Package it.unimi.dsi.fastutil.bytes

Class Byte2ByteMaps.UnmodifiableMap

java.lang.Object

it.unimi.dsi.fastutil.bytes.AbstractByte2ByteFunction

it.unimi.dsi.fastutil.bytes.Byte2ByteFunctions.UnmodifiableFunction

it.unimi.dsi.fastutil.bytes.Byte2ByteMaps.UnmodifiableMap

All Implemented Interfaces:

Byte2ByteFunction, Byte2ByteMap, Function<Byte,Byte>, Serializable, Function<Byte,Byte>, IntUnaryOperator, Map<Byte,Byte>

Direct Known Subclasses:

Byte2ByteSortedMaps.UnmodifiableSortedMap

Enclosing class:

Byte2ByteMaps

public static class Byte2ByteMaps.UnmodifiableMap
extends Byte2ByteFunctions.UnmodifiableFunction
implements Byte2ByteMap, Serializable

An unmodifiable wrapper class for maps.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.bytes.Byte2ByteMap

Byte2ByteMap.Entry, Byte2ByteMap.FastEntrySet

Method Summary

Modifier and Type	Method	Description
ObjectSet<Byte2ByteMap.Entry>	byte2ByteEntrySet()	Returns a type-specific set view of the mappings contained in this map.
byte	compute(byte key, BiFunction<? super Byte,? super Byte,? extends Byte> remappingFunction)	Attempts to compute a mapping for the specified key and its current mapped value (or null if there is no current mapping).
Byte	compute(Byte key, BiFunction<? super Byte,? super Byte,? extends Byte> remappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
byte	computeIfAbsent(byte key, Byte2ByteFunction mappingFunction)	If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map, unless the key is not present in the given mapping function.
byte	computeIfAbsent(byte key, IntUnaryOperator mappingFunction)	If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map.
Byte	computeIfAbsent(Byte key, Function<? super Byte,? extends Byte> mappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
byte	computeIfAbsentNullable(byte key, IntFunction<? extends Byte> mappingFunction)	If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map unless it is null.
byte	computeIfPresent(byte key, BiFunction<? super Byte,? super Byte,? extends Byte> remappingFunction)	If the value for the specified key is present, attempts to compute a new mapping given the key and its current mapped value.
Byte	computeIfPresent(Byte key, BiFunction<? super Byte,? super Byte,? extends Byte> remappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
boolean	containsValue(byte v)	Returns true if this map maps one or more keys to the specified value.
boolean	containsValue(Object ov)	Deprecated. Please use the corresponding type-specific method instead.
ObjectSet<Map.Entry<Byte,Byte>>	entrySet()	Deprecated. Please use the corresponding type-specific method instead.
boolean	equals(Object o)
void	forEach(BiConsumer<? super Byte,? super Byte> action)
byte	getOrDefault(byte key, byte defaultValue)	Returns the value associated by this function to the specified key, or give the specified value if not present.
Byte	getOrDefault(Object key, Byte defaultValue)	Deprecated. Please use the corresponding type-specific method instead.
int	hashCode()
boolean	isEmpty()
ByteSet	keySet()
byte	merge(byte key, byte value, BiFunction<? super Byte,? super Byte,? extends Byte> remappingFunction)	If the specified key is not already associated with a value, associates it with the given value.
Byte	merge(Byte key, Byte value, BiFunction<? super Byte,? super Byte,? extends Byte> remappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
void	putAll(Map<? extends Byte,? extends Byte> m)
byte	putIfAbsent(byte key, byte value)	If the specified key is not already associated with a value, associates it with the given value and returns the default return value, else returns the current value.
Byte	putIfAbsent(Byte key, Byte value)	Deprecated. Please use the corresponding type-specific method instead.
boolean	remove(byte key, byte value)	Removes the entry for the specified key only if it is currently mapped to the specified value.
boolean	remove(Object key, Object value)	Deprecated. Please use the corresponding type-specific method instead.
byte	replace(byte key, byte value)	Replaces the entry for the specified key only if it is currently mapped to some value.
boolean	replace(byte key, byte oldValue, byte newValue)	Replaces the entry for the specified key only if currently mapped to the specified value.
Byte	replace(Byte key, Byte value)	Deprecated. Please use the corresponding type-specific method instead.
boolean	replace(Byte key, Byte oldValue, Byte newValue)	Deprecated. Please use the corresponding type-specific method instead.
void	replaceAll(BiFunction<? super Byte,? super Byte,? extends Byte> function)
ByteCollection	values()

Methods inherited from class it.unimi.dsi.fastutil.bytes.Byte2ByteFunctions.UnmodifiableFunction

clear, containsKey, defaultReturnValue, defaultReturnValue, get, get, put, put, remove, remove, size, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.bytes.Byte2ByteFunction

andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsInt, compose, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, get, put, remove

Methods inherited from interface it.unimi.dsi.fastutil.bytes.Byte2ByteMap

clear, computeIfAbsentPartial, containsKey, containsKey, defaultReturnValue, defaultReturnValue, get, mergeByte, mergeByte, put, remove, size

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

apply

Methods inherited from interface java.util.function.IntUnaryOperator

andThen, compose

Method Details

containsValue

public boolean containsValue(byte v)

Description copied from interface: Byte2ByteMap

Returns true if this map maps one or more keys to the specified value.

Specified by:

containsValue in interface Byte2ByteMap

See Also:

• Map.containsValue(Object)

containsValue

@Deprecated
public boolean containsValue(Object ov)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

containsValue in interface Byte2ByteMap

Specified by:

containsValue in interface Map<Byte,Byte>

putAll

public void putAll(Map<? extends Byte,? extends Byte> m)

Specified by:

putAll in interface Map<Byte,Byte>

byte2ByteEntrySet

public ObjectSet<Byte2ByteMap.Entry> byte2ByteEntrySet()

Description copied from interface: Byte2ByteMap

Returns a type-specific set view of the mappings contained in this map.

This method is necessary because there is no inheritance along type parameters: it is thus impossible to strengthen Map.entrySet() so that it returns an ObjectSet of type-specific entries (the latter makes it possible to access keys and values with type-specific methods).

Specified by:

byte2ByteEntrySet in interface Byte2ByteMap

Returns:

a type-specific set view of the mappings contained in this map.

See Also:

• Map.entrySet()

entrySet

@Deprecated
public ObjectSet<Map.Entry<Byte,Byte>> entrySet()

Deprecated.

Please use the corresponding type-specific method instead.

Returns a set view of the mappings contained in this map.

Specified by:

entrySet in interface Byte2ByteMap

Specified by:

entrySet in interface Map<Byte,Byte>

Returns:

a set view of the mappings contained in this map.

See Also:

• Map.entrySet()

keySet

public ByteSet keySet()

Description copied from interface: Byte2ByteMap

Specified by:

keySet in interface Byte2ByteMap

Specified by:

keySet in interface Map<Byte,Byte>

Returns:

a set view of the keys contained in this map.

See Also:

• Map.keySet()

values

public ByteCollection values()

Description copied from interface: Byte2ByteMap

Specified by:

values in interface Byte2ByteMap

Specified by:

values in interface Map<Byte,Byte>

Returns:

a set view of the values contained in this map.

See Also:

• Map.values()

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<Byte,Byte>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<Byte,Byte>

Overrides:

hashCode in class Byte2ByteFunctions.UnmodifiableFunction

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<Byte,Byte>

Overrides:

equals in class Byte2ByteFunctions.UnmodifiableFunction

getOrDefault

public byte getOrDefault(byte key,
 byte defaultValue)

Description copied from interface: Byte2ByteFunction

Returns the value associated by this function to the specified key, or give the specified value if not present.

Specified by:

getOrDefault in interface Byte2ByteFunction

Specified by:

getOrDefault in interface Byte2ByteMap

Overrides:

getOrDefault in class Byte2ByteFunctions.UnmodifiableFunction

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)

forEach

public void forEach(BiConsumer<? super Byte,? super Byte> action)

Specified by:

forEach in interface Byte2ByteMap

Specified by:

forEach in interface Map<Byte,Byte>

replaceAll

public void replaceAll(BiFunction<? super Byte,? super Byte,? extends Byte> function)

Specified by:

replaceAll in interface Map<Byte,Byte>

putIfAbsent

public byte putIfAbsent(byte key,
 byte value)

Description copied from interface: Byte2ByteMap

If the specified key is not already associated with a value, associates it with the given value and returns the default return value, else returns the current value.

Specified by:

putIfAbsent in interface Byte2ByteMap

Parameters:

key - key with which the specified value is to be associated.

value - value to be associated with the specified key.

Returns:

the previous value associated with the specified key, or the default return value if there was no mapping for the key.

See Also:

• Map.putIfAbsent(Object, Object)

remove

public boolean remove(byte key,
 byte value)

Description copied from interface: Byte2ByteMap

Removes the entry for the specified key only if it is currently mapped to the specified value.

Specified by:

remove in interface Byte2ByteMap

Parameters:

key - key with which the specified value is associated.

value - value expected to be associated with the specified key.

Returns:

true if the value was removed.

See Also:

• Map.remove(Object, Object)

replace

public byte replace(byte key,
 byte value)

Description copied from interface: Byte2ByteMap

Replaces the entry for the specified key only if it is currently mapped to some value.

Specified by:

replace in interface Byte2ByteMap

Parameters:

key - key with which the specified value is associated.

value - value to be associated with the specified key.

Returns:

the previous value associated with the specified key, or the default return value if there was no mapping for the key.

See Also:

• Map.replace(Object, Object)

replace

public boolean replace(byte key,
 byte oldValue,
 byte newValue)

Description copied from interface: Byte2ByteMap

Replaces the entry for the specified key only if currently mapped to the specified value.

Specified by:

replace in interface Byte2ByteMap

Parameters:

key - key with which the specified value is associated.

oldValue - value expected to be associated with the specified key.

newValue - value to be associated with the specified key.

Returns:

true if the value was replaced.

See Also:

• Map.replace(Object, Object, Object)

computeIfAbsent

public byte computeIfAbsent(byte key,
 IntUnaryOperator mappingFunction)

Description copied from interface: Byte2ByteMap

If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map.

Note that contrarily to the default computeIfAbsent(), it is not possible to not add a value for a given key, since the mappingFunction cannot return null. If such a behavior is needed, please use the corresponding nullable version.

Specified by:

computeIfAbsent in interface Byte2ByteMap

Parameters:

key - key with which the specified value is to be associated.

mappingFunction - the function to compute a value.

Returns:

the current (existing or computed) value associated with the specified key.

See Also:

• Map.computeIfAbsent(Object, java.util.function.Function)

computeIfAbsentNullable

public byte computeIfAbsentNullable(byte key,
 IntFunction<? extends Byte> mappingFunction)

Description copied from interface: Byte2ByteMap

If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map unless it is null.

Note that this version of computeIfAbsent() should be used only if you plan to return null in the mapping function.

Specified by:

computeIfAbsentNullable in interface Byte2ByteMap

Parameters:

key - key with which the specified value is to be associated.

mappingFunction - the function to compute a value.

Returns:

the current (existing or computed) value associated with the specified key, or the default return value if the computed value is null.

See Also:

• Map.computeIfAbsent(Object, java.util.function.Function)

computeIfAbsent

public byte computeIfAbsent(byte key,
 Byte2ByteFunction mappingFunction)

Description copied from interface: Byte2ByteMap

If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map, unless the key is not present in the given mapping function.

This version of computeIfAbsent() uses a type-specific version of fastutil's Function. Since Function has a containsKey() method, it is possible to avoid adding a key by having containsKey() return false for that key.

Specified by:

computeIfAbsent in interface Byte2ByteMap

Parameters:

key - key with which the specified value is to be associated.

mappingFunction - the function to compute a value.

Returns:

the current (existing or computed) value associated with the specified key.

See Also:

• Map.computeIfAbsent(Object, java.util.function.Function)

computeIfPresent

public byte computeIfPresent(byte key,
 BiFunction<? super Byte,? super Byte,? extends Byte> remappingFunction)

Description copied from interface: Byte2ByteMap

If the value for the specified key is present, attempts to compute a new mapping given the key and its current mapped value.

Specified by:

computeIfPresent in interface Byte2ByteMap

Parameters:

key - key with which the specified value is to be associated.

remappingFunction - the function to compute a value.

Returns:

the new value associated with the specified key, or the default return value if none.

See Also:

• Map.computeIfPresent(Object, java.util.function.BiFunction)

compute

public byte compute(byte key,
 BiFunction<? super Byte,? super Byte,? extends Byte> remappingFunction)

Description copied from interface: Byte2ByteMap

Attempts to compute a mapping for the specified key and its current mapped value (or null if there is no current mapping).

If the function returns null, the mapping is removed (or remains absent if initially absent). If the function itself throws an (unchecked) exception, the exception is rethrown, and the current mapping is left unchanged.

Specified by:

compute in interface Byte2ByteMap

Parameters:

key - key with which the specified value is to be associated.

remappingFunction - the function to compute a value.

Returns:

the new value associated with the specified key, or the default return value if none.

See Also:

• Map.compute(Object, java.util.function.BiFunction)

merge

public byte merge(byte key,
 byte value,
 BiFunction<? super Byte,? super Byte,? extends Byte> remappingFunction)

Description copied from interface: Byte2ByteMap

If the specified key is not already associated with a value, associates it with the given value. Otherwise, replaces the associated value with the results of the given remapping function, or removes if the result is null.

Specified by:

merge in interface Byte2ByteMap

Parameters:

key - key with which the resulting value is to be associated.

value - the value to be merged with the existing value associated with the key or, if no existing value is associated with the key, to be associated with the key.

remappingFunction - the function to recompute a value if present.

Returns:

the new value associated with the specified key, or the default return value if no value is associated with the key.

See Also:

• Map.merge(Object, Object, java.util.function.BiFunction)

getOrDefault

@Deprecated
public Byte getOrDefault(Object key,
 Byte 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 interface Byte2ByteFunction

Specified by:

getOrDefault in interface Byte2ByteMap

Specified by:

getOrDefault in interface Function<Byte,Byte>

Specified by:

getOrDefault in interface Map<Byte,Byte>

Overrides:

getOrDefault in class Byte2ByteFunctions.UnmodifiableFunction

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)

remove

@Deprecated
public boolean remove(Object key,
 Object value)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

remove in interface Byte2ByteMap

Specified by:

remove in interface Map<Byte,Byte>

replace

@Deprecated
public Byte replace(Byte key,
 Byte value)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

replace in interface Byte2ByteMap

Specified by:

replace in interface Map<Byte,Byte>

replace

@Deprecated
public boolean replace(Byte key,
 Byte oldValue,
 Byte newValue)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

replace in interface Byte2ByteMap

Specified by:

replace in interface Map<Byte,Byte>

putIfAbsent

@Deprecated
public Byte putIfAbsent(Byte key,
 Byte value)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

putIfAbsent in interface Byte2ByteMap

Specified by:

putIfAbsent in interface Map<Byte,Byte>

computeIfAbsent

@Deprecated
public Byte computeIfAbsent(Byte key,
 Function<? super Byte,? extends Byte> mappingFunction)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

computeIfAbsent in interface Byte2ByteMap

Specified by:

computeIfAbsent in interface Map<Byte,Byte>

computeIfPresent

@Deprecated
public Byte computeIfPresent(Byte key,
 BiFunction<? super Byte,? super Byte,? extends Byte> remappingFunction)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

computeIfPresent in interface Byte2ByteMap

Specified by:

computeIfPresent in interface Map<Byte,Byte>

compute

@Deprecated
public Byte compute(Byte key,
 BiFunction<? super Byte,? super Byte,? extends Byte> remappingFunction)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

compute in interface Byte2ByteMap

Specified by:

compute in interface Map<Byte,Byte>

merge

@Deprecated
public Byte merge(Byte key,
 Byte value,
 BiFunction<? super Byte,? super Byte,? extends Byte> remappingFunction)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

merge in interface Byte2ByteMap

Specified by:

merge in interface Map<Byte,Byte>