Package org.apache.flink.runtime.jobmaster.slotpool

Enum PreferredAllocationRequestSlotMatchingStrategy

java.lang.Object

java.lang.Enum<PreferredAllocationRequestSlotMatchingStrategy>

org.apache.flink.runtime.jobmaster.slotpool.PreferredAllocationRequestSlotMatchingStrategy

All Implemented Interfaces:

Serializable, Comparable<PreferredAllocationRequestSlotMatchingStrategy>, RequestSlotMatchingStrategy

public enum PreferredAllocationRequestSlotMatchingStrategy
extends Enum<PreferredAllocationRequestSlotMatchingStrategy>
implements RequestSlotMatchingStrategy

RequestSlotMatchingStrategy that takes the preferred allocations into account. The strategy will try to fulfill the preferred allocations and if this is not possible, then it will fall back to SimpleRequestSlotMatchingStrategy.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.runtime.jobmaster.slotpool.RequestSlotMatchingStrategy

RequestSlotMatchingStrategy.RequestSlotMatch

Enum Constant Summary

Enum Constants

Enum Constant	Description
INSTANCE

Method Summary

Modifier and Type	Method	Description
Collection<RequestSlotMatchingStrategy.RequestSlotMatch>	matchRequestsAndSlots(Collection<? extends PhysicalSlot> slots, Collection<org.apache.flink.runtime.jobmaster.slotpool.PendingRequest> pendingRequests)	Match the given slots with the given collection of pending requests.
String	toString()
static PreferredAllocationRequestSlotMatchingStrategy	valueOf(String name)	Returns the enum constant of this type with the specified name.
static PreferredAllocationRequestSlotMatchingStrategy[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INSTANCE

public static final PreferredAllocationRequestSlotMatchingStrategy INSTANCE

Method Detail

values

public static PreferredAllocationRequestSlotMatchingStrategy[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (PreferredAllocationRequestSlotMatchingStrategy c : PreferredAllocationRequestSlotMatchingStrategy.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static PreferredAllocationRequestSlotMatchingStrategy valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

matchRequestsAndSlots

public Collection<RequestSlotMatchingStrategy.RequestSlotMatch> matchRequestsAndSlots(Collection<? extends PhysicalSlot> slots,
                                                                                      Collection<org.apache.flink.runtime.jobmaster.slotpool.PendingRequest> pendingRequests)

Description copied from interface: RequestSlotMatchingStrategy

Match the given slots with the given collection of pending requests.

Specified by:

matchRequestsAndSlots in interface RequestSlotMatchingStrategy

Parameters:

slots - slots to match

pendingRequests - slot requests to match

Returns:

resulting matches of this operation

toString

public String toString()

Overrides:

toString in class Enum<PreferredAllocationRequestSlotMatchingStrategy>