Double2DoubleFunctions.UnmodifiableFunction (fastutil 8.3.1)

java.lang.Object
- it.unimi.dsi.fastutil.doubles.AbstractDouble2DoubleFunction
- - it.unimi.dsi.fastutil.doubles.Double2DoubleFunctions.UnmodifiableFunction

All Implemented Interfaces:

Double2DoubleFunction, Serializable, DoubleUnaryOperator, Function<Double,Double>

Direct Known Subclasses:

Double2DoubleMaps.UnmodifiableMap

Enclosing class:

Double2DoubleFunctions
```
public static class Double2DoubleFunctions.UnmodifiableFunction
extends AbstractDouble2DoubleFunction
implements Serializable
```
An unmodifiable wrapper class for functions.

See Also:

Serialized Form

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`void`	`clear()`
`boolean`	`containsKey(double k)` Returns true if this function contains a mapping for the specified key.
`double`	`defaultReturnValue()` Gets the default return value.
`void`	`defaultReturnValue(double defRetValue)` Sets the default return value (optional operation).
`boolean`	`equals(Object o)`
`double`	`get(double k)` Returns the value to which the given key is mapped.
`Double`	`get(Object k)` Deprecated. Please use the corresponding type-specific method instead.
`int`	`hashCode()`
`double`	`put(double k, double v)` Adds a pair to the map (optional operation).
`Double`	`put(Double k, Double v)` Deprecated. Please use the corresponding type-specific method instead.
`double`	`remove(double k)` Removes the mapping with the given key (optional operation).
`Double`	`remove(Object k)` Deprecated. Please use the corresponding type-specific method instead.
`int`	`size()`
`String`	`toString()`

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleFunction
applyAsDouble, containsKey

Methods inherited from interface it.unimi.dsi.fastutil.Function
apply

Methods inherited from interface java.util.function.Function
andThen, compose, identity

Methods inherited from interface java.util.function.DoubleUnaryOperator
andThen, compose, identity

- Method Detail
  - size
```
public int size()
```
  - defaultReturnValue
```
public double defaultReturnValue()
```
    Description copied from interface: Double2DoubleFunction
    
    Gets the default return value.
    This default implementation just return the default null value of the type (null for objects, 0 for scalars, false for Booleans).
    
    Specified by:
    
    defaultReturnValue in interface Double2DoubleFunction
    
    Overrides:
    
    defaultReturnValue in class AbstractDouble2DoubleFunction
    
    Returns:
    
    the current default return value.
  - defaultReturnValue
```
public void defaultReturnValue(double defRetValue)
```
    Description copied from interface: Double2DoubleFunction
    
    Sets the default return value (optional operation). This value must be returned by type-specific versions of get(), put() and remove() to denote that the map does not contain the specified key. It must be 0/false/null by default.
    
    Specified by:
    
    defaultReturnValue in interface Double2DoubleFunction
    
    Overrides:
    
    defaultReturnValue in class AbstractDouble2DoubleFunction
    
    Parameters:
    
    defRetValue - the new default return value.
    
    See Also:
    
    Double2DoubleFunction.defaultReturnValue()
  - containsKey
```
public boolean containsKey(double k)
```
    Description copied from interface: Double2DoubleFunction
    
    Returns true if this function contains a mapping for the specified key.
    Note that for some kind of functions (e.g., hashes) this method will always return true. In particular, this default implementation always returns true.
    
    Specified by:
    
    containsKey in interface Double2DoubleFunction
    
    Parameters:
    
    k - the key.
    
    Returns:
    
    true if this function associates a value to key.
    
    See Also:
    
    Function.containsKey(Object)
  - put
```
public double put(double k,
                  double v)
```
    Description copied from interface: Double2DoubleFunction
    
    Adds a pair to the map (optional operation).
    
    Specified by:
    
    put in interface Double2DoubleFunction
    
    Parameters:
    
    k - the key.
    
    v - the value.
    
    Returns:
    
    the old value, or the default return value if no value was present for the given key.
    
    See Also:
    
    Function.put(Object,Object)
  - get
```
public double get(double k)
```
    Description copied from interface: Double2DoubleFunction
    
    Returns the value to which the given key is mapped.
    
    Specified by:
    
    get in interface Double2DoubleFunction
    
    Parameters:
    
    k - the key.
    
    Returns:
    
    the corresponding value, or the default return value if no value was present for the given key.
    
    See Also:
    
    Function.get(Object)
  - remove
```
public double remove(double k)
```
    Description copied from interface: Double2DoubleFunction
    
    Removes the mapping with the given key (optional operation).
    
    Specified by:
    
    remove in interface Double2DoubleFunction
    
    Parameters:
    
    k - the key.
    
    Returns:
    
    the old value, or the default return value if no value was present for the given key.
    
    See Also:
    
    Function.remove(Object)
  - clear
```
public void clear()
```
  - put
```
@Deprecated
public Double put(Double k,
                              Double v)
```
    Deprecated. Please use the corresponding type-specific method instead.
    
    Associates the specified value with the specified key in this function (optional operation).
    
    Specified by:
    
    put in interface Double2DoubleFunction
    
    Parameters:
    
    k - the key.
    
    v - the value.
    
    Returns:
    
    the old value, or null if no value was present for the given key.
    
    See Also:
    
    Map.put(Object,Object)
  - get
```
@Deprecated
public Double get(Object k)
```
    Deprecated. Please use the corresponding type-specific method instead.
    
    Returns the value associated by this function to the specified key.
    
    Specified by:
    
    get in interface Double2DoubleFunction
    
    Parameters:
    
    k - the key.
    
    Returns:
    
    the corresponding value, or null if no value was present for the given key.
    
    See Also:
    
    Map.get(Object)
  - remove
```
@Deprecated
public Double remove(Object k)
```
    Deprecated. Please use the corresponding type-specific method instead.
    
    Removes this key and the associated value from this function if it is present (optional operation).
    
    Specified by:
    
    remove in interface Double2DoubleFunction
    
    Parameters:
    
    k - the key.
    
    Returns:
    
    the old value, or null if no value was present for the given key.
    
    See Also:
    
    Map.remove(Object)
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class Double2DoubleFunctions.UnmodifiableFunction

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleFunction

Methods inherited from interface it.unimi.dsi.fastutil.Function

Methods inherited from interface java.util.function.Function

Methods inherited from interface java.util.function.DoubleUnaryOperator

Method Detail

size

defaultReturnValue

defaultReturnValue

containsKey

put

get

remove

clear

put

get

remove

hashCode

equals

toString