org.apache.hadoop.hive.ql

Class QueryPlan

java.lang.Object

org.apache.hadoop.hive.ql.QueryPlan

All Implemented Interfaces:

Serializable

public class QueryPlan
extends Object
implements Serializable

QueryPlan can be serialized to disk so that we can restart/resume the progress of it in the future, either within or outside of the current jvm.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected LineageInfo	linfo Lineage information for the query.

Constructor Summary

Constructors

Constructor and Description
QueryPlan()
QueryPlan(String queryString, BaseSemanticAnalyzer sem, Long startTime, String queryId, String operationName)

Method Summary

Methods

Modifier and Type	Method and Description
ColumnAccessInfo	getColumnAccessInfo() Gets the column access information.
Map<String,Map<String,Long>>	getCounters()
Set<String>	getDone()
FetchTask	getFetchTask()
HashMap<String,String>	getIdToTableNameMap()
HashSet<ReadEntity>	getInputs()
String	getJSONKeyValue(Object key, Object value)
String	getJSONMap(Map map)
String	getJSONQuery(Query query)
String	getJSONValue(Object value)
LineageInfo	getLineageInfo() Gets the lineage information.
String	getOperationName()
HashSet<WriteEntity>	getOutputs()
Query	getQuery()
String	getQueryId()
Query	getQueryPlan()
QueryProperties	getQueryProperties()
Long	getQueryStartTime()
String	getQueryStr()
String	getQueryString()
List<ReducerTimeStatsPerJob>	getReducerTimeStatsPerJobList()
ArrayList<Task<? extends Serializable>>	getRootTasks()
Set<String>	getStarted()
TableAccessInfo	getTableAccessInfo() Gets the table access information.
boolean	isExplain()
boolean	isForExplain()
static String	makeQueryId()
void	setColumnAccessInfo(ColumnAccessInfo columnAccessInfo) Sets the column access information.
void	setDone()
void	setFetchTask(FetchTask fetchTask)
void	setIdToTableNameMap(HashMap<String,String> idToTableNameMap)
void	setInputs(HashSet<ReadEntity> inputs)
void	setLineageInfo(LineageInfo linfo) Sets the lineage information.
void	setOutputs(HashSet<WriteEntity> outputs)
void	setQuery(Query query)
void	setQueryId(String queryId)
void	setQueryStartTime(Long queryStartTime)
void	setQueryString(String queryString)
void	setRootTasks(ArrayList<Task<? extends Serializable>> rootTasks)
void	setStarted()
void	setTableAccessInfo(TableAccessInfo tableAccessInfo) Sets the table access information.
String	toBinaryString()
String	toString()
String	toThriftJSONString()

Methods inherited from class java.lang.Object

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

Field Detail

linfo

protected LineageInfo linfo

Lineage information for the query.

Constructor Detail

QueryPlan

public QueryPlan()

QueryPlan

public QueryPlan(String queryString,
         BaseSemanticAnalyzer sem,
         Long startTime,
         String queryId,
         String operationName)

Method Detail

getQueryStr

public String getQueryStr()

getQueryId

public String getQueryId()

makeQueryId

public static String makeQueryId()

getQueryPlan

public Query getQueryPlan()
                   throws IOException

Throws:

IOException

getJSONValue

public String getJSONValue(Object value)

getJSONKeyValue

public String getJSONKeyValue(Object key,
                     Object value)

getJSONMap

public String getJSONMap(Map map)

getJSONQuery

public String getJSONQuery(Query query)

isExplain

public boolean isExplain()

toString

public String toString()

Overrides:

toString in class Object

toThriftJSONString

public String toThriftJSONString()
                          throws IOException

Throws:

IOException

toBinaryString

public String toBinaryString()
                      throws IOException

Throws:

IOException

setStarted

public void setStarted()

setDone

public void setDone()

getStarted

public Set<String> getStarted()

getDone

public Set<String> getDone()

getRootTasks

public ArrayList<Task<? extends Serializable>> getRootTasks()

setRootTasks

public void setRootTasks(ArrayList<Task<? extends Serializable>> rootTasks)

isForExplain

public boolean isForExplain()

getFetchTask

public FetchTask getFetchTask()

setFetchTask

public void setFetchTask(FetchTask fetchTask)

getInputs

public HashSet<ReadEntity> getInputs()

setInputs

public void setInputs(HashSet<ReadEntity> inputs)

getOutputs

public HashSet<WriteEntity> getOutputs()

setOutputs

public void setOutputs(HashSet<WriteEntity> outputs)

getIdToTableNameMap

public HashMap<String,String> getIdToTableNameMap()

setIdToTableNameMap

public void setIdToTableNameMap(HashMap<String,String> idToTableNameMap)

getQueryString

public String getQueryString()

setQueryString

public void setQueryString(String queryString)

getQuery

public Query getQuery()

getReducerTimeStatsPerJobList

public List<ReducerTimeStatsPerJob> getReducerTimeStatsPerJobList()

setQuery

public void setQuery(Query query)

getCounters

public Map<String,Map<String,Long>> getCounters()

setQueryId

public void setQueryId(String queryId)

getLineageInfo

public LineageInfo getLineageInfo()

Gets the lineage information.

Returns:

LineageInfo associated with the query.

setLineageInfo

public void setLineageInfo(LineageInfo linfo)

Sets the lineage information.

Parameters:

linfo - The LineageInfo structure that is set in the optimization phase.

getTableAccessInfo

public TableAccessInfo getTableAccessInfo()

Gets the table access information.

Returns:

TableAccessInfo associated with the query.

setTableAccessInfo

public void setTableAccessInfo(TableAccessInfo tableAccessInfo)

Sets the table access information.

Parameters:

tableAccessInfo - The TableAccessInfo structure that is set right before the optimization phase.

getColumnAccessInfo

public ColumnAccessInfo getColumnAccessInfo()

Gets the column access information.

Returns:

ColumnAccessInfo associated with the query.

setColumnAccessInfo

public void setColumnAccessInfo(ColumnAccessInfo columnAccessInfo)

Sets the column access information.

Parameters:

columnAccessInfo - The ColumnAccessInfo structure that is set immediately after the optimization phase.

getQueryProperties

public QueryProperties getQueryProperties()

getQueryStartTime

public Long getQueryStartTime()

setQueryStartTime

public void setQueryStartTime(Long queryStartTime)

getOperationName

public String getOperationName()