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/*
 * ConcurrencyDBNative.java
 *
 * Created on March 3, 2000
 *
 */

package com.sun.jdo.spi.persistence.support.sqlstore.sql.concurrency;

import com.sun.jdo.spi.persistence.support.sqlstore.LogHelperSQLStore;
import com.sun.jdo.spi.persistence.support.sqlstore.SQLStateManager;
import com.sun.jdo.spi.persistence.support.sqlstore.Transaction;
import com.sun.jdo.spi.persistence.support.sqlstore.UpdateObjectDesc;
import com.sun.jdo.spi.persistence.support.sqlstore.model.ClassDesc;
import com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.SelectQueryPlan;
import com.sun.jdo.spi.persistence.support.sqlstore.sql.generator.UpdateQueryPlan;
import com.sun.jdo.spi.persistence.utility.logging.Logger;

/**
 */
public class ConcurrencyDBNative implements Concurrency {

    SQLStateManager beforeImage;

    SQLStateManager afterImage;

    /** The logger */
    protected static final Logger logger = LogHelperSQLStore.getLogger();

    public void commit(UpdateObjectDesc updateDesc,
                       SQLStateManager beforeImage,
                       SQLStateManager afterImage,
                       int logReason) {
    }

    public void configPersistence(ClassDesc config) {
        // RESOLVE:  Need to check field properties so that we get the before
        // images at update time.
    }

    public Transaction suspend() {
        return null;
    }

    public void resume(Transaction t) {
    }

    public void select(SelectQueryPlan plan) {
    }

    public void update(UpdateQueryPlan plan) {
    }

    public Object clone() {
        return this;
    }
}




