Module net.shibboleth.utilities.java.support

Package net.shibboleth.utilities.java.support.collection

Class ValueTypeIndexedMap<KeyType,ValueType>

java.lang.Object

net.shibboleth.utilities.java.support.collection.ValueTypeIndexedMap<KeyType,ValueType>

Type Parameters:

KeyType - the type of object used as keys

ValueType - the type of object stored as values

All Implemented Interfaces:

Map<KeyType,ValueType>

@Beta
public class ValueTypeIndexedMap<KeyType,ValueType>
extends Object
implements Map<KeyType,ValueType>

Map implementation which allows subsets of entries to be retrieved based on the type of the entry value.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	ValueTypeIndexedMap.NullValue	Class to represent null values.

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
private Map<Class<?>,Map<KeyType,ValueType>>	index	Storage for index of class -> members.
private Map<KeyType,ValueType>	map	Storage for map members.
private Set<Class<?>>	types	Set of valid types for this map.

Constructor Summary

Constructors

Constructor	Description
ValueTypeIndexedMap()	Constructor.
ValueTypeIndexedMap(Collection<Class<?>> newTypes)	Constructor.
ValueTypeIndexedMap(Map<KeyType,ValueType> newMap, Collection<Class<?>> newTypes)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<KeyType,ValueType>>	entrySet()
boolean	equals(Object obj)
ValueType	get(Object key)
Set<Class<?>>	getTypes()	Get the value types that are indexed.
int	hashCode()
boolean	isEmpty()
Set<KeyType>	keySet()
private Boolean	matchType(Class<?> type, Object object)	Check if the object is of the specified type, taking null into account as well.
ValueType	put(KeyType key, ValueType value)
void	putAll(Map<? extends KeyType,? extends ValueType> t)
void	rebuildIndex()	Rebuild internal index.
ValueType	remove(Object key)
void	setTypes(Collection<Class<?>> newTypes)	Set which value types are indexed.
int	size()
<SubType extends ValueType> Map<KeyType,SubType>	subMap(Class<SubType> type)	Returns an unmodifiable map of the entries whose value is of the specified type.
String	toString()
Collection<ValueType>	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

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

Field Detail

index

private Map<Class<?>,Map<KeyType,ValueType>> index

Storage for index of class -> members.

map

private Map<KeyType,ValueType> map

Storage for map members.

types

private Set<Class<?>> types

Set of valid types for this map.

Constructor Detail

ValueTypeIndexedMap

public ValueTypeIndexedMap()

Constructor.

ValueTypeIndexedMap

public ValueTypeIndexedMap(Map<KeyType,ValueType> newMap,
                           Collection<Class<?>> newTypes)

Constructor.

Parameters:

newMap - existing map to build from.

newTypes - collection of value types to index

ValueTypeIndexedMap

public ValueTypeIndexedMap(Collection<Class<?>> newTypes)

Constructor.

Parameters:

newTypes - collection of value types to index

Method Detail

clear

public void clear()

Specified by:

clear in interface Map<KeyType,ValueType>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<KeyType,ValueType>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<KeyType,ValueType>

entrySet

public Set<Map.Entry<KeyType,ValueType>> entrySet()

Specified by:

entrySet in interface Map<KeyType,ValueType>

get

public ValueType get(Object key)

Specified by:

get in interface Map<KeyType,ValueType>

getTypes

public Set<Class<?>> getTypes()

Get the value types that are indexed.

Returns:

which value types are indexed

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<KeyType,ValueType>

keySet

public Set<KeyType> keySet()

Specified by:

keySet in interface Map<KeyType,ValueType>

matchType

private Boolean matchType(Class<?> type,
                          Object object)

Check if the object is of the specified type, taking null into account as well.

Parameters:

type - type to check for

object - object to check

Returns:

true if the object is of the specified type

put

public ValueType put(KeyType key,
                     ValueType value)

Specified by:

put in interface Map<KeyType,ValueType>

putAll

public void putAll(Map<? extends KeyType,? extends ValueType> t)

Specified by:

putAll in interface Map<KeyType,ValueType>

rebuildIndex

public void rebuildIndex()

Rebuild internal index.

remove

public ValueType remove(Object key)

Specified by:

remove in interface Map<KeyType,ValueType>

setTypes

public void setTypes(Collection<Class<?>> newTypes)

Set which value types are indexed.

Parameters:

newTypes - which value types are indexed

size

public int size()

Specified by:

size in interface Map<KeyType,ValueType>

subMap

public <SubType extends ValueType> Map<KeyType,SubType> subMap(Class<SubType> type)

Returns an unmodifiable map of the entries whose value is of the specified type.

Type Parameters:

SubType - type of values to include in the returned map

Parameters:

type - type of values to return

Returns:

sub map of entries whose value is of type SubType or empty if the specified type is not a valid type for this map.

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<KeyType,ValueType>

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Specified by:

equals in interface Map<KeyType,ValueType>

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

values

public Collection<ValueType> values()

Specified by:

values in interface Map<KeyType,ValueType>