Class AbstractItemWriter

  • All Implemented Interfaces:
    ItemWriter

    public abstract class AbstractItemWriter
    extends Object
    implements ItemWriter
    The AbstractItemWriter provides default implementations of not commonly implemented methods.
    • Constructor Detail

      • AbstractItemWriter

        public AbstractItemWriter()
    • Method Detail

      • open

        public void open​(Serializable checkpoint)
                  throws Exception
        Override this method if the ItemWriter requires any open time processing. The default implementation does nothing.
        Specified by:
        open in interface ItemWriter
        Parameters:
        checkpoint - last checkpoint for this ItemReader
        Throws:
        Exception - (or subclass) if an error occurs.
      • close

        public void close()
                   throws Exception
        Override this method if the ItemWriter requires any close time processing. The default implementation does nothing.
        Specified by:
        close in interface ItemWriter
        Throws:
        Exception - (or subclass) if an error occurs.
      • writeItems

        public abstract void writeItems​(List<Object> items)
                                 throws Exception
        Implement write logic for the ItemWriter in this method.
        Specified by:
        writeItems in interface ItemWriter
        Parameters:
        items - specifies the list of items to write.
        Throws:
        Exception - (or subclass) if an error occurs.
      • checkpointInfo

        public Serializable checkpointInfo()
                                    throws Exception
        Override this method if the ItemWriter supports checkpoints. The default implementation returns null.
        Specified by:
        checkpointInfo in interface ItemWriter
        Returns:
        checkpoint data
        Throws:
        Exception - (or subclass) if an error occurs.