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package com.sun.ejb.containers;

import javax.ejb.EnterpriseBean;

/**
 * Implementation of EJBContext for ReadOnlyBeans. Contains extra
 * attributes that allows selective ejbLoad()
 *
 * @author Mahesh Kannan
 */

public final class ReadOnlyContextImpl
    extends EntityContextImpl
{
    private int pkLevelSequenceNum;
    private long lastRefreshedAt;   
    private boolean removed = false;

    // only non-null when associated with a primary-key
    private ReadOnlyBeanInfo robInfo;
    
    ReadOnlyContextImpl(EnterpriseBean ejb, BaseContainer container) {
        super(ejb, container);
    }

    public int getPKLevelSequenceNum() {
        return pkLevelSequenceNum;
    }

    public void incrementPKLevelSequenceNum() {
        pkLevelSequenceNum++;
    }

    public void setPKLevelSequenceNum(int num) {
        pkLevelSequenceNum = num;
    }

    public long getLastRefreshedAt() {
        return lastRefreshedAt;
    }
    
    public void setLastRefreshedAt(long time) {
        lastRefreshedAt = time;
    }
    
    public boolean isRemoved() {
        return removed;
    }
    
    public void setRemoved(boolean value) {
        removed = value;
    }
    
    public void setReadOnlyBeanInfo(ReadOnlyBeanInfo info) {
        robInfo = info;

        // Whenever read-only bean info is set or nulled out, initialize
        // its derived fields.
        pkLevelSequenceNum = -1;
        lastRefreshedAt = 0;
    }

    public ReadOnlyBeanInfo getReadOnlyBeanInfo() {
        return robInfo;
    }
}