org.apache.hadoop.hbase.client
Class MetaScanner.DefaultMetaScannerVisitor

java.lang.Object
  org.apache.hadoop.hbase.client.MetaScanner.MetaScannerVisitorBase
      org.apache.hadoop.hbase.client.MetaScanner.DefaultMetaScannerVisitor

All Implemented Interfaces:

Closeable, MetaScanner.MetaScannerVisitor

Direct Known Subclasses:

MetaScanner.TableMetaScannerVisitor

Enclosing class:

MetaScanner

public abstract static class MetaScanner.DefaultMetaScannerVisitor
extends MetaScanner.MetaScannerVisitorBase

A MetaScannerVisitor that provides a consistent view of the table's META entries during concurrent splits (see HBASE-5986 for details). This class does not guarantee ordered traversal of meta entries, and can block until the META entries for daughters are available during splits.

Field Summary

protected org.apache.hadoop.conf.Configuration

conf

Constructor Summary

MetaScanner.DefaultMetaScannerVisitor(org.apache.hadoop.conf.Configuration conf)

Method Summary

boolean	processRow(Result rowResult) Visitor method that accepts a RowResult and the meta region location.
abstract boolean	processRowInternal(Result rowResult)

Methods inherited from class org.apache.hadoop.hbase.client.MetaScanner.MetaScannerVisitorBase

close

Methods inherited from class java.lang.Object

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

Field Detail

conf

protected org.apache.hadoop.conf.Configuration conf

Constructor Detail

MetaScanner.DefaultMetaScannerVisitor

public MetaScanner.DefaultMetaScannerVisitor(org.apache.hadoop.conf.Configuration conf)

Method Detail

processRowInternal

public abstract boolean processRowInternal(Result rowResult)
                                    throws IOException

Throws:

IOException

processRow

public boolean processRow(Result rowResult)
                   throws IOException

Description copied from interface: MetaScanner.MetaScannerVisitor

Visitor method that accepts a RowResult and the meta region location. Implementations can return false to stop the region's loop if it becomes unnecessary for some reason.

Parameters:

rowResult - result

Returns:

A boolean to know if it should continue to loop in the region

Throws:

IOException - e