/**
* Retrieves the value for <tt>key</tt>
*
* @param key an <code>Object</code> value
* @return the value of <tt>key</tt> or null if no such mapping exists.
*/
public Short get(Short key) {
short k = unwrapKey(key);
short v = _map.get(k);
// 0 may be a false positive since primitive maps
// cannot return null, so we have to do an extra
// check here.
if (v == 0) {
return _map.containsKey(k) ? wrapValue(v) : null;
} else {
return wrapValue(v);
}
}
/**
* Clones the underlying trove collection and returns the clone wrapped in a new decorator
* instance. This is a shallow clone except where primitives are concerned.
*
* @return a copy of the receiver
*/
public TShortShortHashMapDecorator clone() {
try {
TShortShortHashMapDecorator copy = (TShortShortHashMapDecorator) super.clone();
copy._map = (TShortShortHashMap) _map.clone();
return copy;
} catch (CloneNotSupportedException e) {
// assert(false);
throw new InternalError(); // we are cloneable, so this does not happen
}
}
/**
* Inserts a key/value pair into the map.
*
* @param key an <code>Object</code> value
* @param value an <code>Object</code> value
* @return the previous value associated with <tt>key</tt>, or Short(0) if none was found.
*/
public Short put(Short key, Short value) {
return wrapValue(_map.put(unwrapKey(key), unwrapValue(value)));
}
/**
* Checks for the present of <tt>key</tt> in the keys of the map.
*
* @param key an <code>Object</code> value
* @return a <code>boolean</code> value
*/
public boolean containsKey(Object key) {
return _map.containsKey(unwrapKey(key));
}
/**
* Checks for the presence of <tt>val</tt> in the values of the map.
*
* @param val an <code>Object</code> value
* @return a <code>boolean</code> value
*/
public boolean containsValue(Object val) {
return _map.containsValue(unwrapValue(val));
}
/**
* Deletes a key/value pair from the map.
*
* @param key an <code>Object</code> value
* @return the removed value, or Short(0) if it was not found in the map
*/
public Short remove(Short key) {
return wrapValue(_map.remove(unwrapKey(key)));
}