Package org.springframework.batch.sample.common

Class InfiniteLoopReader

  • All Implemented Interfaces:
    ItemReader<java.lang.Object>
    public class InfiniteLoopReader
extends java.lang.Object
implements ItemReader<java.lang.Object>
    ItemReader implementation that will continually return a new object. It's generally useful for testing interruption.
    Author:
    Lucas Ward

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and TypeMethodDescription
      java.lang.Objectread()
      Reads a piece of input data and advance to the next one.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • InfiniteLoopReader

        public InfiniteLoopReader()

    • Method Detail

      • read

        public java.lang.Object read()
                      throws java.lang.Exception
        Description copied from interface: ItemReader
        Reads a piece of input data and advance to the next one. Implementations must return null at the end of the input data set. In a transactional setting, caller might get the same item twice from successive calls (or otherwise), if the first call was in a transaction that rolled back.
        Specified by:
        read in interface ItemReader<java.lang.Object>
        Returns:
        T the item to be processed or null if the data source is exhausted
        Throws:
        ParseException - if there is a problem parsing the current record (but the next one may still be valid)
        NonTransientResourceException - if there is a fatal exception in the underlying resource. After throwing this exception implementations should endeavour to return null from subsequent calls to read.
        UnexpectedInputException - if there is an uncategorised problem with the input data. Assume potentially transient, so subsequent calls to read might succeed.
        java.lang.Exception - if an there is a non-specific error.