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Class designer.Constraint 

java.lang.Object
   |
   +----designer.Constraint
public class Constraint
extends Object
implements Step, PlanItem
This is the main constraint checking object in the design problem solver. The Constraint object encapsulates a boolean logic operation and ties it to a failure event handler (not implemented). a failure event is generated upon a false result of the logic operation(not implemented). Constraints implement the Step and PlanItem interfaces and can also be executed at the Specialist level.

Constructor Index

o Constraint()
Default Constructor
o Constraint(String)
Constructor with name

Method Index

o execute()
perform the constraint check

PRE: _logicOp defined
POST: if successful return true
o getName()
o setLogicOp(LogicalOperation)
set the logical operation to be performed when this constraint is executed.

Constructors

o Constraint 
 public Constraint()
Default Constructor

o Constraint 
 public Constraint(String name)
Constructor with name

Methods

o setLogicOp 
 public boolean setLogicOp(LogicalOperation logOp)
set the logical operation to be performed when this constraint is executed.
PRE: logOp defined
POST: _logicOp == logOp

Parameters:
logOp - logical operation to be performed by this Constraint.
Returns:
true if successful false if failed.
o execute 
 public boolean execute()
perform the constraint check

PRE: _logicOp defined
POST: if successful return true

Returns:
true if successful false if failed.
o getName 
 public String getName()
Returns:
the String name of this object instance 
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