com.bigdata.mdi

Class MetadataIndex.MetadataIndexCheckpoint

java.lang.Object

com.bigdata.btree.Checkpoint

com.bigdata.mdi.MetadataIndex.MetadataIndexCheckpoint

All Implemented Interfaces:

ICheckpoint, Externalizable, Serializable

Enclosing class:

MetadataIndex

public static class MetadataIndex.MetadataIndexCheckpoint
extends Checkpoint

Extends the Checkpoint record to store the next partition identifier to be assigned by the metadata index.

Version:

$Id$

Author:

Bryan Thompson

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MetadataIndex.MetadataIndexCheckpoint() De-serialization constructor.
MetadataIndex.MetadataIndexCheckpoint(BTree btree)
MetadataIndex.MetadataIndexCheckpoint(IndexMetadata metadata) Create the initial checkpoint record for the initial metadata index.
MetadataIndex.MetadataIndexCheckpoint(IndexMetadata metadata, Checkpoint oldCheckpoint) Create the initial checkpoint record when the metadata index overflows onto a new backing store.

Method Summary

Methods

Modifier and Type	Method and Description
int	getNextPartitionId() The immutable value of the nextPartitionId counter stored in the metadata record.
void	readExternal(ObjectInput in)
void	writeExternal(ObjectOutput out)

Methods inherited from class com.bigdata.btree.Checkpoint

create, getBloomFilterAddr, getCheckpointAddr, getCounter, getEntryCount, getGlobalDepth, getHeight, getIndexType, getLeafCount, getMetadataAddr, getNodeCount, getRecordVersion, getRootAddr, hasCheckpointAddr, load, loadFromCheckpoint, toString, write

Methods inherited from class java.lang.Object

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

Constructor Detail

MetadataIndex.MetadataIndexCheckpoint

public MetadataIndex.MetadataIndexCheckpoint()

De-serialization constructor.

MetadataIndex.MetadataIndexCheckpoint

public MetadataIndex.MetadataIndexCheckpoint(BTree btree)

Parameters:

btree -

MetadataIndex.MetadataIndexCheckpoint

public MetadataIndex.MetadataIndexCheckpoint(IndexMetadata metadata)

Create the initial checkpoint record for the initial metadata index.

Parameters:

metadata -

MetadataIndex.MetadataIndexCheckpoint

public MetadataIndex.MetadataIndexCheckpoint(IndexMetadata metadata,
                                     Checkpoint oldCheckpoint)

Create the initial checkpoint record when the metadata index overflows onto a new backing store.

Parameters:

metadata -

Method Detail

getNextPartitionId

public int getNextPartitionId()

The immutable value of the nextPartitionId counter stored in the metadata record.

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class Checkpoint

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class Checkpoint

Throws:

IOException