/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.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 <http://www.gnu.org/licenses/>.
 */
package org.neo4j.kernel.impl.transaction.log;

import org.neo4j.cursor.IOCursor;

/**
 * {@link IOCursor} abstraction over a given array
 */
public class ArrayIOCursor<T> implements IOCursor<T> {
    private final T[] entries;
    private int pos;
    private boolean closed;

    public ArrayIOCursor(T... entries) {
        this.entries = entries;
    }

    @Override
    public T get() {
        assert !closed;
        return entries[pos - 1];
    }

    @Override
    public boolean next() {
        assert !closed;
        return pos++ < entries.length;
    }

    @Override
    public void close() {
        closed = true;
    }
}
