/**
 * END USER LICENSE AGREEMENT (“EULA”)
 *
 * READ THIS AGREEMENT CAREFULLY (date: 9/13/2011):
 * http://www.akiban.com/licensing/20110913
 *
 * BY INSTALLING OR USING ALL OR ANY PORTION OF THE SOFTWARE, YOU ARE ACCEPTING
 * ALL OF THE TERMS AND CONDITIONS OF THIS AGREEMENT. YOU AGREE THAT THIS
 * AGREEMENT IS ENFORCEABLE LIKE ANY WRITTEN AGREEMENT SIGNED BY YOU.
 *
 * IF YOU HAVE PAID A LICENSE FEE FOR USE OF THE SOFTWARE AND DO NOT AGREE TO
 * THESE TERMS, YOU MAY RETURN THE SOFTWARE FOR A FULL REFUND PROVIDED YOU (A) DO
 * NOT USE THE SOFTWARE AND (B) RETURN THE SOFTWARE WITHIN THIRTY (30) DAYS OF
 * YOUR INITIAL PURCHASE.
 *
 * IF YOU WISH TO USE THE SOFTWARE AS AN EMPLOYEE, CONTRACTOR, OR AGENT OF A
 * CORPORATION, PARTNERSHIP OR SIMILAR ENTITY, THEN YOU MUST BE AUTHORIZED TO SIGN
 * FOR AND BIND THE ENTITY IN ORDER TO ACCEPT THE TERMS OF THIS AGREEMENT. THE
 * LICENSES GRANTED UNDER THIS AGREEMENT ARE EXPRESSLY CONDITIONED UPON ACCEPTANCE
 * BY SUCH AUTHORIZED PERSONNEL.
 *
 * IF YOU HAVE ENTERED INTO A SEPARATE WRITTEN LICENSE AGREEMENT WITH AKIBAN FOR
 * USE OF THE SOFTWARE, THE TERMS AND CONDITIONS OF SUCH OTHER AGREEMENT SHALL
 * PREVAIL OVER ANY CONFLICTING TERMS OR CONDITIONS IN THIS AGREEMENT.
 */

package com.akiban.qp.util;

// Caches HKeys. The caching isn't to cache the values -- operators take care of that. The purpose of this
// class is to maximize reuse of HKey objects.

import com.akiban.ais.model.UserTable;
import com.akiban.qp.operator.StoreAdapter;
import com.akiban.qp.row.HKey;
import com.akiban.util.SparseArray;

public class HKeyCache<HKEY extends HKey>
{
    public HKEY hKey(UserTable table)
    {
        HKEY hKey;
        int ordinal = table.rowDef().getOrdinal();
        if (ordinalToHKey.isDefined(ordinal)) {
            hKey = ordinalToHKey.get(ordinal);
        } else {
            hKey = adapter.newHKey(table.hKey());
            ordinalToHKey.set(ordinal, hKey);
        }
        return hKey;
    }

    public HKeyCache(StoreAdapter adapter)
    {
        this.adapter = adapter;
    }

    private final StoreAdapter adapter;
    private final SparseArray<HKEY> ordinalToHKey = new SparseArray<HKEY>();
}

@@ -1850,16 +1850,23 @@
   hKey =
+ (HKEY)
  adapter

Add typecast to make an old compiler happy.