Module swim.structure

Package swim.structure.collections

Class ValueReducedMap<K,V,U>

java.lang.Object

swim.structure.collections.ValueMap<K,V>

swim.structure.collections.ValueIterableMap<K,V>

swim.structure.collections.ValueOrderedMap<K,V>

swim.structure.collections.ValueReducedMap<K,V,U>

All Implemented Interfaces:

Iterable<Map.Entry<K,V>>, Map<K,V>, SortedMap<K,V>, IterableMap<K,V>, OrderedMap<K,V>, ReducedMap<K,V,U>

public class ValueReducedMap<K,V,U>
extends ValueOrderedMap<K,V>
implements ReducedMap<K,V,U>

Nested Class Summary

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 Form<U>	reducedForm

Fields inherited from class swim.structure.collections.ValueMap

inner, keyForm, valueForm

Constructor Summary

Constructors

Constructor	Description
ValueReducedMap(ReducedMap<? extends Value,? extends Value,? extends Value> inner, Form<K> keyForm, Form<V> valueForm, Form<U> reducedForm)

Method Summary

Modifier and Type	Method	Description
ReducedMap<Value,Value,Value>	inner()
<K2> ValueReducedMap<K2,V,U>	keyClass(Class<K2> keyClass)
<K2> ValueReducedMap<K2,V,U>	keyForm(Form<K2> keyForm)
U	reduced(U identity, CombinerFunction<? super V,U> accumulator, CombinerFunction<U,U> combiner)	Returns the reduction of this ReducedMap, combining all contained elements with the given accumulator and combiner functions, recomputing only what has changed since the last invocation of reduced.
<U2> ValueReducedMap<K,V,U2>	reducedClass(Class<U2> reducedClass)
Form<U>	reducedForm()
<U2> ValueReducedMap<K,V,U2>	reducedForm(Form<U2> reducedForm)
<V2> ValueReducedMap<K,V2,U>	valueClass(Class<V2> valueClass)
<V2> ValueReducedMap<K,V2,U>	valueForm(Form<V2> valueForm)

Methods inherited from class swim.structure.collections.ValueOrderedMap

comparator, firstEntry, firstKey, firstValue, getEntry, getIndex, headMap, indexOf, iterator, lastEntry, lastKey, lastValue, nextEntry, nextKey, nextValue, previousEntry, previousKey, previousValue, subMap, tailMap

Methods inherited from class swim.structure.collections.ValueIterableMap

keyIterator, valueIterator

Methods inherited from class swim.structure.collections.ValueMap

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keyForm, keySet, put, putAll, remove, size, toString, valueForm, values

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface java.util.Map

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

Methods inherited from interface swim.util.OrderedMap

clear, comparator, containsKey, containsValue, entrySet, firstEntry, firstKey, firstValue, get, getEntry, getIndex, headMap, indexOf, isEmpty, iterator, keyIterator, keySet, lastEntry, lastKey, lastValue, nextEntry, nextKey, nextValue, previousEntry, previousKey, previousValue, put, putAll, remove, size, subMap, tailMap, valueIterator, values

Field Details

reducedForm

protected Form<U> reducedForm

Constructor Details

ValueReducedMap

public ValueReducedMap(ReducedMap<? extends Value,? extends Value,? extends Value> inner,
 Form<K> keyForm,
 Form<V> valueForm,
 Form<U> reducedForm)

Method Details

inner

public ReducedMap<Value,Value,Value> inner()

Overrides:

inner in class ValueOrderedMap<K,V>

keyForm

public <K2> ValueReducedMap<K2,V,U> keyForm(Form<K2> keyForm)

Overrides:

keyForm in class ValueOrderedMap<K,V>

keyClass

public <K2> ValueReducedMap<K2,V,U> keyClass(Class<K2> keyClass)

Overrides:

keyClass in class ValueOrderedMap<K,V>

valueForm

public <V2> ValueReducedMap<K,V2,U> valueForm(Form<V2> valueForm)

Overrides:

valueForm in class ValueOrderedMap<K,V>

valueClass

public <V2> ValueReducedMap<K,V2,U> valueClass(Class<V2> valueClass)

Overrides:

valueClass in class ValueOrderedMap<K,V>

reducedForm

public Form<U> reducedForm()

reducedForm

public <U2> ValueReducedMap<K,V,U2> reducedForm(Form<U2> reducedForm)

reducedClass

public <U2> ValueReducedMap<K,V,U2> reducedClass(Class<U2> reducedClass)

reduced

public U reduced(U identity,
 CombinerFunction<? super V,U> accumulator,
 CombinerFunction<U,U> combiner)

Description copied from interface: ReducedMap

Returns the reduction of this ReducedMap, combining all contained elements with the given accumulator and combiner functions, recomputing only what has changed since the last invocation of reduced. Stores partial computations to accelerate repeated reduction of continuously mutating datasets.

Specified by:

reduced in interface ReducedMap<K,V,U>