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  1. JBeret
  2. JBERET-314

Implement ItemReader that reads from multiple resources

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Details

    • Feature Request
    • Resolution: Unresolved
    • Major
    • 1.4.0.Final
    • 1.3.0.Beta4
    • jberet-support
    • None

    Description

      Current implementations of ItemReader all take a single resource as the input. Oftentimes batch applications need to read from multiple resources, e.g., all CSV files under the same directories. Need to implement a MultiResourceItemReader that reads from multiple resources as if they are a single logic unit.

      Note that it can be hard to do rollback across resource boundaries, for instance, if it failed at the beginning of the 2nd file with the current chunk spanning across 2 files. Or should we just commit the chunk at the end of one resource, regardless of the item count?

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        Issue Links

          is related to

          Feature Request - Feature requests from customers and/or users JBERET-315 Implement ItemWriter that writes to multiple resources

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Coding In Progress
          relates to

          Feature Request - Feature requests from customers and/or users JBERET-24 Implement csv ItemReader

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved

          Feature Request - Feature requests from customers and/or users JBERET-31 Implement json ItemReader

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved

          Feature Request - Feature requests from customers and/or users JBERET-37 Implement batch xml ItemReader

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved

          Feature Request - Feature requests from customers and/or users JBERET-70 Implement Excel ItemReader

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved

          Enhancement - An enhancement to or refactoring of existing functionality that is not configurable by an end user (typically a change made by an internal team that affects users) JBERET-161 Implement JacksonCsvItemReader and JacksonCsvItemWriter

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved

          Enhancement - An enhancement to or refactoring of existing functionality that is not configurable by an end user (typically a change made by an internal team that affects users) JBERET-68 Implement Fixed length ItemReader

          • Optional - The request should be considered desirable but is not an immediate necessity.
          • Resolved

          Activity

            People

              weli@redhat.com Weinan Li
              cfang@redhat.com Cheng Fang
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              Dates

                Created:
                Updated: