Class MinimumRedundancyConstraint

java.lang.Object

com.eqixiac.equinix.design.constraint.MinimumRedundancyConstraint

All Implemented Interfaces:

Constraint

public final class MinimumRedundancyConstraint
extends Object
implements Constraint

constraints.minimumRedundancy as an explicit rule on the metro set (see RedundancyTier): fewest metros, fewest distinct regions, and for N_PLUS_1 two metros sharing a region.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ID	The id.

Constructor Summary

Constructors

Constructor	Description
MinimumRedundancyConstraint()

Method Summary

Modifier and Type	Method	Description
ConstraintVerdict	check(MetroPortfolio portfolio, DesignContext context)	Checks a whole portfolio.
String	id()

Methods inherited from class Object

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

Methods inherited from interface Constraint

admits, usesCost

Modifier and Type	Method	Description
default boolean	admits(MetroFacts metro, DesignContext context)	Cheap per-metro pruning before portfolios are formed.
default boolean	usesCost()	Whether Constraint.check(MetroPortfolio, DesignContext) prices the portfolio through DesignContext.costModel().

Field Details

ID

public static final String ID

The id.

See Also:

• Constant Field Values

Constructor Details

MinimumRedundancyConstraint

public MinimumRedundancyConstraint()

Method Details

id

public String id()

Specified by:

id in interface Constraint

Returns:

a stable id, lower_snake_case (for example max_latency)

check

public ConstraintVerdict check(MetroPortfolio portfolio,
 DesignContext context)

Description copied from interface: Constraint

Checks a whole portfolio.

Specified by:

check in interface Constraint

Parameters:

portfolio - the candidate design

context - the facts of this run

Returns:

the verdict with its reason