modules/core/src/main/java/org/apache/ignite/internal/processors/cache/tree/PendingRow.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.ignite.internal.processors.cache.tree;

import org.apache.ignite.IgniteCheckedException;
import org.apache.ignite.internal.processors.cache.CacheGroupContext;
import org.apache.ignite.internal.processors.cache.KeyCacheObject;
import org.apache.ignite.internal.processors.cache.persistence.CacheDataRowAdapter;
import org.apache.ignite.internal.processors.cache.tree.mvcc.data.MvccDataRow;
import org.apache.ignite.internal.util.typedef.internal.S;

/**
 *
 */
public class PendingRow {
    /** Expire time. */
    public long expireTime;

    /** Link. */
    public long link;

    /** Cache ID. */
    public int cacheId;

    /** */
    public KeyCacheObject key;

    /**
     * Creates a new instance which represents an upper or lower bound
     * inside a logical cache.
     *
     * @param cacheId Cache ID.
     */
    public PendingRow(int cacheId) {
        this.cacheId = cacheId;
    }

    /**
     * @param cacheId Cache ID.
     * @param expireTime Expire time.
     * @param link Link
     */
    public PendingRow(int cacheId, long expireTime, long link) {
        assert expireTime != 0;

        this.cacheId = cacheId;
        this.expireTime = expireTime;
        this.link = link;
    }

    /**
     * @param grp Cache group.
     * @return Row.
     * @throws IgniteCheckedException If failed.
     */
    PendingRow initKey(CacheGroupContext grp) throws IgniteCheckedException {
        CacheDataRowAdapter rowData = grp.mvccEnabled() ? new MvccDataRow(link) : new CacheDataRowAdapter(link);
        rowData.initFromLink(grp, CacheDataRowAdapter.RowData.KEY_ONLY);

        key = rowData.key();

        return this;
    }

    /** {@inheritDoc} */
    @Override public String toString() {
        return S.toString(PendingRow.class, this);
    }
}