public static class Int2IntFunctions.EmptyFunction extends AbstractInt2IntFunction implements java.io.Serializable, java.lang.Cloneable
This class may be useful to implement your own in case you subclass a type-specific function.
Modifier and Type | Method and Description |
---|---|
void |
clear() |
java.lang.Object |
clone() |
boolean |
containsKey(int k)
Returns true if this function contains a mapping for the specified key.
|
int |
defaultReturnValue()
Gets the default return value.
|
void |
defaultReturnValue(int defRetValue)
Sets the default return value (optional operation).
|
boolean |
equals(java.lang.Object o) |
int |
get(int k)
Returns the value to which the given key is mapped.
|
int |
getOrDefault(int k,
int defaultValue)
Returns the value associated by this function to the specified key, or give the specified
value if not present.
|
int |
hashCode() |
int |
size() |
java.lang.String |
toString() |
andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsInt, compose, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, containsKey, get, getOrDefault, identity, put, put, remove, remove
public int get(int k)
Int2IntFunction
get
in interface Int2IntFunction
k
- the key.Function.get(Object)
public int getOrDefault(int k, int defaultValue)
Int2IntFunction
getOrDefault
in interface Int2IntFunction
k
- the key.defaultValue
- the value to return if not present.defaultValue
if no value was present for the given key.Function.getOrDefault(Object, Object)
public boolean containsKey(int k)
Int2IntFunction
Note that for some kind of functions (e.g., hashes) this method will always return true. In particular, this default implementation always returns true.
containsKey
in interface Int2IntFunction
k
- the key.key
.Function.containsKey(Object)
public int defaultReturnValue()
Int2IntFunction
This default implementation just return the default null value
of the type (null
for objects, 0 for scalars, false for Booleans).
defaultReturnValue
in interface Int2IntFunction
defaultReturnValue
in class AbstractInt2IntFunction
public void defaultReturnValue(int defRetValue)
Int2IntFunction
get()
, put()
and remove()
to
denote that the map does not contain the specified key. It must be
0/false
/null
by default.defaultReturnValue
in interface Int2IntFunction
defaultReturnValue
in class AbstractInt2IntFunction
defRetValue
- the new default return value.Int2IntFunction.defaultReturnValue()
public int size()
public void clear()
public java.lang.Object clone()
clone
in class java.lang.Object
public int hashCode()
hashCode
in class java.lang.Object
public boolean equals(java.lang.Object o)
equals
in class java.lang.Object
public java.lang.String toString()
toString
in class java.lang.Object