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Neo4j kernel is a lightweight, embedded Java database designed to store data structured as graphs rather than tables. For more information, see http://neo4j.org.

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/*
 * Copyright (c) 2002-2015 "Neo Technology,"
 * Network Engine for Objects in Lund AB [http://neotechnology.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */
package org.neo4j.kernel.api.properties;

import static org.neo4j.kernel.impl.cache.SizeOfs.withObjectOverhead;

/**
 * This does not extend AbstractProperty since the JVM can take advantage of the 4 byte initial field alignment if
 * we don't extend a class that has fields.
 */
final class BooleanProperty extends DefinedProperty
{
    private final boolean value;

    BooleanProperty( int propertyKeyId, boolean value )
    {
        super( propertyKeyId );
        this.value = value;
    }

    @Override
    @SuppressWarnings("UnnecessaryUnboxing")
    public boolean valueEquals( Object other )
    {
        return other instanceof Boolean && value == ((Boolean) other).booleanValue();
    }

    @Override
    public Boolean value()
    {
        return value;
    }

    @Override
    int valueHash()
    {
        return value ? -1 : 0;
    }

    @Override
    boolean hasEqualValue( DefinedProperty that )
    {
        return that instanceof BooleanProperty && value == ((BooleanProperty) that).value;
    }

    @Override
    public int sizeOfObjectInBytesIncludingOverhead()
    {
        return withObjectOverhead( 8 );
    }
}