Package it.unimi.dsi.fastutil.objects
Class Reference2DoubleFunctions.PrimitiveFunction<K>
- java.lang.Object
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- it.unimi.dsi.fastutil.objects.Reference2DoubleFunctions.PrimitiveFunction<K>
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- All Implemented Interfaces:
Function<K,java.lang.Double>
,Reference2DoubleFunction<K>
,java.util.function.Function<K,java.lang.Double>
,java.util.function.ToDoubleFunction<K>
- Enclosing class:
- Reference2DoubleFunctions
public static class Reference2DoubleFunctions.PrimitiveFunction<K> extends java.lang.Object implements Reference2DoubleFunction<K>
An adapter for mapping generic total functions to partial primitive functions.
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description boolean
containsKey(java.lang.Object key)
Returns true if this function contains a mapping for the specified key.java.lang.Double
get(java.lang.Object key)
Deprecated.double
getDouble(java.lang.Object key)
Returns the value to which the given key is mapped.double
getOrDefault(java.lang.Object key, double defaultValue)
Returns the value associated by this function to the specified key, or give the specified value if not present.java.lang.Double
getOrDefault(java.lang.Object key, java.lang.Double defaultValue)
Deprecated.java.lang.Double
put(K key, java.lang.Double value)
Deprecated.-
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2DoubleFunction
andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsDouble, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, defaultReturnValue, defaultReturnValue, put, remove, removeDouble
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Method Detail
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containsKey
public boolean containsKey(java.lang.Object key)
Description copied from interface:Function
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. This default implementation, in particular, always return true.
- Specified by:
containsKey
in interfaceFunction<K,java.lang.Double>
- Parameters:
key
- the key.- Returns:
- true if this function associates a value to
key
. - See Also:
Map.containsKey(Object)
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getDouble
public double getDouble(java.lang.Object key)
Description copied from interface:Reference2DoubleFunction
Returns the value to which the given key is mapped.- Specified by:
getDouble
in interfaceReference2DoubleFunction<K>
- Parameters:
key
- 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)
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getOrDefault
public double getOrDefault(java.lang.Object key, double defaultValue)
Description copied from interface:Reference2DoubleFunction
Returns the value associated by this function to the specified key, or give the specified value if not present.- Specified by:
getOrDefault
in interfaceReference2DoubleFunction<K>
- Parameters:
key
- the key.defaultValue
- the value to return if not present.- Returns:
- the corresponding value, or
defaultValue
if no value was present for the given key. - See Also:
Function.getOrDefault(Object, Object)
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get
@Deprecated public java.lang.Double get(java.lang.Object key)
Deprecated.Description copied from interface:Reference2DoubleFunction
Returns the value associated by this function to the specified key.
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getOrDefault
@Deprecated public java.lang.Double getOrDefault(java.lang.Object key, java.lang.Double defaultValue)
Deprecated.Description copied from interface:Reference2DoubleFunction
Returns the value associated by this function to the specified key, or give the specified value if not present.- Specified by:
getOrDefault
in interfaceFunction<K,java.lang.Double>
- Specified by:
getOrDefault
in interfaceReference2DoubleFunction<K>
- Parameters:
key
- the key.defaultValue
- the default value to return if not present.- Returns:
- the corresponding value, or
defaultValue
if no value was present for the given key. - See Also:
Map.getOrDefault(Object, Object)
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put
@Deprecated public java.lang.Double put(K key, java.lang.Double value)
Deprecated.Description copied from interface:Reference2DoubleFunction
Associates the specified value with the specified key in this function (optional operation).
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