Package jline.solvers.tr

Class TransformMethod

java.lang.Object

jline.solvers.tr.TransformMethod

public final class TransformMethod
extends Object

Method name table for TransformSolve, mirroring MATLAB matlab/src/solvers/TR/transform_method.m and python transform_driver.transform_method.

A method name names a model transformation: the strategy rewrites the model into subproblems, those are solved by a real solver, and the metrics are mapped back. An unrecognised token is an ERROR rather than a silent none, because a mistyped transform that quietly solved the untransformed model would report a plausible number for the wrong problem.

NOT every transformation in the tree is reachable here. The fork-join tag augmentation (FJTagTransform) is selected STRUCTURALLY, from the presence of a Fork or Join node, and never by a token; the MMT/HT fixed point keeps its own options.config.fork_join.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CHAINS	Collapse every chain onto a single class, then deaggregate through alpha.
static final String	LC	Load concealment (Birman-Kogan Algorithm 2), the first ITERATED strategy.
static final String	NONE	No transformation; the caller solves its own model directly.

Method Summary

Modifier and Type	Method	Description
static String	canonical(Object token)	Normalises a transform method name onto its canonical name.
static int	depth(SolverOptions options)	The nesting depth carried in options.config.transform_depth.
static TransformSolve.Strategy	strategy(String canonical)	The strategy implementing a canonical method name, or null for NONE.

Methods inherited from class java.lang.Object

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

Field Details

NONE

public static final String NONE

No transformation; the caller solves its own model directly.

See Also:

• Constant Field Values

CHAINS

public static final String CHAINS

Collapse every chain onto a single class, then deaggregate through alpha.

See Also:

• Constant Field Values

LC

public static final String LC

Load concealment (Birman-Kogan Algorithm 2), the first ITERATED strategy.

See Also:

• Constant Field Values

Method Details

canonical

public static String canonical(Object token)

Normalises a transform method name onto its canonical name.

Parameters:

token - the raw options.config.transform value, possibly null

Returns:

NONE or CHAINS

strategy

public static TransformSolve.Strategy strategy(String canonical)

The strategy implementing a canonical method name, or null for NONE.

depth

public static int depth(SolverOptions options)

The nesting depth carried in options.config.transform_depth.