Package it.unimi.dsi.fastutil.doubles
Class Double2ObjectFunctions.UnmodifiableFunction<V>
- java.lang.Object
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- it.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction<V>
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- it.unimi.dsi.fastutil.doubles.Double2ObjectFunctions.UnmodifiableFunction<V>
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- All Implemented Interfaces:
Double2ObjectFunction<V>
,Function<java.lang.Double,V>
,java.io.Serializable
,java.util.function.DoubleFunction<V>
,java.util.function.Function<java.lang.Double,V>
- Direct Known Subclasses:
Double2ObjectMaps.UnmodifiableMap
- Enclosing class:
- Double2ObjectFunctions
public static class Double2ObjectFunctions.UnmodifiableFunction<V> extends AbstractDouble2ObjectFunction<V> implements java.io.Serializable
An unmodifiable wrapper class for functions.- See Also:
- Serialized Form
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description void
clear()
Removes all associations from this function (optional operation).boolean
containsKey(double k)
Returns true if this function contains a mapping for the specified key.V
defaultReturnValue()
Gets the default return value.void
defaultReturnValue(V defRetValue)
Sets the default return value (optional operation).boolean
equals(java.lang.Object o)
V
get(double k)
Returns the value to which the given key is mapped.V
get(java.lang.Object k)
Deprecated.Please use the corresponding type-specific method instead.int
hashCode()
V
put(double k, V v)
Adds a pair to the map (optional operation).V
put(java.lang.Double k, V v)
Deprecated.Please use the corresponding type-specific method instead.V
remove(double k)
Removes the mapping with the given key (optional operation).V
remove(java.lang.Object k)
Deprecated.Please use the corresponding type-specific method instead.int
size()
Returns the intended number of keys in this function, or -1 if no such number exists.java.lang.String
toString()
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Method Detail
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size
public int size()
Description copied from interface:Function
Returns the intended number of keys in this function, or -1 if no such number exists.Most function implementations will have some knowledge of the intended number of keys in their domain. In some cases, however, this might not be possible. This default implementation, in particular, returns -1.
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defaultReturnValue
public V defaultReturnValue()
Description copied from interface:Double2ObjectFunction
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 interfaceDouble2ObjectFunction<V>
- Overrides:
defaultReturnValue
in classAbstractDouble2ObjectFunction<V>
- Returns:
- the current default return value.
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defaultReturnValue
public void defaultReturnValue(V defRetValue)
Description copied from interface:Double2ObjectFunction
Sets the default return value (optional operation). This value must be returned by type-specific versions ofget()
,put()
andremove()
to denote that the map does not contain the specified key. It must be 0/false
/null
by default.- Specified by:
defaultReturnValue
in interfaceDouble2ObjectFunction<V>
- Overrides:
defaultReturnValue
in classAbstractDouble2ObjectFunction<V>
- Parameters:
defRetValue
- the new default return value.- See Also:
Double2ObjectFunction.defaultReturnValue()
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containsKey
public boolean containsKey(double k)
Description copied from interface:Double2ObjectFunction
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 interfaceDouble2ObjectFunction<V>
- Parameters:
k
- the key.- Returns:
- true if this function associates a value to
key
. - See Also:
Function.containsKey(Object)
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put
public V put(double k, V v)
Description copied from interface:Double2ObjectFunction
Adds a pair to the map (optional operation).- Specified by:
put
in interfaceDouble2ObjectFunction<V>
- 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)
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get
public V get(double k)
Description copied from interface:Double2ObjectFunction
Returns the value to which the given key is mapped.- Specified by:
get
in interfaceDouble2ObjectFunction<V>
- 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)
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remove
public V remove(double k)
Description copied from interface:Double2ObjectFunction
Removes the mapping with the given key (optional operation).- Specified by:
remove
in interfaceDouble2ObjectFunction<V>
- 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)
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clear
public void clear()
Description copied from interface:Function
Removes all associations from this function (optional operation).
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put
@Deprecated public V put(java.lang.Double k, V v)
Deprecated.Please use the corresponding type-specific method instead.Associates the specified value with the specified key in this function (optional operation).
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get
@Deprecated public V get(java.lang.Object k)
Deprecated.Please use the corresponding type-specific method instead.Returns the value associated by this function to the specified key.
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remove
@Deprecated public V remove(java.lang.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).
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hashCode
public int hashCode()
- Overrides:
hashCode
in classjava.lang.Object
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equals
public boolean equals(java.lang.Object o)
- Overrides:
equals
in classjava.lang.Object
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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