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JCP Standard JSR331 “Java Constraint Programming API”. It is used for Modeling and Solving Constraint Satisfaction and Optimization Problems using Java and off-the-shelf Constraint/Linear Solvers
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package javax.constraints;
/*
* Used while posing constraint that potentially could be violated conflicting with other constraints.
* Constraints with a higher probabilities to succeed should prevail when conflicts occur.
*/
public enum Probability {
NEVER(0),
VERY_LOW(10),
LOW(25),
BELOW_MID(35),
MID(50),
ABOVE_MID(60),
HIGH(75),
VERY_HIGH(90),
ALWAYS(100);
private int value;
private Probability(int value) {
this.value = value;
}
public int getValue() {
return value;
}
public static Probability get(String id) {
if (id == null)
return NEVER;
String pattern = id.replaceAll("[\\s+_]","");
if (pattern.equalsIgnoreCase("VERYLOW"))
return VERY_LOW;
if (pattern.equalsIgnoreCase("LOW"))
return LOW;
if (pattern.equalsIgnoreCase("BELOWMID"))
return BELOW_MID;
if (pattern.equalsIgnoreCase("MID") || pattern.equalsIgnoreCase("Middle") || pattern.equalsIgnoreCase("Average"))
return MID;
if (pattern.equalsIgnoreCase("ABOVEMID"))
return ABOVE_MID;
if (pattern.equalsIgnoreCase("HIGH"))
return HIGH;
if (pattern.equalsIgnoreCase("VERYHIGH"))
return VERY_HIGH;
return NEVER;
}
}