Package org.apache.hadoop.yarn.server.timelineservice.storage.flow

Class FlowRunRowKeyPrefix

java.lang.Object

org.apache.hadoop.yarn.server.timelineservice.storage.flow.FlowRunRowKey

org.apache.hadoop.yarn.server.timelineservice.storage.flow.FlowRunRowKeyPrefix

All Implemented Interfaces:

RowKeyPrefix<FlowRunRowKey>

public class FlowRunRowKeyPrefix
extends FlowRunRowKey
implements RowKeyPrefix<FlowRunRowKey>

Represents a partial rowkey (without the flowRunId) for the flow run table.

Constructor Summary

Constructors

Constructor	Description
FlowRunRowKeyPrefix(String clusterId, String userId, String flowName)	Constructs a row key prefix for the flow run table as follows: clusterId!userI!flowName!.

Method Summary

Modifier and Type	Method	Description
byte[]	getRowKeyPrefix()	Create a row key prefix, meaning a partial rowkey that can be used in range scans.

Methods inherited from class org.apache.hadoop.yarn.server.timelineservice.storage.flow.FlowRunRowKey

getClusterId, getFlowName, getFlowRunId, getRowKey, getRowKeyAsString, getUserId, parseRowKey, parseRowKeyFromString, toString

Methods inherited from class java.lang.Object

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

Constructor Details

FlowRunRowKeyPrefix

public FlowRunRowKeyPrefix(String clusterId,
 String userId,
 String flowName)

Constructs a row key prefix for the flow run table as follows: clusterId!userI!flowName!.

Parameters:

clusterId - identifying the cluster

userId - identifying the user

flowName - identifying the flow

Method Details

getRowKeyPrefix

public byte[] getRowKeyPrefix()

Description copied from interface: RowKeyPrefix

Create a row key prefix, meaning a partial rowkey that can be used in range scans. Which fields are included in the prefix will depend on the constructor of the specific instance that was used. Output depends on which constructor was used.

Specified by:

getRowKeyPrefix in interface RowKeyPrefix<FlowRunRowKey>

Returns:

a prefix of the following form fist!second!...!last!