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java.lang.Objectorg.apache.hadoop.hbase.regionserver.wal.HLogKey
public class HLogKey
A Key for an entry in the change log. The log intermingles edits to many tables and rows, so each log entry identifies the appropriate table and row. Within a table and row, they're also sorted.
Some Transactional edits (START, COMMIT, ABORT) will not have an associated row.
| Constructor Summary | |
|---|---|
HLogKey()
Writable Consructor -- Do not use. |
|
HLogKey(byte[] encodedRegionName,
byte[] tablename,
long logSeqNum,
long now,
UUID clusterId)
Create the log key! We maintain the tablename mainly for debugging purposes. |
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| Method Summary | |
|---|---|
int |
compareTo(HLogKey o)
|
boolean |
equals(Object obj)
|
UUID |
getClusterId()
Get the id of the original cluster |
byte[] |
getEncodedRegionName()
|
long |
getLogSeqNum()
|
byte[] |
getTablename()
|
long |
getWriteTime()
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int |
hashCode()
|
void |
readFields(DataInput in)
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void |
setClusterId(UUID clusterId)
Set the cluster id of this key |
String |
toString()
|
Map<String,Object> |
toStringMap()
Produces a string map for this key. |
void |
write(DataOutput out)
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| Methods inherited from class java.lang.Object |
|---|
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public HLogKey()
public HLogKey(byte[] encodedRegionName,
byte[] tablename,
long logSeqNum,
long now,
UUID clusterId)
encodedRegionName - Encoded name of the region as returned by
HRegionInfo#getEncodedNameAsBytes().tablename - - name of tablelogSeqNum - - log sequence numbernow - Time at which this edit was written.clusterId - of the cluster (used in Replication)| Method Detail |
|---|
public byte[] getEncodedRegionName()
public byte[] getTablename()
public long getLogSeqNum()
public long getWriteTime()
public UUID getClusterId()
public void setClusterId(UUID clusterId)
clusterId - public String toString()
toString in class Objectpublic Map<String,Object> toStringMap()
public boolean equals(Object obj)
equals in class Objectpublic int hashCode()
hashCode in class Objectpublic int compareTo(HLogKey o)
compareTo in interface Comparable<HLogKey>
public void write(DataOutput out)
throws IOException
write in interface org.apache.hadoop.io.WritableIOException
public void readFields(DataInput in)
throws IOException
readFields in interface org.apache.hadoop.io.WritableIOException
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