Package org.apache.sis.util.collection

Class DerivedMap.InvertibleKey<SK,SV,K,V>

java.lang.Object

java.util.AbstractMap<K,V>

org.apache.sis.util.collection.DerivedMap<SK,SV,K,V>

org.apache.sis.util.collection.DerivedMap.InvertibleKey<SK,SV,K,V>

Type Parameters:

SK - the type of keys in the storage map.

SV - the type of values in the storage map.

K - the type of keys in this map.

V - the type of values in this map.

All Implemented Interfaces:

Serializable, Function<Map.Entry<SK,SV>,Map.Entry<K,V>>, Map<K,V>, ObjectConverter<Map.Entry<SK,SV>,Map.Entry<K,V>>

Direct Known Subclasses:

DerivedMap.Invertible

Enclosing class:

DerivedMap<SK,SV,K,V>

private static class DerivedMap.InvertibleKey<SK,SV,K,V>
extends DerivedMap<SK,SV,K,V>

A DerivedMap used when the DerivedMap.keyConverter is invertible. Availability of the inverse conversion allows us to delegate some operations to the DerivedMap.storage map instead of iterating over all entries.

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Field Summary

Fields

Modifier and Type	Field	Description
protected final ObjectConverter<K,SK>	keyInverse	The inverse of DerivedMap.keyConverter.
private static final long	serialVersionUID

Fields inherited from class org.apache.sis.util.collection.DerivedMap

keyConverter, storage, valueConverter

Constructor Summary

Constructors

Constructor	Description
InvertibleKey(Map<SK,SV> storage, ObjectConverter<SK,K> keyConverter, ObjectConverter<SV,V> valueConverter)

Method Summary

Modifier and Type	Method	Description
final boolean	containsKey(Object key)
final V	get(Object key)
final V	remove(Object key)

Methods inherited from class org.apache.sis.util.collection.DerivedMap

apply, create, entrySet, getSourceClass, getTargetClass, inverse, isEmpty, keySet, properties, put, put, size

Methods inherited from class java.util.AbstractMap

clear, clone, containsValue, equals, hashCode, putAll, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.function.Function

andThen, compose

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

keyInverse

protected final ObjectConverter<K,SK> keyInverse

The inverse of DerivedMap.keyConverter.

Constructor Details

InvertibleKey

InvertibleKey(Map<SK,SV> storage,
 ObjectConverter<SK,K> keyConverter,
 ObjectConverter<SV,V> valueConverter)

Method Details

get

public final V get(Object key)

Specified by:

get in interface Map<SK,SV>

Overrides:

get in class AbstractMap<K,V>

remove

public final V remove(Object key)
               throws UnsupportedOperationException

Specified by:

remove in interface Map<SK,SV>

Overrides:

remove in class AbstractMap<K,V>

Throws:

UnsupportedOperationException

containsKey

public final boolean containsKey(Object key)

Specified by:

containsKey in interface Map<SK,SV>

Overrides:

containsKey in class AbstractMap<K,V>