StoredSortedKeySet.java

/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 2000-2005
 *      Sleepycat Software.  All rights reserved.
 *
 * $Id: StoredSortedKeySet.java,v 12.2 2005/10/05 20:40:10 mark Exp $
 */

package com.sleepycat.collections;

import java.util.Comparator;
import java.util.SortedSet;

import com.sleepycat.bind.EntryBinding;
import com.sleepycat.db.Database;

public class StoredSortedKeySet extends StoredKeySet implements SortedSet {

    public StoredSortedKeySet(Database database, EntryBinding keyBinding,
                              boolean writeAllowed) {

        super(new DataView(database, keyBinding, null, null,
                           writeAllowed, null));
    }

    StoredSortedKeySet(DataView keySetView) {

        super(keySetView);
    }

    public Comparator comparator() {

        return null;
    }

    public Object first() {

        return getFirstOrLast(true);
    }

    public Object last() {

        return getFirstOrLast(false);
    }

    public SortedSet headSet(Object toKey) {

        return subSet(null, false, toKey, false);
    }

    public SortedSet headSet(Object toKey, boolean toInclusive) {

        return subSet(null, false, toKey, toInclusive);
    }

    public SortedSet tailSet(Object fromKey) {

        return subSet(fromKey, true, null, false);
    }

    public SortedSet tailSet(Object fromKey, boolean fromInclusive) {

        return subSet(fromKey, fromInclusive, null, false);
    }

    public SortedSet subSet(Object fromKey, Object toKey) {

        return subSet(fromKey, true, toKey, false);
    }

    public SortedSet subSet(Object fromKey, boolean fromInclusive,
                            Object toKey, boolean toInclusive) {

        try {
            return new StoredSortedKeySet(
               view.subView(fromKey, fromInclusive, toKey, toInclusive, null));
        } catch (Exception e) {
            throw StoredContainer.convertException(e);
        }
    }
}

---