/**
* Deletes a key/value pair from the map.
*
* @param key an <code>long</code> value
* @return an <code>Object</code> value or (long)0 if no such mapping exists.
*/
public V remove(long key) {
V prev = null;
int index = index(key);
if (index >= 0) {
prev = _values[index];
removeAt(index); // clear key,state; adjust size
}
return prev;
}
/**
* Retains only those entries in the map for which the procedure returns a true value.
*
* @param procedure determines which entries to keep
* @return true if the map was modified.
*/
public boolean retainEntries(TLongObjectProcedure<V> procedure) {
boolean modified = false;
byte[] states = _states;
long[] keys = _set;
V[] values = _values;
// Temporarily disable compaction. This is a fix for bug #1738760
tempDisableAutoCompaction();
try {
for (int i = keys.length; i-- > 0; ) {
if (states[i] == FULL && !procedure.execute(keys[i], values[i])) {
removeAt(i);
modified = true;
}
}
} finally {
reenableAutoCompaction(true);
}
return modified;
}