/* 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) */
/*
* fastutil: Fast & compact type-specific collections for Java
*
* Copyright (C) 2002-2008 Sebastiano Vigna
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
package it.unimi.dsi.fastutil.longs;
import it.unimi.dsi.fastutil.objects.ObjectSet;
import it.unimi.dsi.fastutil.objects.ObjectSets;
import it.unimi.dsi.fastutil.doubles.DoubleCollection;
import it.unimi.dsi.fastutil.doubles.DoubleCollections;
import it.unimi.dsi.fastutil.doubles.DoubleSets;
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 Long2DoubleMaps {
private Long2DoubleMaps() {}
/** An immutable class representing an empty type-specific map.
*
* <P>This class may be useful to implement your own in case you subclass
* a type-specific map.
*/
public static class EmptyMap extends Long2DoubleFunctions.EmptyFunction implements Long2DoubleMap , java.io.Serializable, Cloneable {
public static final long serialVersionUID = -7046029254386353129L;
protected EmptyMap() {}
public boolean containsValue( final double v ) { return false; }
public void putAll( final Map<? extends Long, ? extends Double> m ) { throw new UnsupportedOperationException(); }
@SuppressWarnings("unchecked")
public ObjectSet<Long2DoubleMap.Entry > long2DoubleEntrySet() { return ObjectSets.EMPTY_SET; }
@SuppressWarnings("unchecked")
public LongSet keySet() { return LongSets.EMPTY_SET; }
@SuppressWarnings("unchecked")
public DoubleCollection values() { return DoubleSets.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("unchecked")
public ObjectSet<Map.Entry<Long, Double>> entrySet() { return (ObjectSet)long2DoubleEntrySet(); }
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. */
@SuppressWarnings("unchecked")
public static final EmptyMap EMPTY_MAP = new EmptyMap();
/** An immutable class representing a type-specific singleton map.
*
* <P>This class may be useful to implement your own in case you subclass
* a type-specific map.
*/
public static class Singleton extends Long2DoubleFunctions.Singleton implements Long2DoubleMap , java.io.Serializable, Cloneable {
public static final long serialVersionUID = -7046029254386353129L;
protected transient volatile ObjectSet<Long2DoubleMap.Entry > entries;
protected transient volatile LongSet keys;
protected transient volatile DoubleCollection values;
protected Singleton( final long key, final double value ) {
super( key, value );
}
public boolean containsValue( final double v ) { return ( (value) == (v) ); }
public boolean containsValue( final Object ov ) { return ( (((((Double)(ov)).doubleValue()))) == (value) ); }
public void putAll( final Map<? extends Long, ? extends Double> m ) { throw new UnsupportedOperationException(); }
public ObjectSet<Long2DoubleMap.Entry > long2DoubleEntrySet() { if ( entries == null ) entries = ObjectSets.singleton( (Long2DoubleMap.Entry )new SingletonEntry() ); return entries; }
public LongSet keySet() { if ( keys == null ) keys = LongSets.singleton( key ); return keys; }
public DoubleCollection values() { if ( values == null ) values = DoubleSets.singleton( value ); return values; }
protected class SingletonEntry implements Long2DoubleMap.Entry , Map.Entry<Long,Double> {
public Long getKey() { return (Long.valueOf(Singleton.this.key)); }
public Double getValue() { return (Double.valueOf(Singleton.this.value)); }
public long getLongKey() { return Singleton.this.key; }
public double getDoubleValue() { return Singleton.this.value; }
public double setValue( final double value ) { throw new UnsupportedOperationException(); }
public Double setValue( final Double value ) { throw new UnsupportedOperationException(); }
public boolean equals( final Object o ) {
if (!(o instanceof Map.Entry)) return false;
Map.Entry<?,?> e = (Map.Entry<?,?>)o;
return ( (Singleton.this.key) == (((((Long)(e.getKey())).longValue()))) ) && ( (Singleton.this.value) == (((((Double)(e.getValue())).doubleValue()))) );
}
public int hashCode() { return it.unimi.dsi.fastutil.HashCommon.long2int(Singleton.this.key) ^ it.unimi.dsi.fastutil.HashCommon.double2int(Singleton.this.value); }
public String toString() { return Singleton.this.key + "->" + Singleton.this.value; }
}
public boolean isEmpty() { return false; }
@SuppressWarnings("unchecked")
public ObjectSet<Map.Entry<Long, Double>> entrySet() { return (ObjectSet)long2DoubleEntrySet(); }
public int hashCode() { return it.unimi.dsi.fastutil.HashCommon.long2int(key) ^ it.unimi.dsi.fastutil.HashCommon.double2int(value); }
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.
*
* <P>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 <code><key,value></code>.
*/
public static Long2DoubleMap singleton( final long key, double value ) {
return new Singleton ( key, value );
}
/** Returns a type-specific immutable map containing only the specified pair. The returned map is serializable and cloneable.
*
* <P>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 <code><key,value></code>.
*/
public static Long2DoubleMap singleton( final Long key, final Double value ) {
return new Singleton ( ((key).longValue()), ((value).doubleValue()) );
}
/** A synchronized wrapper class for maps. */
public static class SynchronizedMap extends Long2DoubleFunctions.SynchronizedFunction implements Long2DoubleMap , java.io.Serializable {
public static final long serialVersionUID = -7046029254386353129L;
protected final Long2DoubleMap map;
protected transient volatile ObjectSet<Long2DoubleMap.Entry > entries;
protected transient volatile LongSet keys;
protected transient volatile DoubleCollection values;
protected SynchronizedMap( final Long2DoubleMap m, final Object sync ) {
super( m, sync );
this.map = m;
}
protected SynchronizedMap( final Long2DoubleMap m ) {
super( m );
this.map = m;
}
public int size() { synchronized( sync ) { return map.size(); } }
public boolean containsKey( final long k ) { synchronized( sync ) { return map.containsKey( k ); } }
public boolean containsValue( final double v ) { synchronized( sync ) { return map.containsValue( v ); } }
public double defaultReturnValue() { synchronized( sync ) { return map.defaultReturnValue(); } }
public void defaultReturnValue( final double defRetValue ) { synchronized( sync ) { map.defaultReturnValue( defRetValue ); } }
public double put( final long k, final double 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<? extends Long, ? extends Double> m ) { synchronized( sync ) { map.putAll( m ); } }
public ObjectSet<Long2DoubleMap.Entry > long2DoubleEntrySet() { if ( entries == null ) entries = ObjectSets.synchronize( map.long2DoubleEntrySet(), sync ); return entries; }
public LongSet keySet() { if ( keys == null ) keys = LongSets.synchronize( map.keySet(), sync ); return keys; }
public DoubleCollection values() { if ( values == null ) return DoubleCollections.synchronize( map.values(), sync ); return values; }
public void clear() { synchronized( sync ) { map.clear(); } }
public String toString() { synchronized( sync ) { return map.toString(); } }
public Double put( final Long k, final Double v ) { synchronized( sync ) { return map.put( k, v ); } }
public double remove( final long k ) { synchronized( sync ) { return map.remove( k ); } }
public double get( final long k ) { synchronized( sync ) { return map.get( k ); } }
public boolean containsKey( final Object ok ) { synchronized( sync ) { return map.containsKey( ok ); } }
public boolean containsValue( final Object ov ) { synchronized( sync ) { return map.containsValue( ov ); } }
public boolean isEmpty() { synchronized( sync ) { return map.isEmpty(); } }
public ObjectSet<Map.Entry<Long, Double>> 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 Long2DoubleMap synchronize( final Long2DoubleMap 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 Long2DoubleMap synchronize( final Long2DoubleMap m, final Object sync ) { return new SynchronizedMap ( m, sync ); }
/** An unmodifiable wrapper class for maps. */
public static class UnmodifiableMap extends Long2DoubleFunctions.UnmodifiableFunction implements Long2DoubleMap , java.io.Serializable {
public static final long serialVersionUID = -7046029254386353129L;
protected final Long2DoubleMap map;
protected transient volatile ObjectSet<Long2DoubleMap.Entry > entries;
protected transient volatile LongSet keys;
protected transient volatile DoubleCollection values;
protected UnmodifiableMap( final Long2DoubleMap m ) {
super( m );
this.map = m;
}
public int size() { return map.size(); }
public boolean containsKey( final long k ) { return map.containsKey( k ); }
public boolean containsValue( final double v ) { return map.containsValue( v ); }
public double defaultReturnValue() { throw new UnsupportedOperationException(); }
public void defaultReturnValue( final double defRetValue ) { throw new UnsupportedOperationException(); }
public double put( final long k, final double v ) { throw new UnsupportedOperationException(); }
//public void putAll( final MAP KEY_VALUE_EXTENDS_GENERIC c ) { throw new UnsupportedOperationException(); }
public void putAll( final Map<? extends Long, ? extends Double> m ) { throw new UnsupportedOperationException(); }
public ObjectSet<Long2DoubleMap.Entry > long2DoubleEntrySet() { if ( entries == null ) entries = ObjectSets.unmodifiable( map.long2DoubleEntrySet() ); return entries; }
public LongSet keySet() { if ( keys == null ) keys = LongSets.unmodifiable( map.keySet() ); return keys; }
public DoubleCollection values() { if ( values == null ) return DoubleCollections.unmodifiable( map.values() ); return values; }
public void clear() { throw new UnsupportedOperationException(); }
public String toString() { return map.toString(); }
public Double put( final Long k, final Double v ) { throw new UnsupportedOperationException(); }
public double remove( final long k ) { throw new UnsupportedOperationException(); }
public double get( final long 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<Map.Entry<Long, Double>> 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 Long2DoubleMap unmodifiable( final Long2DoubleMap m ) { return new UnmodifiableMap ( m ); }
}
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