@InterfaceAudience.Public @InterfaceStability.Stable public abstract class ID extends Object implements WritableComparable<ID>
JobID, 
 TaskID and TaskAttemptID.JobID, 
TaskID, 
TaskAttemptID| 修飾子 | コンストラクタと説明 | 
|---|---|
| protected  | ID() | 
|   | ID(int id)constructs an ID object from the given int | 
| 修飾子とタイプ | メソッドと説明 | 
|---|---|
| int | compareTo(ID that)Compare IDs by associated numbers | 
| boolean | equals(Object o) | 
| int | getId()returns the int which represents the identifier | 
| 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 int getId()
public int compareTo(ID that)
compareTo インタフェース内 Comparable<ID>public void readFields(DataInput in) throws IOException
Writablein.  
 
 For efficiency, implementations should attempt to re-use storage in the existing object where possible.
readFields インタフェース内 Writablein - DataInput to deseriablize this object from.IOExceptionpublic void write(DataOutput out) throws IOException
Writableout.write インタフェース内 Writableout - DataOuput to serialize this object into.IOExceptionCopyright © 2016 Apache Software Foundation. All rights reserved.