public Hypothesis subsume(Hypothesis otherHypothesis) {
LinkedList<Literal> newLiterals = new LinkedList<Literal>();
for (Literal otherLiteral : otherHypothesis.literalMap.values()) {
Literal correspondingLiteral = literalMap.get(otherLiteral.getAttribute());
if (correspondingLiteral == null) {
continue;
}
if (otherLiteral.equals(correspondingLiteral)) {
newLiterals.add(otherLiteral);
continue;
}
if (otherLiteral.contradicts(literalMap.get(otherLiteral.getAttribute()))) {
return null;
}
}
return new Hypothesis(newLiterals);
}
@Override
public boolean equals(Object object) {
if (object == null) {
return false;
}
if (getClass() != object.getClass()) {
return false;
}
Hypothesis otherHypothesis = (Hypothesis) object;
for (Literal literal : getLiterals()) {
if (!literal.equals(otherHypothesis.getLiteral(literal.getAttribute()))) {
return false;
}
}
return true;
}
public Hypothesis(Collection<Literal> literals) {
this();
for (Literal literal : literals) {
literalMap.put(literal.getAttribute(), literal);
}
}