org.apache.hadoop.hive.ql.exec
Class CopyTask

java.lang.Object
  org.apache.hadoop.hive.ql.exec.Task<CopyWork>
      org.apache.hadoop.hive.ql.exec.CopyTask

All Implemented Interfaces:

Serializable, Node

public class CopyTask
extends Task<CopyWork>
implements Serializable

CopyTask implementation.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.exec.Task

Task.FeedType

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.exec.Task

BACKUP_COMMON_JOIN, COMMON_JOIN, CONVERTED_MAPJOIN, CONVERTED_MAPJOIN_LOCAL, CONVERTED_SORTMERGEJOIN, HINTED_MAPJOIN, HINTED_MAPJOIN_LOCAL, MAPJOIN_ONLY_NOBACKUP, NO_TAG, taskCounters, taskHandle

Constructor Summary

CopyTask()

Method Summary

int	execute(DriverContext driverContext) This method is overridden in each Task.
String	getName() Gets the name of the node.
org.apache.hadoop.hive.ql.plan.api.StageType	getType() Should be overridden to return the type of the specific task among the types in StageType.

Methods inherited from class org.apache.hadoop.hive.ql.exec.Task

addDependentTask, done, equals, executeTask, getAndInitBackupTask, getBackupChildrenTasks, getBackupTask, getChildren, getChildTasks, getCounters, getDependentTasks, getDriverContext, getFeedSubscribers, getId, getInitialized, getJobID, getParentTasks, getQueryPlan, getQueued, getReducer, getResultSchema, getTaskHandle, getTaskTag, getTopOperators, getWork, hashCode, hasReduce, ifRetryCmdWhenFail, initialize, isLocalMode, isMapRedLocalTask, isMapRedTask, isRootTask, isRunnable, removeDependentTask, removeFromChildrenTasks, requireLock, setBackupChildrenTasks, setBackupTask, setChildTasks, setConsole, setDone, setFeedSubscribers, setId, setInitialized, setLocalMode, setParentTasks, setQueryPlan, setQueued, setRetryCmdWhenFail, setRootTask, setStarted, setTaskTag, setWork, shutdown, started, subscribeFeed, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CopyTask

public CopyTask()

Method Detail

execute

public int execute(DriverContext driverContext)

Description copied from class: Task

This method is overridden in each Task. TODO execute should return a TaskHandle.

Returns:

status of executing the task

getType

public org.apache.hadoop.hive.ql.plan.api.StageType getType()

Description copied from class: Task

Should be overridden to return the type of the specific task among the types in StageType.

Specified by:

getType in class Task<CopyWork>

Returns:

StageType.* or null if not overridden

getName

public String getName()

Description copied from interface: Node

Gets the name of the node. This is used in the rule dispatchers.

Specified by:

getName in interface Node

Returns:

String