Package com.blazebit.persistence.integration.hibernate.base

Class SubselectPreparedStatementProxyHandler

java.lang.Object

com.blazebit.persistence.integration.hibernate.base.SubselectPreparedStatementProxyHandler

All Implemented Interfaces:

java.lang.reflect.InvocationHandler

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

Hibernate always binds positioned parameters before named parameters, which is problematic for any CTE prepended to the query, for which its parameters will be bound out of order. This InvocationHandler ensures that the indexes used for parameter bindings are adjusted accordingly, effectively swapping the positional query parameters with the named query parameters in the CTE query segment.

Since:

1.2.1

Author:

Jan-Willem Gmelig Meyling

Constructor Summary

Constructors

Constructor	Description
SubselectPreparedStatementProxyHandler(java.sql.PreparedStatement delegate, org.hibernate.engine.spi.QueryParameters queryParameters, int cteParameterCount)

Method Summary

Modifier and Type	Method	Description
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

Constructor Detail

SubselectPreparedStatementProxyHandler

public SubselectPreparedStatementProxyHandler(java.sql.PreparedStatement delegate,
                                              org.hibernate.engine.spi.QueryParameters queryParameters,
                                              int cteParameterCount)

Method Detail

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