Glassfish example source code file (ReadOnlyBeanInfo.java)

This example Glassfish source code file (ReadOnlyBeanInfo.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Glassfish tags/keywords

bean, bean, cached, date, date, info, last, last, object, object, only, readonlybeaninfo, refresh, stringbuffer, util

The Glassfish ReadOnlyBeanInfo.java source code

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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
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package com.sun.ejb.containers;

import java.util.Date;

/**
 * Per-primary key information stored for read-only beans.
 *
 * @author Kenneth Saks
 */

final class ReadOnlyBeanInfo
{

    Object primaryKey;

    // Used to track staleness versus the bean-level refresh.
    int beanLevelSequenceNum;

    // Set to true when a programmatic refresh takes place.  
    boolean refreshNeeded;
    
    // Sequence number associated with a point in time when refresh occurred.
    // Each context for this pk also has a sequence number value.  If they
    // differ it means the context needs an ejbLoad.
    int pkLevelSequenceNum;

    // last time when refresh was programattically requested for this PK.
    long lastRefreshRequestedAt;
    
    // time at which refresh actually occurred.
    long lastRefreshedAt;
    
    Object	cachedEjbLocalObject;	    //Cached only for findByPK

    Object	cachedEjbObject;	    //Cached only for findByPK

    public String toString() {
        
        StringBuffer buffer = new StringBuffer();
        buffer.append("Read Only Bean Info for " + primaryKey + "\n");
        buffer.append("Refresh needed = " + refreshNeeded + "\n");
        buffer.append("Bean level sequence num = " + beanLevelSequenceNum 
                      + "\n");
        buffer.append("PK level sequence num = " + pkLevelSequenceNum + "\n");
        if( lastRefreshRequestedAt > 0 ) {
            buffer.append("Last refresh requested at " + 
                          new Date(lastRefreshRequestedAt) 
                          + "\n");
        } else {
            buffer.append("Refresh has never been requested\n");
        }
        if( lastRefreshedAt > 0 ) {
            buffer.append("Last refreshed at " + 
                          new Date(lastRefreshedAt) + "\n");
        } else {
            buffer.append("Never refreshed\n");
        }
        
        return buffer.toString();
    }
    
}