org.postgresql

Class QueryCNListUtils

java.lang.Object

org.postgresql.QueryCNListUtils

public class QueryCNListUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
QueryCNListUtils()

Method Summary

Modifier and Type	Method and Description
static String	keyFromURL(Properties props) Generate a key representing the cluster based on PGHOSTURL and PGPORTURL in props.
static void	refreshProperties(Properties props) Submit the cluster information in props to the polling thread.
static void	runRereshCNListQueryies(QueryExecutor queryExecutor, Properties info) Refresh the global CN list using the established connections at the upper layer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

QueryCNListUtils

public QueryCNListUtils()

Method Detail

keyFromURL

public static String keyFromURL(Properties props)

Generate a key representing the cluster based on PGHOSTURL and PGPORTURL in props.

Parameters:

props - : Connection properties

Returns:

Key representing the cluster

refreshProperties

public static void refreshProperties(Properties props)

Submit the cluster information in props to the polling thread. and attempts to obtain the CN list of the cluster from the result output by the polling thread.

Parameters:

props - : Connection properties

runRereshCNListQueryies

public static void runRereshCNListQueryies(QueryExecutor queryExecutor,
                                           Properties info)
                                    throws SQLException,
                                           IOException

Refresh the global CN list using the established connections at the upper layer.

Parameters:

queryExecutor - : QueryExecutor that has been connected

info - : Connection properties

Throws:

SQLException

IOException