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JSON Pointer (RFC 6901) and numeric equality for Jackson (2.2.x)

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/*
 * Copyright (c) 2014, Francis Galiegue ([email protected])
 *
 * This software is dual-licensed under:
 *
 * - the Lesser General Public License (LGPL) version 3.0 or, at your option, any
 *   later version;
 * - the Apache Software License (ASL) version 2.0.
 *
 * The text of this file and of both licenses is available at the root of this
 * project or, if you have the jar distribution, in directory META-INF/, under
 * the names LGPL-3.0.txt and ASL-2.0.txt respectively.
 *
 * Direct link to the sources:
 *
 * - LGPL 3.0: https://www.gnu.org/licenses/lgpl-3.0.txt
 * - ASL 2.0: http://www.apache.org/licenses/LICENSE-2.0.txt
 */
package com.github.fge.jackson;

import com.fasterxml.jackson.databind.JsonNode;
import com.google.common.base.Equivalence;

/**
 * An {@link Equivalence} strategy for JSON Schema equality
 */
public final class JsonNumEquivalence
    extends Equivalence
{
    private static final Equivalence INSTANCE
        = new JsonNumEquivalence();

    public static Equivalence getInstance() {
        return INSTANCE;
    } 

    @Override
    protected boolean doEquivalent(final JsonNode a, final JsonNode b) {
        return JsonNumEquals.getInstance().equivalent(a, b);
    }

    @Override
    protected int doHash(final JsonNode t) {
        return JsonNumEquals.getInstance().hash(t);
    }
}