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@Override public Set<Characteristics> characteristics() { return EnumSet.of(Characteristics.IDENTITY_FINISH); }
@param capacity the initial capacity of the list which collects values. @return a Java stream collector which can be used to construct a LinearList
characteristics
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
public static <V> Collector<V, List<V>, List<V>> collector() { return new Collector<V, List<V>, List<V>>() { @Override public Supplier<List<V>> supplier() { return () -> new List().linear(); } @Override public BiConsumer<List<V>, V> accumulator() { return List::addLast; } @Override public BinaryOperator<List<V>> combiner() { return (a, b) -> (List<V>) a.concat(b); } @Override public Function<List<V>, List<V>> finisher() { return List::forked; } @Override public java.util.Set<Characteristics> characteristics() { return EnumSet.noneOf(Characteristics.class); } }; }
@return a Java stream collector which can be used to construct a List
collector
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
@Override public Supplier<List<V>> supplier() { return () -> new List().linear(); }
@return a Java stream collector which can be used to construct a List
supplier
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
@Override public BiConsumer<List<V>, V> accumulator() { return List::addLast; }
@return a Java stream collector which can be used to construct a List
accumulator
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
@Override public BinaryOperator<List<V>> combiner() { return (a, b) -> (List<V>) a.concat(b); }
@return a Java stream collector which can be used to construct a List
combiner
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
@Override public Function<List<V>, List<V>> finisher() { return List::forked; }
@return a Java stream collector which can be used to construct a List
finisher
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
@Override public java.util.Set<Characteristics> characteristics() { return EnumSet.noneOf(Characteristics.class); }
@return a Java stream collector which can be used to construct a List
characteristics
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
public static <V> Iterator<V> iterator(IList<V> list, long startIndex) { return Iterators.range(startIndex, list.size(), list::nth); }
@return an iterator over the list which repeatedly calls nth()
iterator
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
public static <V> IList<V> concat(IList<V> a, IList<V> b) { IList<V> result; if (a.size() == 0) { result = b; } else if (b.size() == 0) { result = a; } else if (a instanceof ConcatList) { result = a.concat(b); } else if (b instanceof ConcatList) { result = new ConcatList<>(a).concat(b); } else { result = new ConcatList<V>(a, b); } return a.isLinear() ? result.linear() : result.forked(); }
@return a concatenation of the two lists, which is linear if {@code a} is linear
concat
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
public static <V> IList<V> reverse(IList<V> l) { return Lists.from(l.size(), i -> l.nth(l.size() - (i + 1))); }
@return a concatenation of the two lists, which is linear if {@code a} is linear
reverse
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
public static <V> IList<V> sort(IList<V> l, Comparator<V> comparator) { Object[] array = l.toArray(); Arrays.sort(array, (a, b) -> comparator.compare((V) a, (V) b)); return (IList<V>) Lists.from(array); }
@return a concatenation of the two lists, which is linear if {@code a} is linear
sort
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
public static <V> IList<V> sort(IList<V> l) { return sort(l, (Comparator<V>) Comparator.naturalOrder()); }
@return a concatenation of the two lists, which is linear if {@code a} is linear
sort
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
public static <V> IList<V> concat(IList<V>... lists) { return Arrays.stream(lists).reduce(Lists::concat).orElseGet(List::new); }
@return a concatenation of all the lists
concat
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Lists.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Lists.java
MIT
public static <K, V> Map<K, V> from(IMap<K, V> map) { if (map instanceof Map) { return (Map<K, V>) map.forked(); } else { Map<K, V> result = new Map<K, V>(map.keyHash(), map.keyEquality()).linear(); map.forEach(e -> result.put(e.key(), e.value())); return result.forked(); } }
@param map another map @return an equivalent forked map, with the same equality semantics
from
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
public static <K, V> Map<K, V> from(java.util.Map<K, V> map) { return map.entrySet().stream().collect(Maps.collector(java.util.Map.Entry::getKey, java.util.Map.Entry::getValue)); }
@return a forked map with the same contents as {@code map}
from
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
public static <K, V> Map<K, V> from(Iterator<IEntry<K, V>> entries) { Map<K, V> m = new Map<K, V>().linear(); entries.forEachRemaining(e -> m.put(e.key(), e.value())); return m.forked(); }
@param entries an iterator of {@code IEntry} objects @return a forked map containing the remaining entries
from
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
public static <K, V> Map<K, V> from(IList<IEntry<K, V>> entries) { return entries.stream().collect(Maps.collector(IEntry::key, IEntry::value)); }
@param entries a list of {@code IEntry} objects @return a forked map containing these entries
from
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
public static <K, V> Map<K, V> empty() { return (Map<K, V>) EMPTY; }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
empty
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Set<K> keys() { return new Set<K>((Map<K, Void>) this); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
keys
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public ToLongFunction<K> keyHash() { return hashFn; }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
keyHash
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public BiPredicate<K, K> keyEquality() { return equalsFn; }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
keyEquality
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public V get(K key, V defaultValue) { Object val = MapNodes.get(root, 0, keyHash(key), key, equalsFn, DEFAULT_VALUE); return val == DEFAULT_VALUE ? defaultValue : (V) val; }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
get
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Map<K, V> put(K key, V value, BinaryOperator<V> merge) { return put(key, value, merge, isLinear() ? editor : new Object()); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
put
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
public Map<K, V> put(K key, V value, BinaryOperator<V> merge, Object editor) { Node<K, V> rootPrime = root.put(0, editor, keyHash(key), key, value, equalsFn, merge); if (isLinear() && editor == this.editor) { root = rootPrime; super.hash = -1; return this; } else { return new Map<K, V>(rootPrime, hashFn, equalsFn, false); } }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
put
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Map<K, V> update(K key, UnaryOperator<V> update) { return update(key, update, isLinear() ? editor : new Object()); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
update
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
public Map<K, V> update(K key, UnaryOperator<V> update, Object editor) { return put(key, update.apply(get(key, null)), (BinaryOperator<V>) Maps.MERGE_LAST_WRITE_WINS, editor); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
update
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Map<K, V> remove(K key) { return remove(key, isLinear() ? editor : new Object()); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
remove
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
public Map<K, V> remove(K key, Object editor) { Node<K, V> rootPrime = (Node<K, V>) root.remove(0, editor, keyHash(key), key, equalsFn); if (isLinear() && editor == this.editor) { root = rootPrime; super.hash = -1; return this; } else { return new Map<K, V>(rootPrime, hashFn, equalsFn, false); } }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
remove
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public boolean contains(K key) { return MapNodes.contains(root, 0, keyHash(key), key, equalsFn); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
contains
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public OptionalLong indexOf(K key) { long idx = root.indexOf(0, keyHash(key), key, keyEquality()); return idx < 0 ? OptionalLong.empty() : OptionalLong.of(idx); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
indexOf
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public IEntry<K, V> nth(long idx) { if (idx < 0 || idx >= size()) { throw new IndexOutOfBoundsException(); } return root.nth(idx); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
nth
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Map<K, V> forked() { if (isLinear()) { return new Map<>(root, hashFn, equalsFn, false); } else { return this; } }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
forked
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Map<K, V> linear() { if (isLinear()) { return this; } else { return new Map<>(root, hashFn, equalsFn, true); } }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
linear
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public <U> Map<K, U> mapValues(BiFunction<K, V, U> f) { return new Map<K, U>(root.mapVals(new Object(), f), hashFn, equalsFn, isLinear()); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
mapValues
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public List<Map<K, V>> split(int parts) { List<Map<K, V>> list = new List<Map<K, V>>().linear(); MapNodes.split(new Object(), root, (int) Math.ceil(size() / (float) parts)) .stream() .map(n -> new Map<K, V>(n, hashFn, equalsFn, false)) .forEach(list::addLast); return list.forked(); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
split
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Map<K, V> union(IMap<K, V> m) { return merge(m, Maps.MERGE_LAST_WRITE_WINS); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
union
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Map<K, V> merge(IMap<K, V> m, BinaryOperator<V> mergeFn) { if (m instanceof Map && Maps.equivEquality(this, m)) { Node<K, V> rootPrime = MapNodes.merge(0, editor, root, ((Map) m).root, equalsFn, mergeFn); return new Map<>(rootPrime, hashFn, equalsFn, isLinear()); } else { return (Map<K, V>) Maps.merge(this.clone(), m, mergeFn); } }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
merge
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Map<K, V> difference(ISet<K> keys) { if (keys instanceof Set && Maps.equivEquality(this, keys)) { return difference(((Set<K>) keys).map); } else { return (Map<K, V>) Maps.difference(this.clone(), keys); } }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
difference
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Map<K, V> intersection(ISet<K> keys) { if (keys instanceof Set && Maps.equivEquality(this, keys)) { return intersection(((Set<K>) keys).map); } else { Map<K, V> map = (Map<K, V>) Maps.intersection(new Map<K, V>(hashFn, equalsFn).linear(), this, keys); return isLinear() ? map : map.forked(); } }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
intersection
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Map<K, V> difference(IMap<K, ?> m) { if (m instanceof Map && Maps.equivEquality(this, m)) { Node<K, V> rootPrime = MapNodes.difference(0, editor, root, ((Map) m).root, equalsFn); return new Map<>(rootPrime == null ? Node.EMPTY : rootPrime, hashFn, equalsFn, isLinear()); } else { return difference(m.keys()); } }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
difference
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Map<K, V> intersection(IMap<K, ?> m) { if (m instanceof Map && Maps.equivEquality(this, m)) { Node<K, V> rootPrime = MapNodes.intersection(0, editor, root, ((Map) m).root, equalsFn); return new Map<>(rootPrime == null ? Node.EMPTY : rootPrime, hashFn, equalsFn, isLinear()); } else { return intersection(m.keys()); } }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
intersection
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public long size() { return root.size(); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
size
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public boolean isLinear() { return editor != null; }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
isLinear
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Iterator<IEntry<K, V>> iterator() { return root.iterator(); }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
iterator
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public boolean equals(IMap<K, V> m, BiPredicate<V, V> valEquals) { if (m instanceof Map && keyHash() == m.keyHash()) { return root.equals(((Map<K, V>) m).root, equalsFn, valEquals); } else { return Maps.equals(this, m, valEquals); } }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
equals
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public boolean equals(Object obj) { if (obj instanceof IMap) { return equals((IMap<K, V>) obj, Objects::equals); } return false; }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
equals
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
@Override public Map<K, V> clone() { return isLinear() ? forked().linear() : this; }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
clone
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
private int keyHash(K key) { long hash64 = hashFn.applyAsLong(key); int hash = (int) ((hash64 >> 32) ^ hash64); // make sure we don't have too many collisions in the lower bits hash ^= (hash >>> 20) ^ (hash >>> 12); hash ^= (hash >>> 7) ^ (hash >>> 4); return hash; }
Creates a map. @param hashFn a function which yields the hash value of keys @param equalsFn a function which checks equality of keys
keyHash
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Map.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Map.java
MIT
public K key() { return key; }
Utility functions for classes implementing {@link IMap}. @author ztellman
key
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
public V value() { return value; }
Utility functions for classes implementing {@link IMap}. @author ztellman
value
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public String toString() { return key + " = " + value; }
Utility functions for classes implementing {@link IMap}. @author ztellman
toString
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public int hashCode() { return Objects.hash(key, value); }
Utility functions for classes implementing {@link IMap}. @author ztellman
hashCode
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public boolean equals(Object obj) { if (obj instanceof IEntry) { IEntry<K, V> e = (IEntry<K, V>) obj; return Objects.equals(key, e.key()) && Objects.equals(value, e.value()); } return false; }
Utility functions for classes implementing {@link IMap}. @author ztellman
equals
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public long keyHash() { return keyHash; }
Utility functions for classes implementing {@link IMap}. @author ztellman
keyHash
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public int hashCode() { return Objects.hash(keyHash, key(), value()); }
Utility functions for classes implementing {@link IMap}. @author ztellman
hashCode
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public boolean equals(Object obj) { if (obj instanceof IEntry.WithHash) { IEntry.WithHash<K, V> e = (IEntry.WithHash<K, V>) obj; return keyHash == e.keyHash() && Objects.equals(key(), e.key()) && Objects.equals(value(), e.value()); } else { return false; } }
Utility functions for classes implementing {@link IMap}. @author ztellman
equals
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
public static <K, V> String toString(IMap<K, V> m) { return toString(m, Objects::toString, Objects::toString); }
Utility functions for classes implementing {@link IMap}. @author ztellman
toString
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
public static <K, V> String toString(IMap<K, V> m, Function<K, String> keyPrinter, Function<V, String> valPrinter) { StringBuilder sb = new StringBuilder("{"); Iterator<IEntry<K, V>> it = m.entries().iterator(); while (it.hasNext()) { IEntry<K, V> entry = it.next(); sb.append(keyPrinter.apply(entry.key())); sb.append(" "); sb.append(valPrinter.apply(entry.value())); if (it.hasNext()) { sb.append(", "); } } sb.append("}"); return sb.toString(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
toString
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
public static <K, V> long hash(IMap<K, V> m) { ToLongFunction<K> hashFn = m.keyHash(); return hash(m, e -> (hashFn.applyAsLong(e.key()) * 31) ^ Objects.hashCode(e.value()), Long::sum); }
Utility functions for classes implementing {@link IMap}. @author ztellman
hash
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
public static <K, V> long hash(IMap<K, V> m, ToLongFunction<IEntry<K, V>> hash, LongBinaryOperator combiner) { return m.entries().stream().mapToLong(hash).reduce(combiner).orElse(0); }
Utility functions for classes implementing {@link IMap}. @author ztellman
hash
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
public static <K, V> boolean equals(IMap<K, V> a, IMap<K, V> b) { return equals(a, b, Objects::equals); }
Utility functions for classes implementing {@link IMap}. @author ztellman
equals
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
public static <K, V> boolean equals(IMap<K, V> a, IMap<K, V> b, BiPredicate<V, V> valEquals) { if (a.size() != b.size()) { return false; } else if (a == b) { return true; } return a.entries().stream().allMatch(e -> { Object val = ((IMap<K, Object>) b).get(e.key(), DEFAULT_VALUE); return val != DEFAULT_VALUE && valEquals.test((V) val, e.value()); }); }
Utility functions for classes implementing {@link IMap}. @author ztellman
equals
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
public static <K, V> ISortedMap<K, V> from(ISortedSet<K> keys, Function<K, V> lookup) { return from(keys, lookup, () -> Iterators.map(keys.iterator(), k -> IEntry.of(k, lookup.apply(k)))); }
Utility functions for classes implementing {@link IMap}. @author ztellman
from
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
public static <K, V> ISortedMap<K, V> from( ISortedSet<K> keys, Function<K, V> lookup, Supplier<Iterator<IEntry<K, V>>> iterator ) { return new ISortedMap.Mixin<K, V>() { @Override public ISortedSet<K> keys() { return keys; } @Override public Comparator<K> comparator() { return keys.comparator(); } @Override public OptionalLong inclusiveFloorIndex(K key) { return keys.floorIndex(key); } @Override public OptionalLong ceilIndex(K key) { return keys.ceilIndex(key); } @Override public long size() { return keys.size(); } @Override public IEntry<K, V> nth(long idx) { K key = keys.nth(idx); return IEntry.of(key, lookup.apply(key)); } @Override public ISortedMap<K, V> put(K key, V value, BinaryOperator<V> merge) { return new SortedMap<K,V>(comparator()).merge(this, Maps.MERGE_LAST_WRITE_WINS).put(key, value, merge); } @Override public ISortedMap<K, V> remove(K key) { return new SortedMap<K,V>(comparator()).merge(this, Maps.MERGE_LAST_WRITE_WINS).remove(key); } @Override public ISortedMap<K, V> linear() { return new SortedMap<K,V>(comparator()).linear(); } @Override public Iterator<IEntry<K, V>> iterator() { return iterator.get(); } }; }
Utility functions for classes implementing {@link IMap}. @author ztellman
from
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public ISortedSet<K> keys() { return keys; }
Utility functions for classes implementing {@link IMap}. @author ztellman
keys
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public Comparator<K> comparator() { return keys.comparator(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
comparator
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public OptionalLong inclusiveFloorIndex(K key) { return keys.floorIndex(key); }
Utility functions for classes implementing {@link IMap}. @author ztellman
inclusiveFloorIndex
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public OptionalLong ceilIndex(K key) { return keys.ceilIndex(key); }
Utility functions for classes implementing {@link IMap}. @author ztellman
ceilIndex
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public long size() { return keys.size(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
size
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public IEntry<K, V> nth(long idx) { K key = keys.nth(idx); return IEntry.of(key, lookup.apply(key)); }
Utility functions for classes implementing {@link IMap}. @author ztellman
nth
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public ISortedMap<K, V> put(K key, V value, BinaryOperator<V> merge) { return new SortedMap<K,V>(comparator()).merge(this, Maps.MERGE_LAST_WRITE_WINS).put(key, value, merge); }
Utility functions for classes implementing {@link IMap}. @author ztellman
put
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public ISortedMap<K, V> remove(K key) { return new SortedMap<K,V>(comparator()).merge(this, Maps.MERGE_LAST_WRITE_WINS).remove(key); }
Utility functions for classes implementing {@link IMap}. @author ztellman
remove
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public ISortedMap<K, V> linear() { return new SortedMap<K,V>(comparator()).linear(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
linear
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public Iterator<IEntry<K, V>> iterator() { return iterator.get(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
iterator
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
public static <K, V> IMap<K, V> from(ISet<K> keys, Function<K, V> lookup) { return from(keys, lookup, () -> Iterators.map(keys.iterator(), k -> IEntry.of(k, lookup.apply(k)))); }
Utility functions for classes implementing {@link IMap}. @author ztellman
from
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
public static <K, V> IMap<K, V> from(ISet<K> keys, Function<K, V> lookup, Supplier<Iterator<IEntry<K, V>>> iterator) { return new IMap.Mixin<K, V>() { @Override public boolean contains(K key) { return keys.contains(key); } @Override public Iterator<IEntry<K, V>> iterator() { return iterator.get(); } @Override public OptionalLong indexOf(K key) { return keys.indexOf(key); } @Override public IEntry<K, V> nth(long idx) { K key = keys.nth(idx); return new Entry<>(key, lookup.apply(key)); } @Override public ISet<K> keys() { return keys; } @Override public long size() { return keys.size(); } @Override public ToLongFunction<K> keyHash() { return keys.valueHash(); } @Override public BiPredicate<K, K> keyEquality() { return keys.valueEquality(); } @Override public IMap<K, V> put(K key, V value, BinaryOperator<V> merge) { return Map.from(this).put(key, value, merge); } @Override public IMap<K, V> remove(K key) { return Map.from(this).remove(key); } @Override public IMap<K, V> linear() { return Map.from(this).linear(); } }; }
Utility functions for classes implementing {@link IMap}. @author ztellman
from
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public boolean contains(K key) { return keys.contains(key); }
Utility functions for classes implementing {@link IMap}. @author ztellman
contains
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public Iterator<IEntry<K, V>> iterator() { return iterator.get(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
iterator
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public OptionalLong indexOf(K key) { return keys.indexOf(key); }
Utility functions for classes implementing {@link IMap}. @author ztellman
indexOf
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public IEntry<K, V> nth(long idx) { K key = keys.nth(idx); return new Entry<>(key, lookup.apply(key)); }
Utility functions for classes implementing {@link IMap}. @author ztellman
nth
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public ISet<K> keys() { return keys; }
Utility functions for classes implementing {@link IMap}. @author ztellman
keys
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public long size() { return keys.size(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
size
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public ToLongFunction<K> keyHash() { return keys.valueHash(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
keyHash
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public BiPredicate<K, K> keyEquality() { return keys.valueEquality(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
keyEquality
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public IMap<K, V> put(K key, V value, BinaryOperator<V> merge) { return Map.from(this).put(key, value, merge); }
Utility functions for classes implementing {@link IMap}. @author ztellman
put
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public IMap<K, V> remove(K key) { return Map.from(this).remove(key); }
Utility functions for classes implementing {@link IMap}. @author ztellman
remove
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public IMap<K, V> linear() { return Map.from(this).linear(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
linear
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
public static <K, V> java.util.Map<K, V> toMap(IMap<K, V> map) { return new java.util.Map<K, V>() { @Override public int size() { return (int) map.size(); } @Override public boolean isEmpty() { return map.size() == 0; } @Override public boolean containsKey(Object key) { return map.get((K) key).isPresent(); } @Override public boolean containsValue(Object value) { return map.entries().stream().anyMatch(e -> Objects.equals(value, e.value())); } @Override public V get(Object key) { return map.get((K) key).orElse(null); } @Override public V put(K key, V value) { throw new UnsupportedOperationException(); } @Override public V remove(Object key) { throw new UnsupportedOperationException(); } @Override public void putAll(java.util.Map<? extends K, ? extends V> m) { throw new UnsupportedOperationException(); } @Override public void clear() { throw new UnsupportedOperationException(); } @Override public java.util.Set<K> keySet() { return Sets.toSet( lazyMap(map.entries(), IEntry::key), k -> map.get(k).isPresent() ); } @Override public Collection<V> values() { return Lists.toList(lazyMap(map.entries(), IEntry::value)); } @Override public java.util.Set<Entry<K, V>> entrySet() { return Sets.toSet( lazyMap(map.entries(), Maps::toEntry), e -> map.get(e.getKey()).map(v -> Objects.equals(v, e.getValue())).orElse(false) ); } @Override public String toString() { return Maps.toString(map); } @Override public boolean equals(Object obj) { if (obj instanceof java.util.Map) { java.util.Map<K, V> m = (java.util.Map<K, V>) obj; if (size() != m.size()) { return false; } else if (this == m) { return true; } return m.entrySet().stream().allMatch(e -> { Object val = ((Map) map).get(e.getKey(), DEFAULT_VALUE); return val != DEFAULT_VALUE && Objects.equals(val, e.getValue()); }); } return false; } @Override public int hashCode() { return (int) Maps.hash(map, e -> Objects.hashCode(e.key()) ^ Objects.hashCode(e.value()), (a, b) -> a + b); } }; }
Utility functions for classes implementing {@link IMap}. @author ztellman
toMap
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public int size() { return (int) map.size(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
size
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public boolean isEmpty() { return map.size() == 0; }
Utility functions for classes implementing {@link IMap}. @author ztellman
isEmpty
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public boolean containsKey(Object key) { return map.get((K) key).isPresent(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
containsKey
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public boolean containsValue(Object value) { return map.entries().stream().anyMatch(e -> Objects.equals(value, e.value())); }
Utility functions for classes implementing {@link IMap}. @author ztellman
containsValue
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public V get(Object key) { return map.get((K) key).orElse(null); }
Utility functions for classes implementing {@link IMap}. @author ztellman
get
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public V put(K key, V value) { throw new UnsupportedOperationException(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
put
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public V remove(Object key) { throw new UnsupportedOperationException(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
remove
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public void putAll(java.util.Map<? extends K, ? extends V> m) { throw new UnsupportedOperationException(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
putAll
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public void clear() { throw new UnsupportedOperationException(); }
Utility functions for classes implementing {@link IMap}. @author ztellman
clear
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public java.util.Set<K> keySet() { return Sets.toSet( lazyMap(map.entries(), IEntry::key), k -> map.get(k).isPresent() ); }
Utility functions for classes implementing {@link IMap}. @author ztellman
keySet
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public Collection<V> values() { return Lists.toList(lazyMap(map.entries(), IEntry::value)); }
Utility functions for classes implementing {@link IMap}. @author ztellman
values
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT
@Override public java.util.Set<Entry<K, V>> entrySet() { return Sets.toSet( lazyMap(map.entries(), Maps::toEntry), e -> map.get(e.getKey()).map(v -> Objects.equals(v, e.getValue())).orElse(false) ); }
Utility functions for classes implementing {@link IMap}. @author ztellman
entrySet
java
lacuna/bifurcan
src/io/lacuna/bifurcan/Maps.java
https://github.com/lacuna/bifurcan/blob/master/src/io/lacuna/bifurcan/Maps.java
MIT