@InterfaceAudience.Public @InterfaceStability.Stable public class JobID extends ID implements Comparable<ID>
job_200707121733_0003
, which represents the third job
running at the jobtracker started at 200707121733
.
Applications should never construct or parse JobID strings, but rather
use appropriate constructors or forName(String)
method.
TaskID
,
TaskAttemptID
Modifier and Type | Field and Description |
---|---|
protected static NumberFormat |
idFormat |
static String |
JOB |
static String |
JOBID_REGEX |
Constructor and Description |
---|
JobID() |
JobID(String jtIdentifier,
int id)
Constructs a JobID object
|
Modifier and Type | Method and Description |
---|---|
StringBuilder |
appendTo(StringBuilder builder)
Add the stuff after the "job" prefix to the given builder.
|
int |
compareTo(ID o)
Compare JobIds by first jtIdentifiers, then by job numbers
|
boolean |
equals(Object o) |
static JobID |
forName(String str)
Construct a JobId object from given string
|
String |
getJtIdentifier() |
int |
hashCode() |
void |
readFields(DataInput in)
Deserialize the fields of this object from
in . |
String |
toString() |
void |
write(DataOutput out)
Serialize the fields of this object to
out . |
public static final String JOB
public static final String JOBID_REGEX
protected static final NumberFormat idFormat
public JobID(String jtIdentifier, int id)
jtIdentifier
- jobTracker identifierid
- job numberpublic JobID()
public String getJtIdentifier()
public int compareTo(ID o)
compareTo
in interface Comparable<ID>
compareTo
in class ID
public StringBuilder appendTo(StringBuilder builder)
builder
- the builder to append topublic void readFields(DataInput in) throws IOException
Writable
in
.
For efficiency, implementations should attempt to re-use storage in the existing object where possible.
readFields
in interface Writable
readFields
in class ID
in
- DataInput
to deseriablize this object from.IOException
public void write(DataOutput out) throws IOException
Writable
out
.write
in interface Writable
write
in class ID
out
- DataOuput
to serialize this object into.IOException
public static JobID forName(String str) throws IllegalArgumentException
IllegalArgumentException
- if the given string is malformedCopyright © 2021 Apache Software Foundation. All rights reserved.