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This implementation class derives from the abstract implementation class
IlcSearchLimitI. Instances of IlcMTSearchLimitI
are implementation objects of search limits for multithreaded search.
Handle and Implementation Classes
A search limit is an object in Concert Technology. Like other Concert
Technology entities, a search limit is implemented by means of two classes:
a handle class and an implementation class. In other words, an instance of
the class IlcMTSearchLimit (a handle) contains a data member
(the handle pointer) that points to an instance of the class
IlcMTSearchLimitI (its implementation object).
Purpose of a Search Limit
A search limit is used to prune part of the search tree. The member
function check indicates whether the limit has been
reached.
A search limit has its own life cycle:
duplicate.
init is called automatically by Concert Technology code.Implementing Your Own Search Limit
You implement a search limit much the same way as you implement a search selector.
The function IlcMTMinimizeVar returns an
instance of IlcMTSearchSelector. In the documentation of that
function, we describe part of its implementation details. From that
description, you see how a search selector is used and what you must include
in your own implementation of a search selector.
To get an idea of how to implement your own search limit, see
IlcMTMinimizeVar.
See Also:
IlcMTSearchLimitI, IlcIntVarRef
| Constructor Summary | |
|---|---|
public | IlcMTSearchLimitI(IloSolver s, IlcBool duplicate) |
| Method Summary | |
|---|---|
public void | addFloatVar(IlcFloatVar v, const char * name) |
public void | addIntVar(IlcIntVar v, const char * name) |
public IlcFloatVar | getFloatVar(IloSolver s, IlcFloatVarRef ref) const |
public IlcFloatVarRef | getFloatVarRef(const char *) const |
public IlcIntVar | getIntVar(IloSolver s, IlcIntVarRef ref) const |
public IlcIntVarRef | getIntVarRef(const char * name) const |
Inherited Methods from IlcSearchLimitI |
|---|
check, duplicateLimit, init |
| Constructor Detail |
|---|
This constructor creates a search limit for multithreaded search. The parameter
duplicate indicates whether the object is an internal copy used by the solver
(duplicate = IlcTrue), or whether it is just a template.
| Method Detail |
|---|
This member function stores the constrained floating-point variable v under
the name indicated by name.
This member function stores the constrained integer variable v under the name
indicated by name.
This member function retrieves the variable stored by the solver s under
the name corresponding to the reference ref.
This member function retrieves all the constrained floating-point variables stored under
the name indicated by name.
This member function retrieves the variable stored by the solver s under the
name corresponding to the reference ref.
This member function retrieves all the constrained integer variables stored under the name
indicated by name.