org.eclipse.collections.api.map.primitive.DoubleCharMap Maven / Gradle / Ivy
/*
* Copyright (c) 2021 Goldman Sachs.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompany this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.eclipse.collections.api.map.primitive;
import java.util.Map;
import org.eclipse.collections.api.LazyDoubleIterable;
import org.eclipse.collections.api.RichIterable;
import org.eclipse.collections.api.block.predicate.primitive.DoubleCharPredicate;
import org.eclipse.collections.api.block.procedure.primitive.DoubleCharProcedure;
import org.eclipse.collections.api.block.procedure.primitive.DoubleProcedure;
import org.eclipse.collections.api.set.primitive.MutableDoubleSet;
import org.eclipse.collections.api.tuple.primitive.DoubleCharPair;
/**
* This file was automatically generated from template file primitivePrimitiveMap.stg.
*
* @since 3.0.
*/
public interface DoubleCharMap extends CharValuesMap
{
/**
* Retrieves the value associated with the key. If no mapping exists for the key,
* the default value (usually {@code 0}) is returned.
* @param key the key
* @return the value associated with the key, or the default value if no such
* mapping exists
*/
char get(double key);
/**
* Retrieves the value associated with the key, returning the specified default
* value if no such mapping exists.
* @param key the key
* @param ifAbsent the default value to return if no mapping exists for {@code key}
* @return the value associated with the key, or {@code ifAbsent} if no such
* mapping exists.
*/
char getIfAbsent(double key, char ifAbsent);
/**
* Retrieves the value associated with the key, throwing an {@link IllegalStateException}
* if no such mapping exists.
* @param key the key
* @return the value associated with the key
* @throws IllegalStateException if no mapping exists for the key
*/
char getOrThrow(double key);
/**
* Returns whether or not the key is present in the map.
* @param key the key
* @return if a mapping exists in this map for the key
*/
boolean containsKey(double key);
/**
* Iterates through each key in the map, invoking the procedure for each.
* @param procedure the procedure to invoke for each key
*/
void forEachKey(DoubleProcedure procedure);
/**
* Iterates through each key/value pair in the map, invoking the procedure for each.
* @param procedure the procedure to invoke for each key/value pair
*/
void forEachKeyValue(DoubleCharProcedure procedure);
/**
* Returns a view of the keys in this map. This iterable is backed by the map, so
* any modifications to the underlying map will be reflected in the keys returned
* by the iterable.
* @return a view of the keys in this map
* @since 5.0
*/
LazyDoubleIterable keysView();
/**
* Returns a view of the key/value pairs in this map. This iterable is backed by
* the map, so any modifications to the underlying map will be reflected in the
* pairs returned by the iterable.
* @return a view of the keys in this map
* @since 5.0
*/
RichIterable keyValuesView();
/**
* Return the CharDoubleMap that is obtained by flipping the direction of this map and making the associations
* from value to key.
*
* @throws IllegalStateException if the CharDoubleMap contains duplicate values.
* @since 9.0
*/
CharDoubleMap flipUniqueValues();
/**
* Return a copy of this map containing only the key/value pairs that match the predicate.
* @param predicate the predicate to determine which key/value pairs in this map should be
* included in the returned map
* @return a copy of this map with the matching key/value pairs
*/
DoubleCharMap select(DoubleCharPredicate predicate);
/**
* Return a copy of this map containing only the key/value pairs that do not match the
* predicate.
* @param predicate the predicate to determine which key/value pairs in this map should be
* excluded from the returned map
* @return a copy of this map without the matching key/value pairs
*/
DoubleCharMap reject(DoubleCharPredicate predicate);
/**
* Follows the same general contract as {@link Map#equals(Object)}.
*/
@Override
boolean equals(Object o);
/**
* Follows the same general contract as {@link Map#hashCode()}.
*/
@Override
int hashCode();
/**
* Follows the same general contract as {@link java.util.AbstractMap#toString()}
*
* @return a string representation of this DoubleCharMap
*/
@Override
String toString();
/**
* Returns a copy of this map that is immutable (if this map is mutable) or
* itself if it is already immutable.
* @return an immutable map that is equivalent to this one
*/
ImmutableDoubleCharMap toImmutable();
/**
* Returns a set containing all the keys in this map. The set is backed by the
* map, so any modifications to the returned set will affect this map.
* @return a mutable set containing the keys in this map
*/
MutableDoubleSet keySet();
}