Package it.unimi.dsi.fastutil.objects
Class Object2IntFunctions.UnmodifiableFunction<K>
- java.lang.Object
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- it.unimi.dsi.fastutil.objects.AbstractObject2IntFunction<K>
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- it.unimi.dsi.fastutil.objects.Object2IntFunctions.UnmodifiableFunction<K>
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- All Implemented Interfaces:
Function<K,java.lang.Integer>
,Object2IntFunction<K>
,java.io.Serializable
,java.util.function.Function<K,java.lang.Integer>
,java.util.function.ToIntFunction<K>
- Direct Known Subclasses:
Object2IntMaps.UnmodifiableMap
- Enclosing class:
- Object2IntFunctions
public static class Object2IntFunctions.UnmodifiableFunction<K> extends AbstractObject2IntFunction<K> 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(java.lang.Object k)
Returns true if this function contains a mapping for the specified key.int
defaultReturnValue()
Gets the default return value.void
defaultReturnValue(int defRetValue)
Sets the default return value (optional operation).boolean
equals(java.lang.Object o)
java.lang.Integer
get(java.lang.Object k)
Deprecated.Please use the corresponding type-specific method instead.int
getInt(java.lang.Object k)
Returns the value to which the given key is mapped.int
hashCode()
int
put(K k, int v)
Adds a pair to the map (optional operation).java.lang.Integer
put(K k, java.lang.Integer v)
Deprecated.Please use the corresponding type-specific method instead.java.lang.Integer
remove(java.lang.Object k)
Deprecated.Please use the corresponding type-specific method instead.int
removeInt(java.lang.Object k)
Removes the mapping with the given key (optional operation).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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Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2IntFunction
andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsInt, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort
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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 int defaultReturnValue()
Description copied from interface:Object2IntFunction
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 interfaceObject2IntFunction<K>
- Overrides:
defaultReturnValue
in classAbstractObject2IntFunction<K>
- Returns:
- the current default return value.
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defaultReturnValue
public void defaultReturnValue(int defRetValue)
Description copied from interface:Object2IntFunction
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 interfaceObject2IntFunction<K>
- Overrides:
defaultReturnValue
in classAbstractObject2IntFunction<K>
- Parameters:
defRetValue
- the new default return value.- See Also:
Object2IntFunction.defaultReturnValue()
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containsKey
public boolean containsKey(java.lang.Object k)
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.Integer>
- Parameters:
k
- the key.- Returns:
- true if this function associates a value to
key
. - See Also:
Map.containsKey(Object)
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put
public int put(K k, int v)
Description copied from interface:Object2IntFunction
Adds a pair to the map (optional operation).- Specified by:
put
in interfaceObject2IntFunction<K>
- 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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getInt
public int getInt(java.lang.Object k)
Description copied from interface:Object2IntFunction
Returns the value to which the given key is mapped.- Specified by:
getInt
in interfaceObject2IntFunction<K>
- 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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removeInt
public int removeInt(java.lang.Object k)
Description copied from interface:Object2IntFunction
Removes the mapping with the given key (optional operation).- Specified by:
removeInt
in interfaceObject2IntFunction<K>
- 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 java.lang.Integer put(K k, java.lang.Integer 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 java.lang.Integer 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 java.lang.Integer 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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