public static class Double2BooleanFunctions.EmptyFunction extends AbstractDouble2BooleanFunction 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(double k)
Returns true if this function contains a mapping for the specified key.
|
boolean |
defaultReturnValue()
Gets the default return value.
|
void |
defaultReturnValue(boolean defRetValue)
Sets the default return value (optional operation).
|
boolean |
equals(java.lang.Object o) |
boolean |
get(double k)
Returns the value to which the given key is mapped.
|
boolean |
getOrDefault(double k,
boolean 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, compose, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, containsKey, get, getOrDefault, put, put, remove, remove, test
public boolean get(double k)
Double2BooleanFunction
get
in interface Double2BooleanFunction
k
- the key.Function.get(Object)
public boolean getOrDefault(double k, boolean defaultValue)
Double2BooleanFunction
getOrDefault
in interface Double2BooleanFunction
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(double k)
Double2BooleanFunction
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 Double2BooleanFunction
k
- the key.key
.Function.containsKey(Object)
public boolean defaultReturnValue()
Double2BooleanFunction
This default implementation just return the default null value
of the type (null
for objects, 0 for scalars, false for Booleans).
defaultReturnValue
in interface Double2BooleanFunction
defaultReturnValue
in class AbstractDouble2BooleanFunction
public void defaultReturnValue(boolean defRetValue)
Double2BooleanFunction
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 Double2BooleanFunction
defaultReturnValue
in class AbstractDouble2BooleanFunction
defRetValue
- the new default return value.Double2BooleanFunction.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