2 * Copyright (c) 2015 Pantheon Technologies s.r.o. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.yangtools.yang.model.api.stmt;
10 import static com.google.common.base.Preconditions.checkArgument;
12 import com.google.common.annotations.Beta;
13 import com.google.common.collect.Range;
14 import java.util.List;
15 import org.opendaylight.yangtools.concepts.Immutable;
16 import org.opendaylight.yangtools.yang.model.api.type.RangeConstraint;
19 public abstract class UnresolvedNumber extends Number implements Immutable {
20 private static final long serialVersionUID = 1L;
21 private static final UnresolvedNumber MAX = new UnresolvedNumber() {
22 private static final long serialVersionUID = 1L;
25 public <T extends Number & Comparable<T>> T resolveLength(final Range<T> span) {
26 return resolve(span.upperEndpoint());
30 public Number resolveRange(final List<RangeConstraint> constraints) {
31 return resolve(constraints.get(constraints.size() - 1).getMax());
35 public String toString() {
39 private Object readResolve() {
44 private static final UnresolvedNumber MIN = new UnresolvedNumber() {
45 private static final long serialVersionUID = 1L;
48 public <T extends Number & Comparable<T>> T resolveLength(final Range<T> span) {
49 return resolve(span.lowerEndpoint());
53 public Number resolveRange(final List<RangeConstraint> constraints) {
54 return resolve(constraints.get(0).getMin());
58 public String toString() {
62 private Object readResolve() {
67 public static UnresolvedNumber min() {
71 public static UnresolvedNumber max() {
76 public final int intValue() {
77 throw new UnsupportedOperationException();
81 public final long longValue() {
82 throw new UnsupportedOperationException();
86 public final float floatValue() {
87 throw new UnsupportedOperationException();
91 public final double doubleValue() {
92 throw new UnsupportedOperationException();
95 private static <T extends Number> T resolve(final T number) {
96 checkArgument(!(number instanceof UnresolvedNumber));
100 public abstract <T extends Number & Comparable<T>> T resolveLength(Range<T> span);
102 public abstract Number resolveRange(List<RangeConstraint> constraints);
105 public abstract String toString();