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sql2java common class package
There is a newer version: 5.3.2
package gu.sql2java;

import java.util.concurrent.TimeUnit;

/**
 * constant declare
 * @author guyadong
 */
public interface Constant {    
    public static final int STATE_BIT_NUM = 32;
    public static final int STATE_BIT_SHIFT = 5;
    public static final int STATE_BIT_MASK = 0x1f;

    public static final String SQL_LIKE_WILDCARD = "%";
    /** set =QUERY for loadUsingTemplate */
    public static final int SEARCH_EXACT = 0;
    /** set %QUERY% for loadLikeTemplate */
    public static final int SEARCH_LIKE = 1;
    /** set %QUERY for loadLikeTemplate */
    public static final int SEARCH_STARTING_LIKE = 2;
    /** set QUERY% for loadLikeTemplate */
    public static final int SEARCH_ENDING_LIKE = 3;

    /** JDBC property name definition */
    public static enum JdbcProperty{
        /** debug status */DEBUG("isDebug"),
        /** JDBC driver class name */JDBC_DRIVER("jdbc.driver"),
        /** JDBC connection url */JDBC_URL("jdbc.url"),
        /** JDBC user name */JDBC_USERNAME("jdbc.username"),
        /** JDBC password */JDBC_PASSWORD("jdbc.password"),
        /** Retrieval type of auto generated key:auto,before,after */GENERATEDKEY_RETRIEVE("generatedkey.retrieve"),
        /** Retrieval statement of auto generated key */GENERATEDKEY_STATEMENT("generatedkey.statement"),
        /** data source type, c3p0 supported only now */DATASOURCE("datasource"),
        /** c3p0 property */C3P0_MINPOOLSIZE("c3p0.minPoolSize"),
        /** c3p0 property */C3P0_MAXPOOLSIZE("c3p0.maxPoolSize"),
        /** c3p0 property */C3P0_MAXIDLETIME("c3p0.maxIdleTime"),
        /** c3p0 property */C3P0_IDLECONNECTIONTESTPERIOD("c3p0.idleConnectionTestPeriod");
        /** JDBC property name */
        public final String key;
        
        JdbcProperty(String key){
            this.key = key;
        }
        /** return {@link #key} with {@code prefix} */
        public String withPrefix(String prefix){
            return new StringBuffer().append(prefix).append(key).toString();
        }
        /** 
         * cast {@code key} to {@link JdbcProperty} instance if {@link #key} field equal the argument {@code key},
         * otherwise return {@code null} 
         * @param key JDBC property name
         */
        public static final JdbcProperty fromKey(String key){
            for(JdbcProperty p: values()){
                if(p.key.equals(key)){
                    return p;
                }
            }
            return null;
        }

    }

	/** 
	 * Update strategy for cache
	 */
	enum UpdateStrategy{        
	    /** update no matter whether key exists */
	    always,
	    /** update only if key exists */
	    replace,
	    /** remove key  */
	    remove,
	    /** reload data form database if key exists,and update  */
	    refresh
	}
	/** 默认缓存更新策略 */
	UpdateStrategy DEFAULT_STRATEGY = UpdateStrategy.always;
	/** 默认缓存最大缓存容量 */
	long DEFAULT_CACHE_MAXIMUMSIZE = 10000;
	/** 默认缓存失败时间 */
	long DEFAULT_DURATION = 10;
	/** 默认缓存失败时间单位 */
	TimeUnit DEFAULT_TIME_UNIT = TimeUnit.MINUTES;
	public static final String RETRIEVE_SUFFIX = "generatedkey.retrieve";
	public static final String STATEMENT_SUFFIX = "generatedkey.statement";
}