public final boolean isSubPatternOf(Pattern frequentPattern) {
int[] otherPattern = frequentPattern.getPattern();
int otherLength = frequentPattern.length();
if (this.length() > frequentPattern.length()) {
return false;
}
int i = 0;
int otherI = 0;
while (i < length && otherI < otherLength) {
if (otherPattern[otherI] == pattern[i]) {
otherI++;
i++;
} else if (otherPattern[otherI] < pattern[i]) {
otherI++;
} else {
return false;
}
}
return otherI != otherLength || i == length;
}
