/* 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) */
/*
* 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.floats;
import java.util.Collection;
import it.unimi.dsi.fastutil.objects.ObjectArrays;
/** A class providing static methods and objects that do useful things with type-specific collections.
*
* @see java.util.Collections
*/
public class FloatCollections {
private FloatCollections() {}
/** An immutable class representing an empty type-specific collection.
*
* <P>This class may be useful to implement your own in case you subclass
* a type-specific collection.
*/
public abstract static class EmptyCollection extends AbstractFloatCollection {
protected EmptyCollection() {}
public boolean add( float k ) { throw new UnsupportedOperationException(); }
public boolean contains( float k ) { return false; }
public Object[] toArray() { return ObjectArrays.EMPTY_ARRAY; }
public float[] toFloatArray( float[] a ) { return a; }
public float[] toFloatArray() { return FloatArrays.EMPTY_ARRAY; }
public boolean rem( float k ) { throw new UnsupportedOperationException(); }
public boolean addAll( FloatCollection c ) { throw new UnsupportedOperationException(); }
public boolean removeAll( FloatCollection c ) { throw new UnsupportedOperationException(); }
public boolean retainAll( FloatCollection c ) { throw new UnsupportedOperationException(); }
public boolean containsAll( FloatCollection c ) { return c.isEmpty(); }
@SuppressWarnings("unchecked")
public FloatListIterator iterator() { return FloatIterators.EMPTY_ITERATOR; }
public int size() { return 0; }
public void clear() {}
public int hashCode() { return 0; }
public boolean equals( Object o ) {
if ( o == this ) return true;
if ( ! ( o instanceof Collection ) ) return false;
return ((Collection<?>)o).isEmpty();
}
}
/** A synchronized wrapper class for collections. */
public static class SynchronizedCollection implements FloatCollection , java.io.Serializable {
public static final long serialVersionUID = -7046029254386353129L;
protected final FloatCollection collection;
protected final Object sync;
protected SynchronizedCollection( final FloatCollection c, final Object sync ) {
if ( c == null ) throw new NullPointerException();
this.collection = c;
this.sync = sync;
}
protected SynchronizedCollection( final FloatCollection c ) {
if ( c == null ) throw new NullPointerException();
this.collection = c;
this.sync = this;
}
public int size() { synchronized( sync ) { return collection.size(); } }
public boolean isEmpty() { synchronized( sync ) { return collection.isEmpty(); } }
public boolean contains( final float o ) { synchronized( sync ) { return collection.contains( o ); } }
public float[] toFloatArray() { synchronized( sync ) { return collection.toFloatArray(); } }
public Object[] toArray() { synchronized( sync ) { return collection.toArray(); } }
public float[] toFloatArray( final float[] a ) { synchronized( sync ) { return collection.toFloatArray( a ); } }
public float[] toArray( final float[] a ) { synchronized( sync ) { return collection.toFloatArray( a ); } }
public boolean addAll( final FloatCollection c ) { synchronized( sync ) { return collection.addAll( c ); } }
public boolean containsAll( final FloatCollection c ) { synchronized( sync ) { return collection.containsAll( c ); } }
public boolean removeAll( final FloatCollection c ) { synchronized( sync ) { return collection.removeAll( c ); } }
public boolean retainAll( final FloatCollection c ) { synchronized( sync ) { return collection.retainAll( c ); } }
public boolean add( final Float k ) { synchronized( sync ) { return collection.add( k ); } }
public boolean contains( final Object k ) { synchronized( sync ) { return collection.contains( k ); } }
public <T> T[] toArray( final T[] a ) { synchronized( sync ) { return collection.toArray( a ); } }
public FloatIterator iterator() { return collection.iterator(); }
@Deprecated
public FloatIterator floatIterator() { return iterator(); }
public boolean add( final float k ) { synchronized( sync ) { return collection.add( k ); } }
public boolean rem( final float k ) { synchronized( sync ) { return collection.rem( k ); } }
public boolean remove( final Object ok ) { synchronized( sync ) { return collection.remove( ok ); } }
public boolean addAll( final Collection<? extends Float> c ) { synchronized( sync ) { return collection.addAll( c ); } }
public boolean containsAll( final Collection<?> c ) { synchronized( sync ) { return collection.containsAll( c ); } }
public boolean removeAll( final Collection<?> c ) { synchronized( sync ) { return collection.removeAll( c ); } }
public boolean retainAll( final Collection<?> c ) { synchronized( sync ) { return collection.retainAll( c ); } }
public void clear() { synchronized( sync ) { collection.clear(); } }
public String toString() { synchronized( sync ) { return collection.toString(); } }
}
/** Returns a synchronized collection backed by the specified collection.
*
* @param c the collection to be wrapped in a synchronized collection.
* @return a synchronized view of the specified collection.
* @see java.util.Collections#synchronizedCollection(Collection)
*/
public static FloatCollection synchronize( final FloatCollection c ) { return new SynchronizedCollection ( c ); }
/** Returns a synchronized collection backed by the specified collection, using an assigned object to synchronize.
*
* @param c the collection to be wrapped in a synchronized collection.
* @param sync an object that will be used to synchronize the list access.
* @return a synchronized view of the specified collection.
* @see java.util.Collections#synchronizedCollection(Collection)
*/
public static FloatCollection synchronize( final FloatCollection c, final Object sync ) { return new SynchronizedCollection ( c, sync ); }
/** An unmodifiable wrapper class for collections. */
public static class UnmodifiableCollection implements FloatCollection , java.io.Serializable {
public static final long serialVersionUID = -7046029254386353129L;
protected final FloatCollection collection;
protected UnmodifiableCollection( final FloatCollection c ) {
if ( c == null ) throw new NullPointerException();
this.collection = c;
}
public int size() { return collection.size(); }
public boolean isEmpty() { return collection.isEmpty(); }
public boolean contains( final float o ) { return collection.contains( o ); }
public FloatIterator iterator() { return FloatIterators.unmodifiable( collection.iterator() ); }
@Deprecated
public FloatIterator floatIterator() { return iterator(); }
public boolean add( final float k ) { throw new UnsupportedOperationException(); }
public boolean remove( final Object ok ) { throw new UnsupportedOperationException(); }
public boolean addAll( final Collection<? extends Float> c ) { throw new UnsupportedOperationException(); }
public boolean containsAll( final Collection<?> c ) { return collection.containsAll( c ); }
public boolean removeAll( final Collection<?> c ) { throw new UnsupportedOperationException(); }
public boolean retainAll( final Collection<?> c ) { throw new UnsupportedOperationException(); }
public void clear() { throw new UnsupportedOperationException(); }
public String toString() { return collection.toString(); }
public <T> T[] toArray( final T[] a ) { return collection.toArray( a ); }
public Object[] toArray() { return collection.toArray(); }
public float[] toFloatArray() { return collection.toFloatArray(); }
public float[] toFloatArray( final float[] a ) { return collection.toFloatArray( a ); }
public float[] toArray( final float[] a ) { return collection.toArray( a ); }
public boolean rem( final float k ) { throw new UnsupportedOperationException(); }
public boolean addAll( final FloatCollection c ) { throw new UnsupportedOperationException(); }
public boolean containsAll( final FloatCollection c ) { return collection.containsAll( c ); }
public boolean removeAll( final FloatCollection c ) { throw new UnsupportedOperationException(); }
public boolean retainAll( final FloatCollection c ) { throw new UnsupportedOperationException(); }
public boolean add( final Float k ) { throw new UnsupportedOperationException(); }
public boolean contains( final Object k ) { return collection.contains( k ); }
}
/** Returns an unmodifiable collection backed by the specified collection.
*
* @param c the collection to be wrapped in an unmodifiable collection.
* @return an unmodifiable view of the specified collection.
* @see java.util.Collections#unmodifiableCollection(Collection)
*/
public static FloatCollection unmodifiable( final FloatCollection c ) { return new UnmodifiableCollection ( c ); }
}
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