Package it.unimi.dsi.fastutil.longs
Class Long2LongFunctions.UnmodifiableFunction
java.lang.Object
it.unimi.dsi.fastutil.longs.AbstractLong2LongFunction
it.unimi.dsi.fastutil.longs.Long2LongFunctions.UnmodifiableFunction
- All Implemented Interfaces:
Function<java.lang.Long,java.lang.Long>
,Long2LongFunction
,java.io.Serializable
,java.util.function.Function<java.lang.Long,java.lang.Long>
,java.util.function.LongUnaryOperator
- Direct Known Subclasses:
Long2LongMaps.UnmodifiableMap
- Enclosing class:
- Long2LongFunctions
public static class Long2LongFunctions.UnmodifiableFunction extends AbstractLong2LongFunction implements java.io.Serializable
An unmodifiable wrapper class for functions.
- See Also:
- Serialized Form
-
Method Summary
Modifier and Type Method Description void
clear()
Removes all associations from this function (optional operation).boolean
containsKey(long k)
Returns true if this function contains a mapping for the specified key.long
defaultReturnValue()
Gets the default return value.void
defaultReturnValue(long defRetValue)
Sets the default return value (optional operation).boolean
equals(java.lang.Object o)
long
get(long k)
Returns the value to which the given key is mapped.java.lang.Long
get(java.lang.Object k)
Deprecated.Please use the corresponding type-specific method instead.long
getOrDefault(long k, long defaultValue)
Returns the value associated by this function to the specified key, or give the specified value if not present.java.lang.Long
getOrDefault(java.lang.Object k, java.lang.Long defaultValue)
Deprecated.Please use the corresponding type-specific method instead.int
hashCode()
long
put(long k, long v)
Adds a pair to the map (optional operation).java.lang.Long
put(java.lang.Long k, java.lang.Long v)
Deprecated.Please use the corresponding type-specific method instead.long
remove(long k)
Removes the mapping with the given key (optional operation).java.lang.Long
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()
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
Methods inherited from interface it.unimi.dsi.fastutil.longs.Long2LongFunction
andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsLong, compose, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, containsKey
Methods inherited from interface java.util.function.LongUnaryOperator
andThen, compose
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Method Details
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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 long defaultReturnValue()Description copied from interface:Long2LongFunction
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 interfaceLong2LongFunction
- Overrides:
defaultReturnValue
in classAbstractLong2LongFunction
- Returns:
- the current default return value.
-
defaultReturnValue
public void defaultReturnValue(long defRetValue)Description copied from interface:Long2LongFunction
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 interfaceLong2LongFunction
- Overrides:
defaultReturnValue
in classAbstractLong2LongFunction
- Parameters:
defRetValue
- the new default return value.- See Also:
Long2LongFunction.defaultReturnValue()
-
containsKey
public boolean containsKey(long k)Description copied from interface:Long2LongFunction
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 interfaceLong2LongFunction
- 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 long put(long k, long v)Description copied from interface:Long2LongFunction
Adds a pair to the map (optional operation).- Specified by:
put
in interfaceLong2LongFunction
- 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 long get(long k)Description copied from interface:Long2LongFunction
Returns the value to which the given key is mapped.- Specified by:
get
in interfaceLong2LongFunction
- 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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getOrDefault
public long getOrDefault(long k, long defaultValue)Description copied from interface:Long2LongFunction
Returns the value associated by this function to the specified key, or give the specified value if not present.- Specified by:
getOrDefault
in interfaceLong2LongFunction
- Parameters:
k
- 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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remove
public long remove(long k)Description copied from interface:Long2LongFunction
Removes the mapping with the given key (optional operation).- Specified by:
remove
in interfaceLong2LongFunction
- 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). -
put
@Deprecated public java.lang.Long put(java.lang.Long k, java.lang.Long 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 interfaceFunction<java.lang.Long,java.lang.Long>
- Specified by:
put
in interfaceLong2LongFunction
- 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)
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get
@Deprecated public java.lang.Long 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.- Specified by:
get
in interfaceFunction<java.lang.Long,java.lang.Long>
- Specified by:
get
in interfaceLong2LongFunction
- Parameters:
k
- the key.- Returns:
- the corresponding value, or
null
if no value was present for the given key. - See Also:
Map.get(Object)
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getOrDefault
@Deprecated public java.lang.Long getOrDefault(java.lang.Object k, java.lang.Long defaultValue)Deprecated.Please use the corresponding type-specific method instead.Returns the value associated by this function to the specified key, or give the specified value if not present.- Specified by:
getOrDefault
in interfaceFunction<java.lang.Long,java.lang.Long>
- Specified by:
getOrDefault
in interfaceLong2LongFunction
- Parameters:
k
- 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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remove
@Deprecated public java.lang.Long 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).- Specified by:
remove
in interfaceFunction<java.lang.Long,java.lang.Long>
- Specified by:
remove
in interfaceLong2LongFunction
- Parameters:
k
- the key.- Returns:
- the old value, or
null
if no value was present for the given key. - See Also:
Map.remove(Object)
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hashCode
public int hashCode()- Overrides:
hashCode
in classjava.lang.Object
-
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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