Package com.foundationdb.qp.storeadapter.indexrow

Source Code of com.foundationdb.qp.storeadapter.indexrow.PersistitGroupIndexRow

/**
* Copyright (C) 2009-2013 FoundationDB, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package com.foundationdb.qp.storeadapter.indexrow;

import com.foundationdb.ais.model.GroupIndex;
import com.foundationdb.ais.model.IndexToHKey;
import com.foundationdb.ais.model.Table;
import com.foundationdb.qp.operator.StoreAdapter;
import com.foundationdb.qp.row.HKey;
import com.foundationdb.qp.rowtype.IndexRowType;
import com.persistit.Key;
import com.persistit.Value;

public class PersistitGroupIndexRow extends PersistitIndexRow
{
    // Row interface

    @Override
    public HKey ancestorHKey(Table table)
    {
        HKey ancestorHKey = hKeyCache.hKey(table);
        Key hKey = keyCreator.createKey();
        constructHKeyFromIndexKey(hKey, index.indexToHKey(table.getDepth()));
        ancestorHKey.copyFrom(hKey);
        return ancestorHKey;
    }

    // PersistitIndexRow interface

    @Override
    public IndexToHKey indexToHKey()
    {
        return index.indexToHKey(index.leafMostTable().getDepth());
    }

    @Override
    public long tableBitmap()
    {
        return tableBitmap;
    }

    @Override
    public void copyFrom(Key key, Value value)
    {
        super.copyFrom(key, value);
        tableBitmap = value.getLong();
    }

    // PersistitGroupIndexRow interface

    public PersistitGroupIndexRow(StoreAdapter adapter, IndexRowType indexRowType)
    {
        super(adapter, indexRowType);
        this.index = (GroupIndex) indexRowType.index();
    }

    // Object state

    private final GroupIndex index;
    private long tableBitmap;
}
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