/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.test.type.descriptor.sql;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.sql.Clob;
import java.sql.ResultSet;
/**
* TODO : javadoc
*
* @author Steve Ebersole
*/
public class ResultSetProxy<T> implements InvocationHandler {
public static ResultSet generateProxy(ResultSetProxy handler) {
return ( ResultSet ) Proxy.newProxyInstance(
getProxyClassLoader(),
new Class[] { ResultSet.class },
handler
);
}
private static ClassLoader getProxyClassLoader() {
ClassLoader cl = Thread.currentThread().getContextClassLoader();
if ( cl == null ) {
cl = ResultSet.class.getClassLoader();
}
return cl;
}
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
if ( method.getName().equals( methodName ) && args.length >= 1 ) {
return value;
}
if ( method.getName().equals( "wasNull" ) ) {
return value == null;
}
throw new UnsupportedOperationException( "Unexpected call ResultSet." + method.getName() );
}
private final String methodName;
private final T value;
protected ResultSetProxy(String methodName, T value) {
this.methodName = methodName;
this.value = value;
}
public static ResultSet generateProxy(final String value) {
return generateProxy(
new ResultSetProxy<String>( "getString", value )
);
}
public static ResultSet generateProxy(final Clob value) {
return generateProxy(
new ResultSetProxy<Clob>( "getClob", value )
);
}
}