Conservation problem modifier class

This super-class is used to represent prototypes that in turn are used to modify a ProjectProblem object. Specifically, the Constraint, Decision, Objective, and Target prototypes inherit from this class. Only experts should use the fields and methods for this class directly.

See also

Other classes: Constraint-class, Decision-class, MultiObjApproach-class, MultiObjProjectProblem-class, Objective-class, OptimizationProblem-class, ProjectProblem-class, Solver-class, Target-class, Weight-class

Public fields

name

character value.

data

list containing data.

internal

list containing internal computed values.

Methods

Public methods

• ProjectModifier$print()

• ProjectModifier$show()

• ProjectModifier$repr()

• ProjectModifier$get_data()

• ProjectModifier$set_data()

• ProjectModifier$get_internal()

• ProjectModifier$set_internal()

• ProjectModifier$calculate()

• ProjectModifier$apply()

• ProjectModifier$clone()

---

ProjectModifier$print()

Print information about the object.

Usage

ProjectModifier$print()

Returns

None.

---

ProjectModifier$show()

Print information about the object.

Usage

ProjectModifier$show()

Returns

None.

---

ProjectModifier$repr()

Generate a character representation of the object.

Usage

ProjectModifier$repr()

Returns

A character value.

---

ProjectModifier$get_data()

Get values stored in the data field.

Usage

ProjectModifier$get_data(x)

Arguments

x

character name of data.

Returns

An object. If the data field does not contain an object associated with the argument to x, then a new_waiver() object is returned. Set values stored in the data field. Note that this method will overwrite existing data.

---

ProjectModifier$set_data()

Usage

ProjectModifier$set_data(x, value)

Arguments

x

character name of data.

value

Object to store.

Returns

Invisible TRUE.

---

ProjectModifier$get_internal()

Get values stored in the internal field.

Usage

ProjectModifier$get_internal(x)

Arguments

x

character name of data.

Returns

An object. If the internal field does not contain an object associated with the argument to x, then a new_waiver() object is returned.

---

ProjectModifier$set_internal()

Set values stored in the internal field. Note that this method will overwrite existing data.

Usage

ProjectModifier$set_internal(x, value)

Arguments

x

character name of data.

value

Object to store.

Returns

An object. If the internal field does not contain an object associated with the argument to x, then a new_waiver() object is returned.

---

ProjectModifier$calculate()

Perform computations that need to be completed before applying the object.

Usage

ProjectModifier$calculate(x, y)

Arguments

x

new_optimization_problem() object.

y

problem() object.

Returns

Invisible TRUE.

---

ProjectModifier$apply()

Update an optimization problem formulation.

Usage

ProjectModifier$apply(x)

Arguments

x

new_optimization_problem() object.

Returns

Invisible TRUE.

---

ProjectModifier$clone()

The objects of this class are cloneable with this method.

Usage

ProjectModifier$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.