org.apache.accumulo.core.util.format
Class AggregatingFormatter

java.lang.Object
  org.apache.accumulo.core.util.format.DefaultFormatter
      org.apache.accumulo.core.util.format.AggregatingFormatter

All Implemented Interfaces:

Iterator<String>, Formatter

Direct Known Subclasses:

ShardedTableDistributionFormatter, StatisticsDisplayFormatter

public abstract class AggregatingFormatter
extends DefaultFormatter

Formatter that will aggregate entries for various display purposes.

Constructor Summary

AggregatingFormatter()

Method Summary

protected abstract void	aggregateStats(Map.Entry<Key,Value> next) Generate statistics from each Map.Entry, called for each entry to be iterated over.
protected abstract String	getStats() Finalize the aggregation and return the result.
String	next()

Methods inherited from class org.apache.accumulo.core.util.format.DefaultFormatter

checkState, formatEntry, formatEntry, getScannerIterator, hasNext, initialize, isDoTimestamps, next, remove

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AggregatingFormatter

public AggregatingFormatter()

Method Detail

next

public String next()

Specified by:

next in interface Iterator<String>

Overrides:

next in class DefaultFormatter

aggregateStats

protected abstract void aggregateStats(Map.Entry<Key,Value> next)

Generate statistics from each Map.Entry, called for each entry to be iterated over.

Parameters:

next - the next entry to aggregate

getStats

protected abstract String getStats()

Finalize the aggregation and return the result. Called once at the end.

Returns:

the aggregation results, suitable for printing to the console