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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.doubles;
import it.unimi.dsi.fastutil.objects.ObjectSortedSet;
import it.unimi.dsi.fastutil.objects.ObjectSortedSets;
import java.util.Comparator;
import java.util.Map;
import java.util.SortedMap;
import java.util.NoSuchElementException;
/**
 * A class providing static methods and objects that do useful things with
 * type-specific sorted maps.
 *
 * @see java.util.Collections
 */
public class Double2FloatSortedMaps {
	private Double2FloatSortedMaps() {
	}
	/**
	 * Returns a comparator for entries based on a given comparator on keys.
	 *
	 * @param comparator
	 *            a comparator on keys.
	 * @return the associated comparator on entries.
	 */
	public static Comparator> entryComparator(
			final DoubleComparator comparator) {
		return new Comparator>() {
			public int compare(Map.Entry x, Map.Entry y) {
				return comparator.compare(x.getKey(), y.getKey());
			}
		};
	}
	/**
	 * An immutable class representing an empty type-specific sorted map.
	 *
	 * 

* This class may be useful to implement your own in case you subclass a * type-specific sorted map. */ public static class EmptySortedMap extends Double2FloatMaps.EmptyMap implements Double2FloatSortedMap, java.io.Serializable, Cloneable { private static final long serialVersionUID = -7046029254386353129L; protected EmptySortedMap() { } public DoubleComparator comparator() { return null; } @SuppressWarnings("unchecked") public ObjectSortedSet double2FloatEntrySet() { return ObjectSortedSets.EMPTY_SET; } @SuppressWarnings("unchecked") public ObjectSortedSet> entrySet() { return ObjectSortedSets.EMPTY_SET; } public DoubleSortedSet keySet() { return DoubleSortedSets.EMPTY_SET; } public Double2FloatSortedMap subMap(final double from, final double to) { return EMPTY_MAP; } public Double2FloatSortedMap headMap(final double to) { return EMPTY_MAP; } public Double2FloatSortedMap tailMap(final double from) { return EMPTY_MAP; } public double firstDoubleKey() { throw new NoSuchElementException(); } public double lastDoubleKey() { throw new NoSuchElementException(); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Double2FloatSortedMap headMap(Double oto) { return headMap(((oto).doubleValue())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Double2FloatSortedMap tailMap(Double ofrom) { return tailMap(((ofrom).doubleValue())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Double2FloatSortedMap subMap(Double ofrom, Double oto) { return subMap(((ofrom).doubleValue()), ((oto).doubleValue())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Double firstKey() { return (Double.valueOf(firstDoubleKey())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Double lastKey() { return (Double.valueOf(lastDoubleKey())); } } /** * An empty sorted map (immutable). It is serializable and cloneable. */ public static final EmptySortedMap EMPTY_MAP = new EmptySortedMap(); /** * An immutable class representing a type-specific singleton sorted map. * *

* This class may be useful to implement your own in case you subclass a * type-specific sorted map. */ public static class Singleton extends Double2FloatMaps.Singleton implements Double2FloatSortedMap, java.io.Serializable, Cloneable { private static final long serialVersionUID = -7046029254386353129L; protected final DoubleComparator comparator; protected Singleton(final double key, final float value, DoubleComparator comparator) { super(key, value); this.comparator = comparator; } protected Singleton(final double key, final float value) { this(key, value, null); } final int compare(final double k1, final double k2) { return comparator == null ? (Double.compare((k1), (k2))) : comparator.compare(k1, k2); } public DoubleComparator comparator() { return comparator; } public ObjectSortedSet double2FloatEntrySet() { if (entries == null) entries = ObjectSortedSets .singleton( (Double2FloatMap.Entry) new SingletonEntry(), (Comparator) entryComparator(comparator)); return (ObjectSortedSet) entries; } @SuppressWarnings({"rawtypes", "unchecked"}) public ObjectSortedSet> entrySet() { return (ObjectSortedSet) double2FloatEntrySet(); } public DoubleSortedSet keySet() { if (keys == null) keys = DoubleSortedSets.singleton(key, comparator); return (DoubleSortedSet) keys; } public Double2FloatSortedMap subMap(final double from, final double to) { if (compare(from, key) <= 0 && compare(key, to) < 0) return this; return EMPTY_MAP; } public Double2FloatSortedMap headMap(final double to) { if (compare(key, to) < 0) return this; return EMPTY_MAP; } public Double2FloatSortedMap tailMap(final double from) { if (compare(from, key) <= 0) return this; return EMPTY_MAP; } public double firstDoubleKey() { return key; } public double lastDoubleKey() { return key; } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Double2FloatSortedMap headMap(Double oto) { return headMap(((oto).doubleValue())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Double2FloatSortedMap tailMap(Double ofrom) { return tailMap(((ofrom).doubleValue())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Double2FloatSortedMap subMap(Double ofrom, Double oto) { return subMap(((ofrom).doubleValue()), ((oto).doubleValue())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Double firstKey() { return (Double.valueOf(firstDoubleKey())); } /** * {@inheritDoc} * * @deprecated Please use the corresponding type-specific method * instead. */ @Deprecated public Double lastKey() { return (Double.valueOf(lastDoubleKey())); } } /** * Returns a type-specific immutable sorted map containing only the * specified pair. The returned sorted 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 sorted map. * @param value * the only value of the returned sorted map. * @return a type-specific immutable sorted map containing just the pair * <key,value>. */ public static Double2FloatSortedMap singleton(final Double key, Float value) { return new Singleton(((key).doubleValue()), ((value).floatValue())); } /** * RETURNS a type-specific immutable sorted map containing only the * specified pair. The returned sorted 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 sorted map. * @param value * the only value of the returned sorted map. * @param comparator * the comparator to use in the returned sorted map. * @return a type-specific immutable sorted map containing just the pair * <key,value>. */ public static Double2FloatSortedMap singleton(final Double key, Float value, DoubleComparator comparator) { return new Singleton(((key).doubleValue()), ((value).floatValue()), comparator); } /** * Returns a type-specific immutable sorted map containing only the * specified pair. The returned sorted 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 sorted map. * @param value * the only value of the returned sorted map. * @return a type-specific immutable sorted map containing just the pair * <key,value>. */ public static Double2FloatSortedMap singleton(final double key, final float value) { return new Singleton(key, value); } /** * Returns a type-specific immutable sorted map containing only the * specified pair. The returned sorted 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 sorted map. * @param value * the only value of the returned sorted map. * @param comparator * the comparator to use in the returned sorted map. * @return a type-specific immutable sorted map containing just the pair * <key,value>. */ public static Double2FloatSortedMap singleton(final double key, final float value, DoubleComparator comparator) { return new Singleton(key, value, comparator); } /** A synchronized wrapper class for sorted maps. */ public static class SynchronizedSortedMap extends Double2FloatMaps.SynchronizedMap implements Double2FloatSortedMap, java.io.Serializable { private static final long serialVersionUID = -7046029254386353129L; protected final Double2FloatSortedMap sortedMap; protected SynchronizedSortedMap(final Double2FloatSortedMap m, final Object sync) { super(m, sync); sortedMap = m; } protected SynchronizedSortedMap(final Double2FloatSortedMap m) { super(m); sortedMap = m; } public DoubleComparator comparator() { synchronized (sync) { return sortedMap.comparator(); } } public ObjectSortedSet double2FloatEntrySet() { if (entries == null) entries = ObjectSortedSets.synchronize( sortedMap.double2FloatEntrySet(), sync); return (ObjectSortedSet) entries; } @SuppressWarnings({"rawtypes", "unchecked"}) public ObjectSortedSet> entrySet() { return (ObjectSortedSet) double2FloatEntrySet(); } public DoubleSortedSet keySet() { if (keys == null) keys = DoubleSortedSets.synchronize(sortedMap.keySet(), sync); return (DoubleSortedSet) keys; } public Double2FloatSortedMap subMap(final double from, final double to) { return new SynchronizedSortedMap(sortedMap.subMap(from, to), sync); } public Double2FloatSortedMap headMap(final double to) { return new SynchronizedSortedMap(sortedMap.headMap(to), sync); } public Double2FloatSortedMap tailMap(final double from) { return new SynchronizedSortedMap(sortedMap.tailMap(from), sync); } public double firstDoubleKey() { synchronized (sync) { return sortedMap.firstDoubleKey(); } } public double lastDoubleKey() { synchronized (sync) { return sortedMap.lastDoubleKey(); } } public Double firstKey() { synchronized (sync) { return sortedMap.firstKey(); } } public Double lastKey() { synchronized (sync) { return sortedMap.lastKey(); } } public Double2FloatSortedMap subMap(final Double from, final Double to) { return new SynchronizedSortedMap(sortedMap.subMap(from, to), sync); } public Double2FloatSortedMap headMap(final Double to) { return new SynchronizedSortedMap(sortedMap.headMap(to), sync); } public Double2FloatSortedMap tailMap(final Double from) { return new SynchronizedSortedMap(sortedMap.tailMap(from), sync); } } /** * Returns a synchronized type-specific sorted map backed by the given * type-specific sorted map. * * @param m * the sorted map to be wrapped in a synchronized sorted map. * @return a synchronized view of the specified sorted map. * @see java.util.Collections#synchronizedSortedMap(SortedMap) */ public static Double2FloatSortedMap synchronize( final Double2FloatSortedMap m) { return new SynchronizedSortedMap(m); } /** * Returns a synchronized type-specific sorted map backed by the given * type-specific sorted map, using an assigned object to synchronize. * * @param m * the sorted map to be wrapped in a synchronized sorted map. * @param sync * an object that will be used to synchronize the access to the * sorted sorted map. * @return a synchronized view of the specified sorted map. * @see java.util.Collections#synchronizedSortedMap(SortedMap) */ public static Double2FloatSortedMap synchronize( final Double2FloatSortedMap m, final Object sync) { return new SynchronizedSortedMap(m, sync); } /** An unmodifiable wrapper class for sorted maps. */ public static class UnmodifiableSortedMap extends Double2FloatMaps.UnmodifiableMap implements Double2FloatSortedMap, java.io.Serializable { private static final long serialVersionUID = -7046029254386353129L; protected final Double2FloatSortedMap sortedMap; protected UnmodifiableSortedMap(final Double2FloatSortedMap m) { super(m); sortedMap = m; } public DoubleComparator comparator() { return sortedMap.comparator(); } public ObjectSortedSet double2FloatEntrySet() { if (entries == null) entries = ObjectSortedSets.unmodifiable(sortedMap .double2FloatEntrySet()); return (ObjectSortedSet) entries; } @SuppressWarnings({"rawtypes", "unchecked"}) public ObjectSortedSet> entrySet() { return (ObjectSortedSet) double2FloatEntrySet(); } public DoubleSortedSet keySet() { if (keys == null) keys = DoubleSortedSets.unmodifiable(sortedMap.keySet()); return (DoubleSortedSet) keys; } public Double2FloatSortedMap subMap(final double from, final double to) { return new UnmodifiableSortedMap(sortedMap.subMap(from, to)); } public Double2FloatSortedMap headMap(final double to) { return new UnmodifiableSortedMap(sortedMap.headMap(to)); } public Double2FloatSortedMap tailMap(final double from) { return new UnmodifiableSortedMap(sortedMap.tailMap(from)); } public double firstDoubleKey() { return sortedMap.firstDoubleKey(); } public double lastDoubleKey() { return sortedMap.lastDoubleKey(); } public Double firstKey() { return sortedMap.firstKey(); } public Double lastKey() { return sortedMap.lastKey(); } public Double2FloatSortedMap subMap(final Double from, final Double to) { return new UnmodifiableSortedMap(sortedMap.subMap(from, to)); } public Double2FloatSortedMap headMap(final Double to) { return new UnmodifiableSortedMap(sortedMap.headMap(to)); } public Double2FloatSortedMap tailMap(final Double from) { return new UnmodifiableSortedMap(sortedMap.tailMap(from)); } } /** * Returns an unmodifiable type-specific sorted map backed by the given * type-specific sorted map. * * @param m * the sorted map to be wrapped in an unmodifiable sorted map. * @return an unmodifiable view of the specified sorted map. * @see java.util.Collections#unmodifiableSortedMap(SortedMap) */ public static Double2FloatSortedMap unmodifiable( final Double2FloatSortedMap m) { return new UnmodifiableSortedMap(m); } }





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