朋友 - 緣

呢幾日諗緊一個難題，話說有個朋友，中學識嘅。我無同佢同過班，剩係同佢一齊讀過一個星期先有兩堂嘅 Computer Studies, 但係就偏偏係依家最老死嘅朋友。



我今日都問過佢，但係佢都解唔到究竟我哋點樣熟絡。我諗唯一解釋到嘅，就係緣。緣呢樣嘢好奇妙，只要時辰一到，擋都擋唔住。無嘅話，真係住响隔籬，甚至做埋同房，都唔會識到。



我呢，人緣就幾好喇，但姻緣就嘛嘛。

Self-disposing Resource Pattern

A few mon, I have encountered a quite disturbing problem (see below). Until recently, I found that this problem can be solved by a interesting class, SoftReference, in Java. So, I formulated the following pattern. It's still a rough draft, but I would like to publish it first.

Name: Self-disposing Resource Pattern (Java)
Context: A is some expensive resource that may or may not be pooled. A is used to create another kind of resource, B. If A is disposed, it cannot create B anymore. However, if A is not disposed, the system may run out of memory.
Problem: Determine when to dispose A.
Solution: Java comes with SoftReference class for memory management. “An object is softly reachable if it is not strongly reachable but can be reached by traversing a soft reference.” An A instance can be registered to a resource manager to be a soft reference when it is no longer reachable by any thread. On the other hand, the resource manager can start off a thread to dequeue the SoftReference instances from a reference queue and clean up the resource properly.

First Week of the Semester

The school has been started this Tuesday. I attended to the classes for three consecutive nights. It's so tired. Tomorrow, I need to take another one in the afternoon. I'll need to decide whether I should drop the Tuesday class. That class was very boring.

Days of Part-time Working

I haven't blogged for a long time. I am currently working as a part time. In theory, I should have more time than before and I should have more time to blog. Obviously, it's not.

I found that there are many personal stuff have to take care in the first. Like have the MP3 player fixed, applying for CEF, etc.

The second week, I got cold again. I had to take rest at home and didn't go to work out. My body get a bit slimmer. It's not good though. After I got better, I go hiking with friends and upgrading the CPU. Actually, these few weeks I was trying to get an AMD's Althon XP CPU which was out of stock. I gave up in this week and got a Sampron. Another thing I wanted to get was a Palm T3 which was again out of stock. I am considering if I should by T5 instead.

This week, I finally started trying to swim. Rocky now is my "couch" preventing me from drowning. Even just one day, I thought I had the key to swim.

Today, we went to Leo's home to play video games and having dinner together. It's a tired but enjoyable day. Rocky and I almost missed a bus when going there. However, we still miss the stop to get off the bus. Luckily, Michael and Sammi were still enjoying their lunch.

Interesting enough, we missed the bus of the back trip. We then take the MTR to get back home. When getting the last trip of the train, we missed the train again.

Summary of These Two Weeks

Xmas eve - Had a party with colleague, then friends.
Day after boxing day - BBQ with other friends, dinner with yet some other friends. It's a great day.
New year eve - tried to buy T3. However, it seems that it was totally out of stock.

Plan on 2005 - Study. Start profiling my financial status, again.