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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 operations; 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. This jar (fastutil-core.jar) contains data structures based on integers, longs, doubles, and objects, only; fastutil.jar contains all classes. If you have both jars in your dependencies, this jar should be excluded.
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/*
* Copyright (C) 2020-2024 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 PACKAGE;
/** A type-specific {@link it.unimi.dsi.fastutil.Pair Pair}; provides some additional methods that use polymorphism to avoid (un)boxing. */
public interface PAIR KEY_VALUE_GENERIC extends it.unimi.dsi.fastutil.Pair {
#if KEYS_PRIMITIVE
/**
* Returns the left element of this pair.
*
* @return the left element of this pair.
*/
public KEY_TYPE PAIR_LEFT();
/** {@inheritDoc}
* @deprecated Please use the corresponding type-specific method instead.
*/
@Deprecated
@Override
public default KEY_CLASS left() {
return KEY2OBJ(PAIR_LEFT());
}
/**
* Sets the left element of this pair (optional operation).
*
* @param l a new value for the left element.
*
* @implSpec This implementation throws an {@link UnsupportedOperationException}.
*/
public default PAIR KEY_VALUE_GENERIC left(final KEY_TYPE l) {
throw new UnsupportedOperationException();
}
/** {@inheritDoc}
* @deprecated Please use the corresponding type-specific method instead.
*/
@Deprecated
@Override
public default PAIR KEY_VALUE_GENERIC left(final KEY_CLASS l) {
return left(KEY_CLASS2TYPE(l));
}
/**
* Returns the left element of this pair.
*
* @return the left element of this pair.
*
* @implSpec This implementation delegates to {@link #left()}.
*
*/
public default KEY_TYPE PAIR_FIRST() {
return PAIR_LEFT();
}
/** {@inheritDoc}
* @deprecated Please use the corresponding type-specific method instead.
*/
@Deprecated
@Override
public default KEY_CLASS first() {
return KEY2OBJ(PAIR_FIRST());
}
/**
* Sets the left element of this pair (optional operation).
*
* @param l a new value for the left element.
*
* @implSpec This implementation delegates to {@link #left(Object)}.
*/
public default PAIR KEY_VALUE_GENERIC first(final KEY_TYPE l) {
return left(l);
}
/** {@inheritDoc}
* @deprecated Please use the corresponding type-specific method instead.
*/
@Deprecated
@Override
public default PAIR KEY_VALUE_GENERIC first(final KEY_CLASS l) {
return first(KEY_CLASS2TYPE(l));
}
/**
* Returns the left element of this pair.
*
* @return the left element of this pair.
*
* @implSpec This implementation delegates to {@link #left()}.
*
*/
public default KEY_TYPE PAIR_KEY() {
return PAIR_FIRST();
}
/** {@inheritDoc}
* @deprecated Please use the corresponding type-specific method instead.
*/
@Deprecated
@Override
public default KEY_CLASS key() {
return KEY2OBJ(PAIR_KEY());
}
/**
* Sets the left element of this pair (optional operation).
*
* @param l a new value for the left element.
*
* @implSpec This implementation delegates to {@link #left(Object)}.
*/
public default PAIR KEY_VALUE_GENERIC key(final KEY_TYPE l) {
return left(l);
}
@Override
@Deprecated
public default PAIR KEY_VALUE_GENERIC key(KEY_CLASS l) {
return key(KEY_CLASS2TYPE(l));
}
#endif
#if VALUES_PRIMITIVE
/**
* Returns the right element of this pair.
*
* @return the right element of this pair.
*/
public VALUE_TYPE PAIR_RIGHT();
/** {@inheritDoc}
* @deprecated Please use the corresponding type-specific method instead.
*/
@Deprecated
@Override
public default VALUE_CLASS right() {
return VALUE2OBJ(PAIR_RIGHT());
}
/**
* Sets the right element of this pair (optional operation).
*
* @param r a new value for the right element.
*
* @implSpec This implementation throws an {@link UnsupportedOperationException}.
*/
public default PAIR KEY_VALUE_GENERIC right(final VALUE_TYPE r) {
throw new UnsupportedOperationException();
}
/** {@inheritDoc}
* @deprecated Please use the corresponding type-specific method instead.
*/
@Deprecated
@Override
public default PAIR KEY_VALUE_GENERIC right(final VALUE_CLASS l) {
return right(VALUE_CLASS2TYPE(l));
}
/**
* Returns the right element of this pair.
*
* @return the right element of this pair.
*
* @implSpec This implementation delegates to {@link #right()}.
*
*/
public default VALUE_TYPE PAIR_SECOND() {
return PAIR_RIGHT();
}
/** {@inheritDoc}
* @deprecated Please use the corresponding type-specific method instead.
*/
@Deprecated
@Override
public default VALUE_CLASS second() {
return VALUE2OBJ(PAIR_SECOND());
}
/**
* Sets the right element of this pair (optional operation).
*
* @param r a new value for the right element.
*
* @implSpec This implementation delegates to {@link #right(Object)}.
*/
public default PAIR KEY_VALUE_GENERIC second(final VALUE_TYPE r) {
return right(r);
}
/** {@inheritDoc}
* @deprecated Please use the corresponding type-specific method instead.
*/
@Deprecated
@Override
public default PAIR KEY_VALUE_GENERIC second(final VALUE_CLASS l) {
return second(VALUE_CLASS2TYPE(l));
}
/**
* Returns the right element of this pair.
*
* @return the right element of this pair.
*
* @implSpec This implementation delegates to {@link #right()}.
*
*/
public default VALUE_TYPE PAIR_VALUE() {
return PAIR_RIGHT();
}
/** {@inheritDoc}
* @deprecated Please use the corresponding type-specific method instead.
*/
@Deprecated
@Override
public default VALUE_CLASS value() {
return VALUE2OBJ(PAIR_VALUE());
}
/**
* Sets the right element of this pair (optional operation).
*
* @param r a new value for the right element.
*
* @implSpec This implementation delegates to {@link #right(Object)}.
*/
public default PAIR KEY_VALUE_GENERIC value(final VALUE_TYPE r) {
return right(r);
}
/** {@inheritDoc}
* @deprecated Please use the corresponding type-specific method instead.
*/
@Deprecated
@Override
public default PAIR KEY_VALUE_GENERIC value(final VALUE_CLASS l) {
return value(VALUE_CLASS2TYPE(l));
}
#endif
/** Returns a new type-specific immutable {@link it.unimi.dsi.fastutil.Pair Pair} with given left and right value.
* @param left the left value.
* @param right the right value.
*/
public static KEY_VALUE_GENERIC PAIR KEY_VALUE_GENERIC of(final KEY_GENERIC_TYPE left, final VALUE_GENERIC_TYPE right) {
return new IMMUTABLE_PAIR KEY_VALUE_GENERIC(left, right);
}
#if ! KEYS_USE_REFERENCE_EQUALITY && ! VALUES_USE_REFERENCE_EQUALITY
/**
* Returns a lexicographical comparator for pairs.
*
*
* The comparator returned by this method implements lexicographical order. It compares first
* the left elements: if the result of the comparison is nonzero, it returns said result.
* Otherwise, this comparator returns the result of the comparison of the right elements.
*
* @return a lexicographical comparator for pairs.
*/
SUPPRESS_WARNINGS_KEY_VALUE_UNCHECKED
public static KEY_VALUE_GENERIC java.util.Comparator lexComparator() {
return (x, y) -> {
#if KEYS_PRIMITIVE
final int t = KEY_CLASS.compare(x.PAIR_LEFT(), y.PAIR_LEFT());
#else
final int t = ((Comparable KEY_GENERIC)x.PAIR_LEFT()).compareTo(y.PAIR_LEFT());
#endif
if (t != 0) return t;
#if VALUES_PRIMITIVE
return VALUE_CLASS.compare(x.PAIR_RIGHT(), y.PAIR_RIGHT());
#else
return ((Comparable VALUE_GENERIC)x.PAIR_RIGHT()).compareTo(y.PAIR_RIGHT());
#endif
};
}
#endif
}