ItemProcessor (Spring Batch 4.1.4.RELEASE API)

All Known Implementing Classes:
AsyncItemProcessor, BeanValidatingItemProcessor, ClassifierCompositeItemProcessor, CompositeItemProcessor, CustomerCreditIncreaseProcessor, CustomerUpdateProcessor, FunctionItemProcessor, ItemProcessorAdapter, ItemProcessorAdapter, MessageProcessor, PassThroughItemProcessor, ScriptItemProcessor, SleepingItemProcessor, StagingItemProcessor, TradeProcessor, UserMailItemProcessor, ValidatingItemProcessor
```
public interface ItemProcessor<I,O>
```
Interface for item transformation. Given an item as input, this interface provides an extension point which allows for the application of business logic in an item oriented processing scenario. It should be noted that while it's possible to return a different type than the one provided, it's not strictly necessary. Furthermore, returning null indicates that the item should not be continued to be processed.
Author:
Robert Kasanicky, Dave Syer, Mahmoud Ben Hassine

- Method Summary
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  O process(I item)
  Process the provided item, returning a potentially modified or new item for continued processing.

- Method Detail
  - process
```
@Nullable
O process(I item)
   throws java.lang.Exception
```
    Process the provided item, returning a potentially modified or new item for continued processing. If the returned result is null, it is assumed that processing of the item should not continue.
    Parameters:
    item - to be processed
    Returns:
    potentially modified or new item for continued processing, null if processing of the provided item should not continue.
    Throws:
    java.lang.Exception - thrown if exception occurs during processing.