org.apache.lens.server.query.constraint

Class RetryPolicyToConstraingAdapter

java.lang.Object

org.apache.lens.server.query.constraint.RetryPolicyToConstraingAdapter

All Implemented Interfaces:

QueryLaunchingConstraint

public class RetryPolicyToConstraingAdapter
extends Object
implements QueryLaunchingConstraint

Constructor Summary

Constructors

Constructor and Description
RetryPolicyToConstraingAdapter(BackOffRetryHandler<QueryContext> constraint)

Method Summary

Modifier and Type	Method and Description
String	allowsLaunchOf(QueryContext candidateQuery, EstimatedImmutableQueryCollection launchedQueries) Returns whether this constraint allows candidate query to be launched.
boolean	equals(Object o)
BackOffRetryHandler<QueryContext>	getConstraint()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

RetryPolicyToConstraingAdapter

@ConstructorProperties(value="constraint")
 @Generated(value="lombok")
public RetryPolicyToConstraingAdapter(BackOffRetryHandler<QueryContext> constraint)

Method Detail

allowsLaunchOf

public String allowsLaunchOf(QueryContext candidateQuery,
                             EstimatedImmutableQueryCollection launchedQueries)

Description copied from interface: QueryLaunchingConstraint

Returns whether this constraint allows candidate query to be launched.

Specified by:

allowsLaunchOf in interface QueryLaunchingConstraint

Parameters:

candidateQuery - The query which is the next candidate to be launched.

launchedQueries - Current launched queries

Returns:

null if allowed to launch, otherwise a String containing the reason to block launch

getConstraint

@Generated(value="lombok")
public BackOffRetryHandler<QueryContext> getConstraint()

equals

@Generated(value="lombok")
public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

@Generated(value="lombok")
public int hashCode()

Overrides:

hashCode in class Object

toString

@Generated(value="lombok")
public String toString()

Overrides:

toString in class Object