org.logicalcobwebs.proxool
Class ProxyStatement

java.lang.Object
  org.logicalcobwebs.proxool.AbstractProxyStatement
      org.logicalcobwebs.proxool.ProxyStatement

All Implemented Interfaces:

Callback, MethodInterceptor

 class ProxyStatement
extends AbstractProxyStatement
implements MethodInterceptor

Delegates to Statement for all calls. But also, for all execute methods, it checks the SQLException and compares it to the fatalSqlException list in the ConnectionPoolDefinition. If it detects a fatal exception it will destroy the Connection so that it isn't used again.

Version:

$Revision: 1.30 $, $Date: 2006/01/16 23:09:28 $

Author:

billhorsman, $Author: billhorsman $ (current maintainer)

Field Summary

private static java.lang.String	ADD_BATCH_METHOD
private static java.lang.String	CLOSE_METHOD
private static java.lang.String	EQUALS_METHOD
private static java.lang.String	EXECUTE_BATCH_METHOD
private static java.lang.String	EXECUTE_FRAGMENT
private static java.lang.String	FINALIZE_METHOD
private static Log	LOG
private static java.lang.String	SET_NULL_METHOD
private static java.lang.String	SET_PREFIX

Constructor Summary

ProxyStatement(java.sql.Statement statement, ConnectionPool connectionPool, ProxyConnectionIF proxyConnection, java.lang.String sqlStatement)

Method Summary

java.lang.Object	intercept(java.lang.Object obj, java.lang.reflect.Method method, java.lang.Object[] args, MethodProxy proxy) All generated proxied methods call this method instead of the original method.
java.lang.Object	invoke(java.lang.Object proxy, java.lang.reflect.Method method, java.lang.Object[] args)

Methods inherited from class org.logicalcobwebs.proxool.AbstractProxyStatement

appendToSqlLog, close, equals, getConnectionPool, getDateAsString, getDelegateStatement, getStatement, isTrace, putParameter, setSqlStatementIfNull, startExecute, testException, trace

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final Log LOG

EXECUTE_FRAGMENT

private static final java.lang.String EXECUTE_FRAGMENT

See Also:

Constant Field Values

EXECUTE_BATCH_METHOD

private static final java.lang.String EXECUTE_BATCH_METHOD

See Also:

Constant Field Values

ADD_BATCH_METHOD

private static final java.lang.String ADD_BATCH_METHOD

See Also:

Constant Field Values

EQUALS_METHOD

private static final java.lang.String EQUALS_METHOD

See Also:

Constant Field Values

CLOSE_METHOD

private static final java.lang.String CLOSE_METHOD

See Also:

Constant Field Values

FINALIZE_METHOD

private static final java.lang.String FINALIZE_METHOD

See Also:

Constant Field Values

SET_NULL_METHOD

private static final java.lang.String SET_NULL_METHOD

See Also:

Constant Field Values

SET_PREFIX

private static final java.lang.String SET_PREFIX

See Also:

Constant Field Values

Constructor Detail

ProxyStatement

public ProxyStatement(java.sql.Statement statement,
                      ConnectionPool connectionPool,
                      ProxyConnectionIF proxyConnection,
                      java.lang.String sqlStatement)

Method Detail

intercept

public java.lang.Object intercept(java.lang.Object obj,
                                  java.lang.reflect.Method method,
                                  java.lang.Object[] args,
                                  MethodProxy proxy)
                           throws java.lang.Throwable

Description copied from interface: MethodInterceptor

All generated proxied methods call this method instead of the original method. The original method may either be invoked by normal reflection using the Method object, or by using the MethodProxy (faster).

Specified by:

intercept in interface MethodInterceptor

Parameters:

obj - "this", the enhanced object

method - intercepted Method

args - argument array; primitive types are wrapped

proxy - used to invoke super (non-intercepted method); may be called as many times as needed

Returns:

any value compatible with the signature of the proxied method. Method returning void will ignore this value.

Throws:

java.lang.Throwable - any exception may be thrown; if so, super method will not be invoked

See Also:

MethodProxy

invoke

public java.lang.Object invoke(java.lang.Object proxy,
                               java.lang.reflect.Method method,
                               java.lang.Object[] args)
                        throws java.lang.Throwable

Throws:

java.lang.Throwable