Created
November 15, 2013 22:38
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the_fugly.java
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static class TObjectDoubleHashMapNoDouble<K> extends TObjectDoubleHashMap<K> { | |
public TObjectDoubleHashMapNoDouble(int initialSize, float loadFactor) { | |
super(initialSize, loadFactor); | |
} | |
public double put(K key, double value) { | |
int index = insertKey(key); | |
double previous = 0.0; | |
boolean isNewMapping = true; | |
if (index < 0) { | |
index = -index - 1; | |
previous = _values[index]; | |
isNewMapping = false; | |
} | |
_values[index] = value; | |
if (isNewMapping) { | |
postInsertHook2(consumeFreeSlot); | |
} | |
return previous; | |
} | |
protected final void postInsertHook2( boolean usedFreeSlot ) { | |
if ( usedFreeSlot ) { | |
_free--; | |
} | |
// rehash whenever we exhaust the available space in the table | |
if ( ++_size > _maxSize || _free == 0 ) { | |
// choose a new capacity suited to the new state of the table | |
// if we've grown beyond our maximum size, double capacity; | |
// if we've exhausted the free spots, rehash to the same capacity, | |
// which will free up any stale removed slots for reuse. | |
int newCapacity = _size > _maxSize ? gnu.trove.impl.PrimeFinder.nextPrime( (int)(capacity() * 1.2) + 10 ) : capacity(); | |
rehash( newCapacity ); | |
computeMaxSize( capacity() ); | |
} | |
} | |
} |
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