org.apache.lens.server.api.query

Class ExplainQueryContext

java.lang.Object

org.apache.lens.server.api.query.AbstractQueryContext

org.apache.lens.server.api.query.ExplainQueryContext

All Implemented Interfaces:

Serializable

public class ExplainQueryContext
extends AbstractQueryContext

The class ExplainQueryContext

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lens.server.api.query.AbstractQueryContext

AbstractQueryContext.DriverEstimateRunnable

Constructor Summary

Constructors

Constructor and Description
ExplainQueryContext(String requestId, String query, String user, LensConf conf, org.apache.hadoop.conf.Configuration qconf, Collection<LensDriver> drivers) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
String	getLogHandle() Get handle of the query for logging purposes

Methods inherited from class org.apache.lens.server.api.query.AbstractQueryContext

clearTransientStateAfterCompleted, clearTransientStateAfterLaunch, estimateCostForDrivers, getConf, getDatabase, getDriverConf, getDriverContext, getDriverEstimateRunnables, getDriverQuery, getDriverQueryCost, getDriverRewriteError, getDriverRewriterPlan, getFinalDriverQuery, getHiveConf, getLensConf, getLensSessionIdentifier, getPhase1RewrittenQuery, getQueue, getSelectedDriver, getSelectedDriverConf, getSelectedDriverQuery, getSelectedDriverQueryCost, getSelectedDriverQueryPlan, getSubmittedUser, getTableWeights, getUserQuery, initTransientState, isDriverQueryExplicitlySet, isOlapQuery, setConf, setDriverContext, setDriverCost, setDriverQueries, setDriverQuery, setDriverRewriteError, setFinalDriverQuery, setLensSessionIdentifier, setOlapQuery, setPhase1RewrittenQuery, setSelectedDriver, setSelectedDriverQuery, setSelectedDriverQueryCost

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExplainQueryContext

public ExplainQueryContext(String requestId,
                   String query,
                   String user,
                   LensConf conf,
                   org.apache.hadoop.conf.Configuration qconf,
                   Collection<LensDriver> drivers)

Constructor. Only needs user query and conf.

Parameters:

query -

qconf -

Method Detail

getLogHandle

public String getLogHandle()

Description copied from class: AbstractQueryContext

Get handle of the query for logging purposes

Specified by:

getLogHandle in class AbstractQueryContext

Returns: