/* 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.chars;
import it.unimi.dsi.fastutil.bytes.ByteCollection;
import it.unimi.dsi.fastutil.objects.ObjectSet;
import it.unimi.dsi.fastutil.objects.ObjectIterator;
import java.util.Map;
/** A type-specific {@link Map}; provides some additional methods that use polymorphism to avoid (un)boxing, and handling of a default return value.
*
* <P>Besides extending the corresponding type-specific {@linkplain it.unimi.dsi.fastutil.Function function}, this interface strengthens {@link #entrySet()},
* {@link #keySet()} and {@link #values()}. Maps returning entry sets of type {@link FastEntrySet} support also fast iteration.
*
* <P>A submap or subset may or may not have an
* independent default return value (which however must be initialized to the
* default return value of the originator).
*
* @see Map
*/
public interface Char2ByteMap extends Char2ByteFunction , Map<Character,Byte> {
/** An entry set providing fast iteration.
*
* <p>In some cases (e.g., hash-based classes) iteration over an entry set requires the creation
* of a large number of {@link Entry} objects. Some <code>fastutil</code>
* maps might return {@linkplain #entrySet() entry set} objects of type {@link FastEntrySet FastEntrySet}: in this case, {@link #fastIterator() fastIterator()}
* will return an iterator that is guaranteed not to create a large number of objects, <em>possibly
* by returning always the same entry</em> (of course, mutated).
*/
public interface FastEntrySet extends ObjectSet<Char2ByteMap.Entry > {
/** Returns a fast iterator over this entry set; the iterator might return always the same entry object, suitably mutated.
*
* @return a fast iterator over this entry set; the iterator might return always the same {@link Entry} object, suitably mutated.
*/
public ObjectIterator<Char2ByteMap.Entry > fastIterator();
}
/** Returns a set view of the mappings contained in this map.
* <P>Note that this specification strengthens the one given in {@link Map#entrySet()}.
*
* @return a set view of the mappings contained in this map.
* @see Map#entrySet()
*/
ObjectSet<Map.Entry<Character, Byte>> entrySet();
/** Returns a type-specific set view of the mappings contained in this map.
*
* <p>This method is necessary because there is no inheritance along
* type parameters: it is thus impossible to strengthen {@link #entrySet()}
* so that it returns an {@link it.unimi.dsi.fastutil.objects.ObjectSet}
* of objects of type {@link Entry} (the latter makes it possible to
* access keys and values with type-specific methods).
*
* @return a type-specific set view of the mappings contained in this map.
* @see #entrySet()
*/
ObjectSet<Char2ByteMap.Entry > char2ByteEntrySet();
/** Returns a set view of the keys contained in this map.
* <P>Note that this specification strengthens the one given in {@link Map#keySet()}.
*
* @return a set view of the keys contained in this map.
* @see Map#keySet()
*/
CharSet keySet();
/** Returns a set view of the values contained in this map.
* <P>Note that this specification strengthens the one given in {@link Map#values()}.
*
* @return a set view of the values contained in this map.
* @see Map#values()
*/
ByteCollection values();
/**
* @see Map#containsValue(Object)
*/
boolean containsValue( byte value );
/** A type-specific {@link java.util.Map.Entry}; provides some additional methods
* that use polymorphism to avoid (un)boxing.
*
* @see java.util.Map.Entry
*/
interface Entry extends Map.Entry <Character,Byte> {
/**
* @see java.util.Map.Entry#getKey()
*/
char getCharKey();
/**
* @see java.util.Map.Entry#setValue(Object)
*/
byte setValue(byte value);
/**
* @see java.util.Map.Entry#getValue()
*/
byte getByteValue();
}
}
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