Module jakarta.batch
Package jakarta.batch.api.chunk

Class AbstractItemWriter

  • All Implemented Interfaces:
    ItemWriter
    public abstract class AbstractItemWriter
extends java.lang.Object
implements ItemWriter
    The AbstractItemWriter provides default implementations of not commonly implemented methods.

    • Method Summary

      All Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method Description
      java.io.Serializable checkpointInfo()
      Override this method if the ItemWriter supports checkpoints.
      void close()
      Override this method if the ItemWriter requires any close time processing.
      void open​(java.io.Serializable checkpoint)
      Override this method if the ItemWriter requires any open time processing.
      abstract void writeItems​(java.util.List<java.lang.Object> items)
      Implement write logic for the ItemWriter in this method.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • AbstractItemWriter

        public AbstractItemWriter()

    • Method Detail

      • open

        public void open​(java.io.Serializable checkpoint)
          throws java.lang.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:
        java.lang.Exception - (or subclass) if an error occurs.

      • close

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

      • writeItems

        public abstract void writeItems​(java.util.List<java.lang.Object> items)
                         throws java.lang.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:
        java.lang.Exception - (or subclass) if an error occurs.

      • checkpointInfo

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