Github user keith-turner commented on a diff in the pull request:
https://github.com/apache/accumulo/pull/25#discussion_r27989335
--- Diff:
core/src/main/java/org/apache/accumulo/core/client/mapred/AbstractInputFormat.java
---
@@ -384,7 +387,21 @@ public static InputTableConfig
getInputTableConfig(JobConf job, String tableName
protected abstract static class AbstractRecordReader<K,V> implements
RecordReader<K,V> {
protected long numKeysRead;
protected Iterator<Map.Entry<Key,Value>> scannerIterator;
- protected RangeInputSplit split;
+ protected
org.apache.accumulo.core.client.mapreduce.impl.AccumuloInputSplit split;
+ protected ScannerBase scannerBase;
+
+ /**
+ * Configures the iterators on a scanner for the given table name.
+ *
+ * @param job
+ * the Hadoop job configuration
+ * @param scanner
+ * the scanner for which to configure the iterators
+ * @param tableName
+ * the table name for which the scanner is configured
+ * @since 1.7.0
+ */
+ protected abstract void setupIterators(JobConf job, ScannerBase
scanner, String tableName, AccumuloInputSplit split);
--- End diff --
> Actually that's just factored out of old RangeInputSplit.
Thanks for the background. I'll take a look at the history of
`RangeInputSplit` and see if I can gain any understanding.
The reason I started wondering about this was the following code from your
suggestion. I was trying to understand the case when `null == iterators` is
true.
```java
iterators = split.getIterators();
if (null == iterators) {
iterators = contextIterators(context, tableName);
}
```
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