ConnectionTester

All Superinterfaces:

java.io.Serializable

All Known Subinterfaces:

FullQueryConnectionTester, QueryConnectionTester, UnifiedConnectionTester

All Known Implementing Classes:

AbstractConnectionTester, DefaultConnectionTester, IsValidOnlyConnectionTester, IsValidOnlyConnectionTester30
```
public interface ConnectionTester
extends java.io.Serializable
```
Define your own Connection tester if you want to override c3p0's default behavior for testing the validity of Connections and responding to Connection errors encountered.

Recommended: If you'd like your ConnectionTester to support the user-configured preferredTestQuery parameter, please implement UnifiedConnectionTester.
ConnectionTesters should be Serializable, immutable, and must have public, no-arg constructors.

See Also:

UnifiedConnectionTester, AbstractConnectionTester

Field Summary

Fields
Modifier and Type Field Description

static int CONNECTION_IS_INVALID

static int CONNECTION_IS_OKAY

static int DATABASE_IS_INVALID

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`activeCheckConnection(java.sql.Connection c)`
`int`	`statusOnException(java.sql.Connection c, java.lang.Throwable t)`

Field Detail
- CONNECTION_IS_OKAY
```
static final int CONNECTION_IS_OKAY
```
  See Also:
  
  Constant Field Values
- CONNECTION_IS_INVALID
```
static final int CONNECTION_IS_INVALID
```
  See Also:
  
  Constant Field Values
- DATABASE_IS_INVALID
```
static final int DATABASE_IS_INVALID
```
  See Also:
  
  Constant Field Values

Method Detail

activeCheckConnection

int activeCheckConnection(java.sql.Connection c)

statusOnException

int statusOnException(java.sql.Connection c,
                      java.lang.Throwable t)