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java.lang.Objectec.Individual
ec.rule.RuleIndividual
RuleIndividual is an Individual with an array of RuleSets, each of which is a set of Rules. RuleIndividuals belong to some subclass of RuleSpecies (or just RuleSpecies itself).
RuleIndividuals really have basically one parameter: the number of RuleSets to use. This is determined by the num-rulesets parameter.
From ec.Individual:
In addition to serialization for checkpointing, Individuals may read and write themselves to streams in three ways.
In general, the various readers and writers do three things: they tell the Fitness to read/write itself, they read/write the evaluated flag, and they read/write the Rulesets. If you add instance variables to a RuleIndividual or subclass, you'll need to read/write those variables as well.
Parameters
base.num-rulesets int >= 1 |
(number of rulesets used) |
base.ruleset.n Classname, subclass of or = ec.rule.RuleSet |
(class of ruleset n) |
Parameter bases
base.ruleset.n | RuleSet n |
Default Base
rule.individual
Field Summary | |
static java.lang.String |
EVALUATED_PREAMBLE
|
static java.lang.String |
P_INDIVIDUAL
|
static java.lang.String |
P_NUMRULESETS
|
static java.lang.String |
P_RULESET
|
RuleSet[] |
rulesets
The individual's rulesets. |
Fields inherited from class ec.Individual |
evaluated, fitness, species |
Constructor Summary | |
RuleIndividual()
|
Method Summary | |
java.lang.Object |
clone()
Creates a new individual cloned from a prototype, and suitable to begin use in its own evolutionary context. |
Parameter |
defaultBase()
Returns the default base for this prototype. |
boolean |
equals(java.lang.Object ind)
Returns true if I am genetically "equal" to ind. |
int |
hashCode()
Returns a hashcode for the individual, such that individuals which are equals(...) each other always return the same hash code. |
void |
parseGenotype(EvolutionState state,
java.io.LineNumberReader reader)
This method is used only by the default version of readIndividual(state,reader), and it is intended to be overridden to parse in that part of the individual that was outputted in the genotypeToString() method. |
void |
postprocessIndividual(EvolutionState state,
int thread)
Called by pipelines after they've modified the individual and it might need to be "fixed" -- basically a hook for you to override. |
void |
preprocessIndividual(EvolutionState state,
int thread)
Called by pipelines before they've modified the individual and it might need to be "fixed" -- basically a hook for you to override. |
void |
printIndividual(EvolutionState state,
int log,
int verbosity)
Should print the individual in a way that can be read by computer, including its fitness, using state.output.println(...,verbosity,log) You can get fitness to print itself at the appropriate time by calling fitness.printFitness(state,log,verbosity); |
void |
printIndividual(EvolutionState state,
java.io.PrintWriter writer)
Should print the individual in a way that can be read by computer, including its fitness. |
void |
printIndividualForHumans(EvolutionState state,
int log,
int verbosity)
Should print the individual out in a pleasing way for humans, including its fitness, using state.output.println(...,verbosity,log) You can get fitness to print itself at the appropriate time by calling fitness.printFitnessForHumans(state,log,verbosity); |
void |
readGenotype(EvolutionState state,
java.io.DataInput dataInput)
|
void |
reset(EvolutionState state,
int thread)
|
void |
setup(EvolutionState state,
Parameter base)
Sets up the object by reading it from the parameters stored in state, built off of the parameter base base. |
long |
size()
Returns the "size" of the individual. |
void |
writeGenotype(EvolutionState state,
java.io.DataOutput dataOutput)
|
Methods inherited from class ec.Individual |
genotypeToString, genotypeToStringForHumans, readIndividual, readIndividual, toString, writeIndividual |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
public static final java.lang.String P_RULESET
public static final java.lang.String P_NUMRULESETS
public static final java.lang.String P_INDIVIDUAL
public static final java.lang.String EVALUATED_PREAMBLE
public RuleSet[] rulesets
Constructor Detail |
public RuleIndividual()
Method Detail |
public Parameter defaultBase()
Prototype
public java.lang.Object clone()
Prototype
The question here is whether or not this means to perform a "deep" or "light" ("shallow") clone, or something in-between. You may need to deep-clone parts of your object rather than simply copying their references, depending on the situation:
Implementations.
public Object protoClone()
{
return super.clone();
}
public Object protoClone()
{
myobj = (MyObject) (super.clone());
// put your deep-cloning code here...
// ...you should use protoClone and not
// protoCloneSimple to clone subordinate objects...
return myobj;
}
public Object protoClone()
{
MyObject myobj = (MyObject)(super.protoClone());
// put your deep-cloning code here...
// ...you should use protoClone and not
// protoCloneSimple to clone subordinate objects...
return myobj;
}
If you know that your superclasses will never change their protoClone() implementations, you might try inlining them in your overridden protoClone() method. But this is dangerous (though it yields a small net increase).
In general, you want to keep your deep cloning to an absolute minimum, so that you don't have to call protoClone() but one time.
The approach taken here is the fastest that I am aware of while still permitting objects to be specified at runtime from a parameter file. It would be faster to use the "new" operator; but that would require hard-coding that we can't do. Although using java.lang.Object.clone() entails an extra layer that deals with stripping away the "protected" keyword and also wrapping the exception handling (which is a BIG hit, about three times as slow as using "new"), it's still MUCH faster than using java.lang.Class.newInstance(), and also much faster than rolling our own Clone() method.
clone
in interface Prototype
clone
in class Individual
public void preprocessIndividual(EvolutionState state, int thread)
public void postprocessIndividual(EvolutionState state, int thread)
public boolean equals(java.lang.Object ind)
Individual
equals
in class Individual
public int hashCode()
Individual
hashCode
in class Individual
public void setup(EvolutionState state, Parameter base)
Prototype
For prototypes, setup(...) is typically called once for the prototype instance; cloned instances do not receive the setup(...) call. setup(...) may be called more than once; the only guarantee is that it will get called at least once on an instance or some "parent" object from which it was ultimately cloned.
setup
in interface Prototype
setup
in class Individual
public void printIndividualForHumans(EvolutionState state, int log, int verbosity)
Individual
The default form of this method simply prints out whether or not the individual has been evaluated, its fitness, and then Individual.genotypeToStringForHumans(). Feel free to override this to produce more sophisticated behavior.
printIndividualForHumans
in class Individual
public void printIndividual(EvolutionState state, int log, int verbosity)
Individual
The default form of this method simply prints out whether or not the individual has been evaluated, its fitness, and then Individual.genotypeToString(). Feel free to override this to produce more sophisticated behavior.
printIndividual
in class Individual
public void printIndividual(EvolutionState state, java.io.PrintWriter writer)
Individual
The default form of this method simply prints out whether or not the individual has been evaluated, its fitness, and then Individual.genotypeToString(). Feel free to override this to produce more sophisticated behavior.
printIndividual
in class Individual
public void writeGenotype(EvolutionState state, java.io.DataOutput dataOutput) throws java.io.IOException
writeGenotype
in class Individual
java.io.IOException
public void readGenotype(EvolutionState state, java.io.DataInput dataInput) throws java.io.IOException
readGenotype
in class Individual
java.io.IOException
public void parseGenotype(EvolutionState state, java.io.LineNumberReader reader) throws java.io.IOException
Individual
parseGenotype
in class Individual
java.io.IOException
public long size()
Individual
size
in class Individual
public void reset(EvolutionState state, int thread)
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