Reading the content of a sequential data set


To read the content of a sequential data set from an ISequentialDataSet:

ISequentialDataSet sequentialDataSet = ...

// create a BufferedReader wrapping a new DataSetReader using a
// try-with-resources statement
try (BufferedReader reader = new BufferedReader(new DataSetReader(
       sequentialDataSet))) {
   // read the sequential dataset data using the reader
   String record;
   while ((record = reader.readLine()) != null) {
       // note: non-displayable characters will be output as the
       // '\uFFFD' (lozenge) character (displays as '?' in some
       // character sets)
       System.out.println(record);
    }
} catch (DataSetAccessException e) {
   // the user does not have access to the sequential dataset
    ...
} catch (DataSetInUseException e) {
   // the sequential dataset is enqueued by another user or job
    ...
} catch (DataSetMigratedException e) {
   // the sequential dataset has been migrated since it was first
   // retrieved
    ...
} catch (DataSetNotFoundException e) {
   // the sequential dataset can no longer be found
    ...
} catch (IOException e) {
   // an IO error has occurred reading a line and/or closing the reader
    ...
}

To read the content of a sequential data set using an IZOSHostConnection:

IZOSHostConnection zosHostConnection = ...
String sequentialDataSetName = ...

// create a BufferedReader wrapping a new DataSetReader using a
// try-with-resource statement
try (BufferedReader reader = new BufferedReader(new DataSetReader(
       zosHostConnection, sequentialDataSetName))) {
   // read the sequential dataset data using the reader
   String record;
   while ((record = reader.readLine()) != null) {
       // note: non-displayable characters will be output as the
       // '\uFFFD' (lozenge) character (displays as '?' in some
       // character sets)
       System.out.println(record);
    }
} catch (DataSetAccessException e) {
   // the user does not have access to the sequential dataset
    ...
} catch (DataSetInUseException e) {
   // the sequential dataset is enqueued by another user or job
    ...
} catch (DataSetMigratedException e) {
   // the sequential dataset is migrated
    ...
} catch (DataSetNotFoundException e) {
   // the sequential dataset could not be found or is not a sequential
   // dataset
    ...
} catch (IOException e) {
   // an IO error has occurred reading a line and/or closing the reader
    ...
}

 

Tip: For faster searching, add an asterisk to the end of your partial query. Example: cert*