:

DatabaseEngineException - If the operation failed.