River Side Bird

Thank God, my second baby girl is safely birth on last week. I went through the whole delivery process. Really felt, being a mother is not easy, 9 months carrying a heavy "burden" at all the time, cannot sleep well, sit well, or sometime will feel pain. When come to delivering, another suffering again, pain...pain. At a man or husband, i cannot do anything at all, only can give moral and love support. I feel very sad and down after the delivering, just suddenly come into my mind, thinking how my mun gave birth to me without father at her side, she alone, rushing to the clinic alone when feel want to deliver. How she felt, now i roughly can feel it. Feel sorry to mun, don't even have change to say thank you and "love u" to her. Only can say in the heart. To my wife and angel, i will do my best to love them, take care of them. I think this should be the best way to thank my mun for giving birth to me.

Happy mother day to all the mun....

An implementation of an interface should obey the three laws:
• Do what its methods say it does.
• Do no harm.
• Notify its caller with meaningful errors if unable to perform its
responsibilities.
Establish a contract for each interface (either formally or informally):
• Indicate the preconditions and postconditions for each method.

1. An Interface’s Implementation Shall Do What Its Methods Says It Does
This law may seem fairly obvious. The name of a method should correspond
to the operations that the implementation actually performs.2
Conversely, an implementation should perform the operations intended
by the creator of the interface. The method should return a value or
signal an error in accordance with the explained purpose of the method.
If the purpose and meaning of a method are not unambiguously obvious
from the method’s name and its place within an interface, then
those aspects should be clearly documented.3 The documentation may
refer to interface tests, such as those described later in this chapter, to
demonstrate method meaning in a practical, usage context.
An implementation needs to honor the meaning of a return value.

2. An Interface Implementation Shall Do No Harm
Harm refers to an implementation interfering with other modules in a
program or with other programs. The user of an interface implementation
should expect that the implementation performs its services in an
efficient manner.4
In particular, an implementation should not hog resources. Resources
in this case might include time, memory, file handles, database connections,
and threads. For example, if the implementation requires
connecting to a database that has limited connections, it should disconnect
as soon as the required database operation is complete. Alter-natively, the implementation could use a shared connection and release
that connection as soon as the operation finishes.5
If an implementation uses excessive memory, then it may cause page
faults that can slow down not only the program itself but also other
programs.

3. If An Implementation Is Unable to Perform Its
Responsibilities, It Shall Notify Its Caller
An implementation should always report problems that are encountered
and that it cannot fix itself. The manner of report (e.g., the error
signal) can either be a return code or be an exception. For example, if
the implementation requires a connection to a web service (as described
in Chapter 5) and it cannot establish that connection, then it should
report the problem. If there are two or more providers of a web service,
then the implementation should try to establish a connection with each
of the providers.
• Specify the protocol—the sequence of allowable method calls.
• Optionally, spell out nonfunctional aspects such as performance
or quality of implementation.
• Create tests to check that an implementation performs according
to its contract and that it obeys the three laws.

    根据佛教的“十二因缘”说：有情众生由于累劫的“无明”烦恼，早作各种“行”为，因此产生业“识”。随着阿赖耶识在母体子宫里渐渐孕育成生命体，是为“明色”；名是生命体的精神部分，色则指物质部分。数月之后，生命体的眼、耳、鼻、舌、身、意六根成熟，称为“六入”；胎儿脱离母体后渐渐开始解“触”外境，并对外界的苦乐感“受”产生“爱”与不爱，进而有了执“取”所爱的行动，结果由于身、口、意行为的造作，又种下了后“有”的生命体，有了“生”终将难免“老死”，“死”又是另一期生命的开始。所以佛教说：生命的流转，是无始无终的“生死轮回”。

    道元禅师说：“若生死中有佛，便能无生死。若知生死即涅槃之理，便能无可厌生死，亦能无可愿涅槃，自是超脱生死。”如果我们能过认清这个道理，断惑证真，觉悟生死同于涅槃的道理，自然不会受生死迷惑，而能安住于超越生死的藩篱，如此，纵死又有何惧呢？（