org.hibernate.engine.jdbc

Class ResultSetWrapperProxy

java.lang.Object

org.hibernate.engine.jdbc.ResultSetWrapperProxy

All Implemented Interfaces:

java.lang.reflect.InvocationHandler

public class ResultSetWrapperProxy
extends java.lang.Object
implements java.lang.reflect.InvocationHandler

A proxy for a ResultSet delegate, responsible for locally caching the columnName-to-columnIndex resolution that has been found to be inefficient in a few vendor's drivers (i.e., Oracle and Postgres).

Author:

Steve Ebersole, Gail Badner

Method Summary

Methods

Modifier and Type	Method and Description
static java.sql.ResultSet	generateProxy(java.sql.ResultSet resultSet, ColumnNameCache columnNameCache) Generates a proxy wrapping the ResultSet.
static java.lang.ClassLoader	getProxyClassLoader() Determines the appropriate class loader to which the generated proxy should be scoped.
java.lang.Object	invoke(java.lang.Object proxy, java.lang.reflect.Method method, java.lang.Object[] args)

Methods inherited from class java.lang.Object

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

Method Detail

generateProxy

public static java.sql.ResultSet generateProxy(java.sql.ResultSet resultSet,
                               ColumnNameCache columnNameCache)

Generates a proxy wrapping the ResultSet.

Parameters:

resultSet - The resultSet to wrap.

columnNameCache - The cache storing data for converting column names to column indexes.

Returns:

The generated proxy.

getProxyClassLoader

public static java.lang.ClassLoader getProxyClassLoader()

Determines the appropriate class loader to which the generated proxy should be scoped.

Returns:

The class loader appropriate for proxy construction.

invoke

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

Specified by:

invoke in interface java.lang.reflect.InvocationHandler

Throws:

java.lang.Throwable