/** Counts the object, increasing its total count by 1. */
public int count(T obj) {
int count = counts.get(obj);
count++;
counts.put(obj, count);
sum++;
return count;
}
/**
* Adds the counts from the provided {@code Counter} to the current counts, adding new elements as
* needed.
*/
public void add(Counter<? extends T> counter) {
for (Map.Entry<? extends T, Integer> e : counter) {
T t = e.getKey();
Integer cur = counts.get(t);
counts.put(t, (cur == null) ? e.getValue() : cur + e.getValue());
}
}
/**
* Counts the object, increasing its total count by the specified positive amount.
*
* @param count a positive value for the number of times the object occurred
* @throws IllegalArgumentException if {@code count} is not a positive value.
*/
public int count(T obj, int count) {
if (count < 1) throw new IllegalArgumentException("Count must be positive: " + count);
int oldCount = counts.get(obj);
int newCount = count + oldCount;
counts.put(obj, newCount);
sum += count;
return newCount;
}
public boolean equals(Object o) {
if (o instanceof Counter) {
Counter<?> c = (Counter<?>) o;
if (counts.size() != c.size() || sum != c.sum()) return false;
for (Map.Entry<?, Integer> e : c) {
int i = counts.get(e.getKey());
if (i != e.getValue()) return false;
}
return true;
}
return false;
}
/**
* Returns the index associated to the attribute name, or -1 if no attribute has the name.
*
* @param name The name to lookup
* @return The index, or -1 if no attribute has the name
*/
public int getAttributeIndex(String name) {
return nameToIndex.get(name);
}
/** Returns the number of times the specified object has been seen by this counter. */
public int getCount(T obj) {
return counts.get(obj);
}
/**
* Returns the value of the specified property.
*
* @param prop
* @return value of property
*/
public int getProperty(WindowProperty prop) {
return properties.get(prop);
}