Package com.alibaba.druid.pool.vendor

Class MySqlValidConnectionChecker

java.lang.Object

com.alibaba.druid.pool.ValidConnectionCheckerAdapter

com.alibaba.druid.pool.vendor.MySqlValidConnectionChecker

All Implemented Interfaces:

ValidConnectionChecker, Serializable

public class MySqlValidConnectionChecker
extends ValidConnectionCheckerAdapter
implements ValidConnectionChecker, Serializable

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static String	DEFAULT_VALIDATION_QUERY
static int	DEFAULT_VALIDATION_QUERY_TIMEOUT

Constructor Summary

Constructors

Constructor	Description
MySqlValidConnectionChecker()

Method Summary

Modifier and Type	Method	Description
void	configFromProperties(Properties properties)
boolean	isUsePingMethod()
boolean	isValidConnection(Connection conn, String validateQuery, int validationQueryTimeout)
void	setUsePingMethod(boolean usePingMethod)

Methods inherited from class com.alibaba.druid.pool.ValidConnectionCheckerAdapter

execValidQuery

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_VALIDATION_QUERY_TIMEOUT

public static final int DEFAULT_VALIDATION_QUERY_TIMEOUT

See Also:

Constant Field Values

DEFAULT_VALIDATION_QUERY

public static final String DEFAULT_VALIDATION_QUERY

See Also:

Connection Pooling with Connector/J

specify a validation query in your connection pool that starts with /* ping */. Note that the syntax must be exactly as specified. This will cause the driver send a ping to the server and return a dummy lightweight result set. When using a ReplicationConnection or LoadBalancedConnection, the ping will be sent across all active connections., Constant Field Values

Constructor Detail

MySqlValidConnectionChecker

public MySqlValidConnectionChecker()

Method Detail

configFromProperties

public void configFromProperties(Properties properties)

Specified by:

configFromProperties in interface ValidConnectionChecker

Overrides:

configFromProperties in class ValidConnectionCheckerAdapter

Parameters:

properties - the properties to be used for configuration

isUsePingMethod

public boolean isUsePingMethod()

setUsePingMethod

public void setUsePingMethod(boolean usePingMethod)

isValidConnection

public boolean isValidConnection(Connection conn,
                                 String validateQuery,
                                 int validationQueryTimeout)
                          throws Exception

Specified by:

isValidConnection in interface ValidConnectionChecker

Overrides:

isValidConnection in class ValidConnectionCheckerAdapter

Throws:

Exception