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fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists, and queues with a small memory footprint and fast access and insertion; it provides also big (64-bit) arrays, sets and lists, sorting algorithms, fast, practical I/O classes for binary and text files, and facilities for memory mapping large files. Note that if you have both this jar and fastutil-core.jar in your dependencies, fastutil-core.jar should be excluded.

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/* Generic definitions */
/* Assertions (useful to generate conditional code) */
/* Current type and class (and size, if applicable) */
/* Value methods */
/* Interfaces (keys) */
/* Interfaces (values) */
/* Abstract implementations (keys) */
/* Abstract implementations (values) */
/* Static containers (keys) */
/* Static containers (values) */
/* Implementations */
/* Synchronized wrappers */
/* Unmodifiable wrappers */
/* Other wrappers */
/* Methods (keys) */
/* Methods (values) */
/* Methods (keys/values) */
/* Methods that have special names depending on keys (but the special names depend on values) */
/* Equality */
/* Object/Reference-only definitions (keys) */
/* Primitive-type-only definitions (keys) */
/* Object/Reference-only definitions (values) */
/* Primitive-type-only definitions (values) */
/*		 
 * Copyright (C) 2002-2016 Sebastiano Vigna
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License. 
 */
package it.unimi.dsi.fastutil.shorts;
import it.unimi.dsi.fastutil.objects.ObjectSet;
import it.unimi.dsi.fastutil.objects.ObjectSets;
import it.unimi.dsi.fastutil.booleans.BooleanCollection;
import it.unimi.dsi.fastutil.booleans.BooleanCollections;
import it.unimi.dsi.fastutil.booleans.BooleanSets;
import java.util.Map;
/**
 * A class providing static methods and objects that do useful things with
 * type-specific maps.
 *
 * @see it.unimi.dsi.fastutil.Maps
 * @see java.util.Collections
 */
public class Short2BooleanMaps {
	private Short2BooleanMaps() {
	}
	/**
	 * An immutable class representing an empty type-specific map.
	 *
	 * 

* This class may be useful to implement your own in case you subclass a * type-specific map. */ public static class EmptyMap extends Short2BooleanFunctions.EmptyFunction implements Short2BooleanMap, java.io.Serializable, Cloneable { private static final long serialVersionUID = -7046029254386353129L; protected EmptyMap() { } public boolean containsValue(final boolean v) { return false; } public void putAll(final Map m) { throw new UnsupportedOperationException(); } @SuppressWarnings("unchecked") public ObjectSet short2BooleanEntrySet() { return ObjectSets.EMPTY_SET; } public ShortSet keySet() { return ShortSets.EMPTY_SET; } public BooleanCollection values() { return BooleanSets.EMPTY_SET; } public boolean containsValue(final Object ov) { return false; } private Object readResolve() { return EMPTY_MAP; } public Object clone() { return EMPTY_MAP; } public boolean isEmpty() { return true; } @SuppressWarnings({"rawtypes", "unchecked"}) public ObjectSet> entrySet() { return (ObjectSet) short2BooleanEntrySet(); } public int hashCode() { return 0; } public boolean equals(final Object o) { if (!(o instanceof Map)) return false; return ((Map) o).isEmpty(); } public String toString() { return "{}"; } } /** * An empty type-specific map (immutable). It is serializable and cloneable. */ public static final EmptyMap EMPTY_MAP = new EmptyMap(); /** * An immutable class representing a type-specific singleton map. * *

* This class may be useful to implement your own in case you subclass a * type-specific map. */ public static class Singleton extends Short2BooleanFunctions.Singleton implements Short2BooleanMap, java.io.Serializable, Cloneable { private static final long serialVersionUID = -7046029254386353129L; protected transient ObjectSet entries; protected transient ShortSet keys; protected transient BooleanCollection values; protected Singleton(final short key, final boolean value) { super(key, value); } public boolean containsValue(final boolean v) { return ((value) == (v)); } public boolean containsValue(final Object ov) { return ((((((Boolean) (ov)).booleanValue()))) == (value)); } public void putAll(final Map m) { throw new UnsupportedOperationException(); } public ObjectSet short2BooleanEntrySet() { if (entries == null) entries = ObjectSets .singleton((Short2BooleanMap.Entry) new SingletonEntry()); return entries; } public ShortSet keySet() { if (keys == null) keys = ShortSets.singleton(key); return keys; } public BooleanCollection values() { if (values == null) values = BooleanSets.singleton(value); return values; } protected class SingletonEntry implements Short2BooleanMap.Entry, Map.Entry { /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Short getKey() { return (Short.valueOf(Singleton.this.key)); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Boolean getValue() { return (Boolean.valueOf(Singleton.this.value)); } public short getShortKey() { return Singleton.this.key; } public boolean getBooleanValue() { return Singleton.this.value; } public boolean setValue(final boolean value) { throw new UnsupportedOperationException(); } public Boolean setValue(final Boolean value) { throw new UnsupportedOperationException(); } public boolean equals(final Object o) { if (!(o instanceof Map.Entry)) return false; Map.Entry e = (Map.Entry) o; if (e.getKey() == null || !(e.getKey() instanceof Short)) return false; if (e.getValue() == null || !(e.getValue() instanceof Boolean)) return false; return ((Singleton.this.key) == (((((Short) (e.getKey())) .shortValue())))) && ((Singleton.this.value) == (((((Boolean) (e .getValue())).booleanValue())))); } public int hashCode() { return (Singleton.this.key) ^ (Singleton.this.value ? 1231 : 1237); } public String toString() { return Singleton.this.key + "->" + Singleton.this.value; } } public boolean isEmpty() { return false; } @SuppressWarnings({"rawtypes", "unchecked"}) public ObjectSet> entrySet() { return (ObjectSet) short2BooleanEntrySet(); } public int hashCode() { return (key) ^ (value ? 1231 : 1237); } public boolean equals(final Object o) { if (o == this) return true; if (!(o instanceof Map)) return false; Map m = (Map) o; if (m.size() != 1) return false; return entrySet().iterator().next() .equals(m.entrySet().iterator().next()); } public String toString() { return "{" + key + "=>" + value + "}"; } } /** * Returns a type-specific immutable map containing only the specified pair. * The returned map is serializable and cloneable. * *

* Note that albeit the returned map is immutable, its default return value * may be changed. * * @param key * the only key of the returned map. * @param value * the only value of the returned map. * @return a type-specific immutable map containing just the pair * <key,value>. */ public static Short2BooleanMap singleton(final short key, boolean value) { return new Singleton(key, value); } /** * Returns a type-specific immutable map containing only the specified pair. * The returned map is serializable and cloneable. * *

* Note that albeit the returned map is immutable, its default return value * may be changed. * * @param key * the only key of the returned map. * @param value * the only value of the returned map. * @return a type-specific immutable map containing just the pair * <key,value>. */ public static Short2BooleanMap singleton(final Short key, final Boolean value) { return new Singleton(((key).shortValue()), ((value).booleanValue())); } /** A synchronized wrapper class for maps. */ public static class SynchronizedMap extends Short2BooleanFunctions.SynchronizedFunction implements Short2BooleanMap, java.io.Serializable { private static final long serialVersionUID = -7046029254386353129L; protected final Short2BooleanMap map; protected transient ObjectSet entries; protected transient ShortSet keys; protected transient BooleanCollection values; protected SynchronizedMap(final Short2BooleanMap m, final Object sync) { super(m, sync); this.map = m; } protected SynchronizedMap(final Short2BooleanMap m) { super(m); this.map = m; } public int size() { synchronized (sync) { return map.size(); } } public boolean containsKey(final short k) { synchronized (sync) { return map.containsKey(k); } } public boolean containsValue(final boolean v) { synchronized (sync) { return map.containsValue(v); } } public boolean defaultReturnValue() { synchronized (sync) { return map.defaultReturnValue(); } } public void defaultReturnValue(final boolean defRetValue) { synchronized (sync) { map.defaultReturnValue(defRetValue); } } public boolean put(final short k, final boolean v) { synchronized (sync) { return map.put(k, v); } } // public void putAll( final MAP KEY_VALUE_EXTENDS_GENERIC c ) { // synchronized( sync ) { map.putAll( c ); } } public void putAll(final Map m) { synchronized (sync) { map.putAll(m); } } public ObjectSet short2BooleanEntrySet() { if (entries == null) entries = ObjectSets.synchronize(map.short2BooleanEntrySet(), sync); return entries; } public ShortSet keySet() { if (keys == null) keys = ShortSets.synchronize(map.keySet(), sync); return keys; } public BooleanCollection values() { if (values == null) return BooleanCollections.synchronize(map.values(), sync); return values; } public void clear() { synchronized (sync) { map.clear(); } } public String toString() { synchronized (sync) { return map.toString(); } } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated @Override public Boolean put(final Short k, final Boolean v) { synchronized (sync) { return map.put(k, v); } } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated @Override public boolean remove(final short k) { synchronized (sync) { return map.remove(k); } } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated @Override public boolean get(final short k) { synchronized (sync) { return map.get(k); } } public boolean containsKey(final Object ok) { synchronized (sync) { return map.containsKey(ok); } } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated @Override public boolean containsValue(final Object ov) { synchronized (sync) { return map.containsValue(ov); } } public boolean isEmpty() { synchronized (sync) { return map.isEmpty(); } } public ObjectSet> entrySet() { synchronized (sync) { return map.entrySet(); } } public int hashCode() { synchronized (sync) { return map.hashCode(); } } public boolean equals(final Object o) { synchronized (sync) { return map.equals(o); } } } /** * Returns a synchronized type-specific map backed by the given * type-specific map. * * @param m * the map to be wrapped in a synchronized map. * @return a synchronized view of the specified map. * @see java.util.Collections#synchronizedMap(Map) */ public static Short2BooleanMap synchronize(final Short2BooleanMap m) { return new SynchronizedMap(m); } /** * Returns a synchronized type-specific map backed by the given * type-specific map, using an assigned object to synchronize. * * @param m * the map to be wrapped in a synchronized map. * @param sync * an object that will be used to synchronize the access to the * map. * @return a synchronized view of the specified map. * @see java.util.Collections#synchronizedMap(Map) */ public static Short2BooleanMap synchronize(final Short2BooleanMap m, final Object sync) { return new SynchronizedMap(m, sync); } /** An unmodifiable wrapper class for maps. */ public static class UnmodifiableMap extends Short2BooleanFunctions.UnmodifiableFunction implements Short2BooleanMap, java.io.Serializable { private static final long serialVersionUID = -7046029254386353129L; protected final Short2BooleanMap map; protected transient ObjectSet entries; protected transient ShortSet keys; protected transient BooleanCollection values; protected UnmodifiableMap(final Short2BooleanMap m) { super(m); this.map = m; } public int size() { return map.size(); } public boolean containsKey(final short k) { return map.containsKey(k); } public boolean containsValue(final boolean v) { return map.containsValue(v); } public boolean defaultReturnValue() { throw new UnsupportedOperationException(); } public void defaultReturnValue(final boolean defRetValue) { throw new UnsupportedOperationException(); } public boolean put(final short k, final boolean v) { throw new UnsupportedOperationException(); } // public void putAll( final MAP KEY_VALUE_EXTENDS_GENERIC c ) { throw // new UnsupportedOperationException(); } public void putAll(final Map m) { throw new UnsupportedOperationException(); } public ObjectSet short2BooleanEntrySet() { if (entries == null) entries = ObjectSets.unmodifiable(map.short2BooleanEntrySet()); return entries; } public ShortSet keySet() { if (keys == null) keys = ShortSets.unmodifiable(map.keySet()); return keys; } public BooleanCollection values() { if (values == null) return BooleanCollections.unmodifiable(map.values()); return values; } public void clear() { throw new UnsupportedOperationException(); } public String toString() { return map.toString(); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated @Override public Boolean put(final Short k, final Boolean v) { throw new UnsupportedOperationException(); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated @Override public boolean remove(final short k) { throw new UnsupportedOperationException(); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated @Override public boolean get(final short k) { return map.get(k); } public boolean containsKey(final Object ok) { return map.containsKey(ok); } public boolean containsValue(final Object ov) { return map.containsValue(ov); } public boolean isEmpty() { return map.isEmpty(); } public ObjectSet> entrySet() { return ObjectSets.unmodifiable(map.entrySet()); } } /** * Returns an unmodifiable type-specific map backed by the given * type-specific map. * * @param m * the map to be wrapped in an unmodifiable map. * @return an unmodifiable view of the specified map. * @see java.util.Collections#unmodifiableMap(Map) */ public static Short2BooleanMap unmodifiable(final Short2BooleanMap m) { return new UnmodifiableMap(m); } }





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