Package org.apache.iceberg.actions

Interface ConvertEqualityDeleteStrategy

  • public interface ConvertEqualityDeleteStrategy
    A strategy for the action to convert equality delete to position deletes.

    • Method Detail

      • name

        java.lang.String name()
        Returns the name of this convert deletes strategy

      • table

        Table table()
        Returns the table being modified by this convert strategy

      • validOptions

        java.util.Set<java.lang.String> validOptions()
        Returns a set of options which this convert strategy can use. This is an allowed-list and any options not specified here will be rejected at runtime.

      • options

        ConvertEqualityDeleteStrategy options​(java.util.Map<java.lang.String,​java.lang.String> options)
        Sets options to be used with this strategy

      • selectDeleteFiles

        java.lang.Iterable<DeleteFile> selectDeleteFiles​(java.lang.Iterable<DeleteFile> deleteFiles)
        Select the delete files to convert.
        Parameters:
        deleteFiles - iterable of delete files in a group.
        Returns:
        iterable of original delete file to be converted.

      • planDeleteFileGroups

        java.lang.Iterable<java.lang.Iterable<FileScanTask>> planDeleteFileGroups​(java.lang.Iterable<FileScanTask> dataFiles)
        Groups delete files into lists which will be processed in a single executable unit. Each group will end up being committed as an independent set of changes. This creates the jobs which will eventually be run as by the underlying Action.
        Parameters:
        dataFiles - iterable of data files that contain the DeleteFile to be converted
        Returns:
        iterable of lists of FileScanTasks which will be processed together

      • convertDeleteFiles

        java.lang.Iterable<DeleteFile> convertDeleteFiles​(java.lang.Iterable<DeleteFile> deleteFilesToConvert)
        Define how to convert the deletes.
        Parameters:
        deleteFilesToConvert - a group of files to be converted together
        Returns:
        iterable of delete files used to replace the original delete files.