Function Java_sz_1orm_1java_SzOrmPool_modelUpdateTx 

#[unsafe(no_mangle)]
pub extern "system" fn Java_sz_1orm_1java_SzOrmPool_modelUpdateTx<'local>(
    unowned_env: EnvUnowned<'local>,
    _class: JClass<'local>,
    tx_handle: jlong,
    table: JString<'local>,
    set_json: JString<'local>,
    where_clause: JString<'local>,
    where_params_json: JString<'local>,
) -> jlong

JNI entry: Update row in transaction, return affected row count (-1 indicates failure)